Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. With the use of inheritance the information is made manageable in a hierarchical order.
The class which inherits the properties of other is known as subclass (derived class, child class) and the class whose properties are inherited is known as superclass (base class, parent class).
extends is the keyword used to inherit the properties of a class. Following is the syntax of extends keyword.
Syntax
class Super { ..... ..... } class Sub extends Super { ..... ..... }
Following is an example demonstrating Java inheritance. In this example, you can observe two classes namely Calculation and My_Calculation.
Using extends keyword, the My_Calculation inherits the methods addition() and Subtraction() of Calculation class.
Copy and paste the following program in a file with name My_Calculation.java
Example
class Calculation { int z; public void addition(int x, int y) { z = x + y; System.out.println("The sum of the given numbers:"+z); } public void Subtraction(int x, int y) { z = x - y; System.out.println("The difference between the given numbers:"+z); } } public class My_Calculation extends Calculation { public void multiplication(int x, int y) { z = x * y; System.out.println("The product of the given numbers:"+z); } public static void main(String args[]) { int a = 20, b = 10; My_Calculation demo = new My_Calculation(); demo.addition(a, b); demo.Subtraction(a, b); demo.multiplication(a, b); } }
Compile and execute the above code as shown below.
javac My_Calculation.java java My_Calculation
After executing the program, it will produce the following result −
Output
The sum of the given numbers:30 The difference between the given numbers:10 The product of the given numbers:200
In the given program, when an object to My_Calculation class is created, a copy of the contents of the superclass is made within it. That is why, using the object of the subclass you can access the members of a superclass.
The Superclass reference variable can hold the subclass object, but using that variable you can access only the members of the superclass, so to access the members of both classes it is recommended to always create reference variable to the subclass.
If you consider the above program, you can instantiate the class as given below. But using the superclass reference variable ( cal in this case) you cannot call the method multiplication(), which belongs to the subclass My_Calculation.
Calculation cal = new My_Calculation(); demo.addition(a, b); demo.Subtraction(a, b);
Note − A subclass inherits all the members (fields, methods, and nested classes) from its superclass. Constructors are not members, so they are not inherited by subclasses, but the constructor of the superclass can be invoked from the subclass.
The super keyword is similar to this keyword. Following are the scenarios where the super keyword is used.
It is used to differentiate the members of superclass from the members of subclass, if they have same names.
It is used to invoke the superclass constructor from subclass.
If a class is inheriting the properties of another class. And if the members of the superclass have the names same as the sub class, to differentiate these variables we use super keyword as shown below.
super.variable super.method();
This section provides you a program that demonstrates the usage of the super keyword.
In the given program, you have two classes namely Sub_class and Super_class, both have a method named display() with different implementations, and a variable named num with different values. We are invoking display() method of both classes and printing the value of the variable num of both classes. Here you can observe that we have used super keyword to differentiate the members of superclass from subclass.
Copy and paste the program in a file with name Sub_class.java.
Example
class Super_class { int num = 20; // display method of superclass public void display() { System.out.println("This is the display method of superclass"); } } public class Sub_class extends Super_class { int num = 10; // display method of sub class public void display() { System.out.println("This is the display method of subclass"); } public void my_method() { // Instantiating subclass Sub_class sub = new Sub_class(); // Invoking the display() method of sub class sub.display(); // Invoking the display() method of superclass super.display(); // printing the value of variable num of subclass System.out.println("value of the variable named num in sub class:"+ sub.num); // printing the value of variable num of superclass System.out.println("value of the variable named num in super class:"+ super.num); } public static void main(String args[]) { Sub_class obj = new Sub_class(); obj.my_method(); } }
Compile and execute the above code using the following syntax.
javac Super_Demo java Super
On executing the program, you will get the following result −
Output
This is the display method of subclass This is the display method of superclass value of the variable named num in sub class:10 value of the variable named num in super class:20
If a class is inheriting the properties of another class, the subclass automatically acquires the default constructor of the superclass. But if you want to call a parameterized constructor of the superclass, you need to use the super keyword as shown below.
super(values);
The program given in this section demonstrates how to use the super keyword to invoke the parametrized constructor of the superclass. This program contains a superclass and a subclass, where the superclass contains a parameterized constructor which accepts a string value, and we used the super keyword to invoke the parameterized constructor of the superclass.
Copy and paste the following program in a file with the name Subclass.java
Example
class Superclass { int age; Superclass(int age) { this.age = age; } public void getAge() { System.out.println("The value of the variable named age in super class is: " +age); } } public class Subclass extends Superclass { Subclass(int age) { super(age); } public static void main(String argd[]) { Subclass s = new Subclass(24); s.getAge(); } }
Compile and execute the above code using the following syntax.
javac Subclass java Subclass
On executing the program, you will get the following result −
Output
The value of the variable named age in super class is: 24
IS-A is a way of saying: This object is a type of that object. Let us see how the extends keyword is used to achieve inheritance.
public class Animal { } public class Mammal extends Animal { } public class Reptile extends Animal { } public class Dog extends Mammal { }
Now, based on the above example, in Object-Oriented terms, the following are true −
Now, if we consider the IS-A relationship, we can say −
With the use of the extends keyword, the subclasses will be able to inherit all the properties of the superclass except for the private properties of the superclass.
We can assure that Mammal is actually an Animal with the use of the instance operator.
Example
class Animal { } class Mammal extends Animal { } class Reptile extends Animal { } public class Dog extends Mammal { public static void main(String args[]) { Animal a = new Animal(); Mammal m = new Mammal(); Dog d = new Dog(); System.out.println(m instanceof Animal); System.out.println(d instanceof Mammal); System.out.println(d instanceof Animal); } }
This will produce the following result −
Output
true true true
Since we have a good understanding of the extends keyword, let us look into how the implements keyword is used to get the IS-A relationship.
Generally, the implements keyword is used with classes to inherit the properties of an interface. Interfaces can never be extended by a class.
Example
public interface Animal { } public class Mammal implements Animal { } public class Dog extends Mammal { }
Let us use the instanceof operator to check determine whether Mammal is actually an Animal, and dog is actually an Animal.
Example
interface Animal{} class Mammal implements Animal{} public class Dog extends Mammal { public static void main(String args[]) { Mammal m = new Mammal(); Dog d = new Dog(); System.out.println(m instanceof Animal); System.out.println(d instanceof Mammal); System.out.println(d instanceof Animal); } }
This will produce the following result −
Output
true true true
These relationships are mainly based on the usage. This determines whether a certain class HAS-A certain thing. This relationship helps to reduce duplication of code as well as bugs.
Lets look into an example −
Example
public class Vehicle{} public class Speed{} public class Van extends Vehicle { private Speed sp; }
This shows that class Van HAS-A Speed. By having a separate class for Speed, we do not have to put the entire code that belongs to speed inside the Van class, which makes it possible to reuse the Speed class in multiple applications.
In Object-Oriented feature, the users do not need to bother about which object is doing the real work. To achieve this, the Van class hides the implementation details from the users of the Van class. So, basically what happens is the users would ask the Van class to do a certain action and the Van class will either do the work by itself or ask another class to perform the action.
There are various types of inheritance as demonstrated below.
A very important fact to remember is that Java does not support multiple inheritance. This means that a class cannot extend more than one class. Therefore following is illegal −
Example
public class extends Animal, Mammal{}
However, a class can implement one or more interfaces, which has helped Java get rid of the impossibility of multiple inheritance.


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Game of Life
Timeout(ms):
Number of alive cells (only for random):
Random
Glider
Lightweight spaceship
Pulsar
Glider gun
Stripes
Image
Start
Stop
Save as png


Successful at providing consistent and high quality cleaning services.
Accommodates customers needs at all times. Dedicated to exceptional
standards of performance and quality.
Cleaning, dusting, wipe down walls, floors, appliances and cabinets.
Vaccuming & furniture cleaning are available services.
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From tidying up to deep cleaning, we work hard to make sure your home is spotless when we step out your door. Find the best options for your needs below:
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raquel you need to tell me what to write here. it needs to be a short paraprah, prob 3-4 lines.


When connecting to a PostgreSQL server, you might get error messages that need
some more explanations. If you encounter them, please read the following information
carefully, we're sure they will help you.
If this message appears, there are two possible reasons for this: either the server isn't running at all. Simply start it.
The other non-trivial cause for this message is that the server isn't configured to accept TCP/IP requests on the address shown.
For security reasons, a PostgreSQL server "out of the box" doesn't listen on TCP/IP ports. Instead, it has to be enabled to listen for TCP/IP requests. This can be done by adding tcpip = true to the postgresql.conf file for Versions 7.3.x and 7.4.x, or listen_addresses='*' for Version 8.0.x and above; this will make the server accept connections on any IP interface.
For further information, please refer to the PostgreSQL documentation about
runtime configuration.
If this message appears, your server can be contacted correctly over the network, but isn't configured to accept your connection. Your client isn't detected as a legal user for the database.
You will have to add an entry in the form
host template1 postgres <IP_ADDRESS>/24 md5
for IPV4 or
host template1 postgres ::ffff:<IP_ADDRESS>/120 md5
for IPV6 networks to the
pg_hba.conf file.
For further information, please refer to the PostgreSQL documentation about
client authentication.


This page contains pointers to several miniature implementations of Joy. None of them are compatible with the current version of Joy, but all of them capture its essence. Maybe they wil be of use to some people who want to write up to date versions of Joy in some language other than C.


Touch this page to see circle appear that randomly changes its border colour (only works with touchscreens)


What is the difference in functionality between Server, Enable, Extend, and Express in Portal products?
Server is the foundation product of the Portal family. It meets the needs of users to complete business needs with a variety of applications, with search, customization and other functions, and has a complete security mechanism.
Enable has all the features of the Server product, plus the addition of Web Content Management, document libraries and advanced search capabilities based on the functionality of the Server. From the perspective of product structure, there are some configuration files and license information. These files in Enable are collectively referred to as upsell.
The Extend product is similar to Enable, but adds the collaboration service and the e-form application to the Enable feature.
The Express product has a DB2 database installed, etc. Other features (purple areas) are no different from servers.
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Triangle Tracker
Input the Length values to determine type of a Triangle:
First Length
Second Length
Third Length
Submit
Clear


The map functions determine the overall look of the map and whether or not the map gets displayed. All parameters associated with the map have default values, and do not need to be set by the user.
| Function | Description |
|---|---|
| setMapCenter(address: string) | Return: None This function sets the location of the center of the map. The address of the location of the map center is passed to the function as a string. Setting the value of the map center is optional. If no value is chosen, the default value is the address of the first location created by the user. |
| setMapZoom(zoom: number) | Return: None This function sets the zoom of the map. The higher the zoom value, the more zoomed in the map will be. The zoom value ranges from 0 to about 20 (the maximum value depends on the location being viewed). Setting the value of the zoom is optional. If no value is chosen, the default value is 5. |
setLoadMap(loadMap: boolean) | Return: None This function determines if the map will be loaded and displayed. Passing it a value of true means that the map will be loaded and displayed. Setting the value of loadMap is optional. If no value is chosen, the default value is true. |
getMapCenter() | Return: string This function returns the current address for the location that is the center of the map. |
getMapZoom() | Return: number This function returns the current value of the map's zoom. |
getLoadMap() | Return: boolean This function returns the current value of the loadMap property. |


Designed for humans, designed by humans...
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| #: 12915111 |
Car: - |
driver: - |
passenger: amutha valli |
phone:<PHONE_NUMBER> |
| account: 1506222 |
filed: 22/6 00:57 |
when: 22/6 01:10 |
estimated pickup: - |
assigned: 22/6 00:55 |
| started: 22/6 00:58 |
arrived: - |
picked up: - |
dropped off: 22/6 00:58 |
closed: 22/6 00:58 |
| route from: Adyar,Chennai,TamilNadu,India to: Anna International Terminal,Chennai,TamilNadu,India |
||||
| distance: 13 km |
duration: 32 minutes |
source: manual |
created by: manikam vedi |
reserved for: - |
| price: quoted - |
price: paid 32 minutes |
info: - |
close reason: dropped off |
rejects: - |
| vehicle tags - |
driver tags 32 minutes |


DropDown Display Tracked By Attribute
- Display Tracked By attribute lets users to configure the attribute which has the value to be displayed for the
item shown in the dropdown.
- To set that, users need to provide key name for displayTrackBy attribute.
- According to following example above property is set as follows.
- [displayTrackBy]="'value'" => This 'value' key contains the item value which needs to show for a dropdown
item.
Refer display-tracked-by-usage.data.ts file to see the data list used in here.
Suggested Links
API Doc for Display
Tracked By Attribute


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func canThrowAnError() throws {
// this function may or may not throw an error
}
do {
try canThrowAnError()
// no error was thrown
} catch {
// an error was thrown
}
func makeASandwich() throws {
// ...
}
do {
try makeASandwich()
eatASandwich()
} catch SandwichError.outOfCleanDishes {
washDishes()
} catch SandwichError.missingIngredients(let ingredients) {
buyGroceries(ingredients)
}
enum PrinterError: Error {
case outOfPaper
case noToner
case onFire
}
func send(job: Int, toPrinter printerName: String) throws -> String {
if printerName == "Never Has Toner" {
throw PrinterError.noToner
}
return "Job sent"
}
do {
let printerResponse = try send(job: 1040, toPrinter: "Bi Sheng")
print(printerResponse)
} catch {
print(error)
}
do {
let printerResponse = try send(job: 1440, toPrinter: "Gutenberg")
print(printerResponse)
} catch PrinterError.onFire {
print("I'll just put this over here, with the rest of the fire.")
} catch let printerError as PrinterError {
print("Printer error: \(printerError).")
} catch {
print(error)
}
let printerSuccess = try? send(job: 1884, toPrinter: "Mergenthaler")
let printerFailure = try? send(job: 1885, toPrinter: "Never Has Toner")
var fridgeIsOpen = false
let fridgeContent = ["milk", "eggs", "leftovers"]
func fridgeContains(_ food: String) -> Bool {
fridgeIsOpen = true
defer {
fridgeIsOpen = false
}
let result = fridgeContent.contains(food)
return result
}
fridgeContains("banana")
print(fridgeIsOpen)


Required Sample :
OnlyAscii Sample :
OnluNum Sample :
Range Sample :
Custome Validator (Date) Sample :


Results on test data
Stats for test data
Number of test instances:
Number of absolute matches:
Percent absolute matches:
%
Average error:
Worst error:
Number of output codes in incorrect format:
Results on test data (sorted from worst to best error)
Shuffle!
loading more...


HelloWorld Examples
- HelloWorld uses Velocity for self-instantiation. Very simple introduction into VIL, but project can only be instantiated once.
- HelloWorldExtended uses VTL to generate code out from a template file.
- HelloWorldJar uses a VTL file to generate code, compile and pack it into a runnable JAR file.


Build A Component
You'll learn the most important things of building components with Luda in this chapter.
Live Demos
There are some live demos built with Luda, you can play with them at codepen.
How Luda Component Works
Component Class Execution Process
Component Instance Lifecycle
Define Component Classes
When you create components with Luda, you actually define component class objects. Luda will maintain component instances automatically according to your definitions.
A component class can be created by calling the luda.component
factory function.
This function accepts two parameters, the name and the root selector of a class.
Named Component
If a string is passed in as the name parameter, Luda treats the component as a named component which can be accessed by component users.
// @example Create a named component class.
luda.component('myComponent', '.my-component')
Component users can use the automatically created proxy of a named component to pick component instances by passing in a selector, and access public properties and methods of the instances.
// @example Component users can access a specific component instance
// of a named component class.
luda.myComponent('#my-component').doSomething().doSomethingElse()
// @example Component users can access multiple component instances
// of a named component class.
luda.myComponent('.my-component').doSomething().doSomethingElse()
Anonymous Component
If you pass in undefined
as the name parameter, Luda treats your component as an
anonymous component which can not be accessed by component users.
// @example Create an anonymous component class.
luda.component(undefined, '.my-anonymous-component')
Multition Component
By passing in a valid css selector as the root selector parameter, you get a component class which can create multiple instances. Any element matches the selector will be treated as a component root element. An instance will be created for each root element, after document ready or a root element appended to document. A created instance will be destroied after its root element removed from document or attributes changed which makes it don’t match the root selector anymore.
// @example Create a multition component class.
luda.component('myComponent', '.my-component')
Singleton Component
You won’t need a singleton component except you want to handle global behaviors.
A singleton component class can be defined by passing in
document
as the root selector. Only one instance will be created after document
ready and it will never be destroied since the document object is always there,
except current web page is destroied or redirected.
// @example Create a singleton component class.
luda.component('mySingletonComponent', document)
You may wonder why a singleton component class cannot be created by passing in
a specfic html element but only the document
object? That’s because in single
page applications, you can not ensure the element picked is the same object
after page redirections. That may lead to instance lifecycles not able to be
tracked.
Define Component Properties
Component properties and methods are defined on prototypes of component classes.
The execution context of defined methods is the current component instance, which
means this
points to the instance itself except you manually change the
execution context.
Private Property
All properties of a component instance are treated private by default.
Additionally, you can define private properties with the .protect
method for
a clear meaning. If a component user tries to access private properties of
components, warning messages will be shown on the console pannel.
// @example Define private properties and methods.
luda.component('myComponent', '.my-component')
.protect({
// Define a self maintained property
// with a default value.
counts: 0,
// Define a parent maintained property,
// which is passed in to this component
// through the data-max-toggle-counts attribute.
maxCounts(){
return this.root.data('max-toggle-counts')
}
})
Public Property
If you want to expose public properties of named components to component users,
you can define them with the .include
method.
// @example Define public properties and methods.
luda.component('myComponent', '.my-component')
.include({
// Do something and dispatch an event
// to transfer data to ancestor components.
toggle(){
if(this.counts < this.maxCounts()){
this.counts += 1
this.root.toggleClass('active').trigger('toggled', this.counts)
}
}
})
Define Component Helpers
Component helpers are functions used to bind event listeners, watch dom mutations, and collect dom elements for components. The create helper and destroy helper’s execution context is the current component instance, and the execution context of the other helpers is the component class’s prototype.
The Find Helper
The find helper should return definitions of element searching rules in an object for creating element getters on the component class’s prototype. These getters works under the context of component instances. Searching rules can be defined as css selectors, functions and any other objects.
If a rule is defined as css selectors, the searching range is inside the current instance’s root element. Matched elements will be collected and cached when necessary. After matched elements added to or removed from the root element dom tree, cached results of the getters will be updated automatically. (For nested components, only elements directly warpped in current instance’s root element but not nested in descendant root elements will be collected.)
If a rule is not defined as css selectors, the searching range, return value and cache of the getter are totally controlled by the rule itself.
// @example Define dom getters for a component.
luda.component('myComponent', '.my-component')
.help({
find(){
return {
descendants: '.descendant',
outOfRoot: luda('#out-of-root')
}
}
})
The Listen Helper
The listen helper should return event listener definitions in an array for
binding component event listeners. All listeners will be binded to document
only once and triggered under delegation mode. The binding syntax is similiar
to the luda(selector).on
method but allows
multiple callbacks.
The execution context of an event callback is the current component instance if the callback is defined on the component class’s prototype. In this situation, only events dispatched from the current component’s root element dom tree will be captured. (For nested components, events dispatched from nested descendant root element dom trees will not be captured.)
If an event callback isn’t defined on the component class’s prototype, its execution
context is the currentTarget of the captured event. And any events dispatched from
document will be captured. It’s just like define event listeners by calling
luda(document).on(...)
.
// @example Define event listeners for a component.
luda.component('myComponent', '.my-component')
.help({
listen(){
return [
['click keydown@enter', '.descendant', this.doSomething, this.doSomethingElse],
['click', '#out-of-root', function(event, data){}, function(event, data){}]
]
}
})
The Watch Helper
The watch helper is used to watch node and attribute mutations on component dom trees. An mutation observer will be created for each component instance according to the definitions. The syntax of defining observers is similiar to binding event listeners in the listen helper.
If a callback is defined on the current component’s prototype, the callback’s execution context is the current component instance. Otherwise, the execution context is the target of the mutation. (For nested components, mutations in nested descendant root element dom trees will not be captured.)
// @example Define an observer for a component.
luda.component('myComponent', '.my-component')
.help({
watch(){
return {
node: [
['.descendant', this.doSomething, this.doSomethingElse],
['.descendant', function(elements, type){}, function(elements, type){}]
],
attr: [
['name value', '.descendant', this.doSomething],
['name', '.descendant', function(element, oldValue){}]
]
}
}
})
The Create Helper
The create helper executes after the find, listen and watch helper executed. It executes whenever a component instance is created, you can use this helper to rewrite properties inherited from the component class’s prototype.
luda.component('myComponent', '.my-component')
.help({
create(){
if(this.root.hasClass('countable')){
this.counter = setTimeout(() => { this.counts ++ })
}
}
})
The Destroy Helper
The destroy helper executes whenever a created component instance is going to be destroied.
luda.component('myComponent', '.my-component')
.help({
destroy(){
if('counter' in this){
clearTimeout(this.counter)
}
}
})
Use Mixins
Mixins are useful when you need share codes among components, Luda mixins are flexible and easy to use.
Define Mixins
Mixins can be defined by calling the luda.mixin
function. This function
accepts two parameters, the name and the property definitions.
Named Mixin
You can create a named mixin by passing in a string type name and an object type
definition to the luda.mixin
function.
// @example Create a named mixin.
luda.mixin('myMixin', {
cls: 'active',
activate(){
this.root.addClass(this.cls)
},
deactivate(){
this.root.removeClass(this.cls)
},
toggle(){
this.root.toggleClass(this.cls)
}
})
Named mixins can be accessed by passing in a name to the luda.mixin
function.
// @example Access a named mixin.
luda.mixin('myMixin')
Anonymous Mixin
An anonymous mixin can be created by passing in only an object type definition
to the luda.mixin
function, and the created mixin will be returned.
// @example Create an anonymous mixin.
let myMixin = luda.mixin({
cls: 'active',
activate(){
this.root.addClass(this.cls)
},
deactivate(){
this.root.removeClass(this.cls)
},
toggle(){
this.root.toggleClass(this.cls)
}
})
Include Mixins
Luda provides some convenient methods to use mixins in components, you can pick needed mixin properties to include them into different components.
Pick Wanted Mixin Properties
You can use the .only
method of a created mixin to pick the properties needed
in an object, and include the object into a component.
// @example Pick wanted mixin properties.
luda.component('myComponent', '.my-component')
.include(
myMixin.only('toggle')
)
.protect(
myMixin.only('cls', 'activate', 'deactivate')
)
Filter Out Unwanted Mixin Properties
Unwanted mixin properties can be filtered out by calling the .except
method
of a created mixin, the left properties will be assigned into an object and
returned.
// @example Filter out unwanted mixin properties.
luda.component('myComponent', '.my-component')
.include(
myMixin.except('cls', 'activate', 'deactivate')
)
.protect(
myMixin.except('toggle')
)
Pick And Rename Wanted Mixin Properties
If you need pick mixin properties and rename them, you can use the .alias
method, the picked properties will be assigned in an object using the new names.
// @example Pick and rename mixin properties.
luda.component('myComponent', '.my-component')
.include(
myMixin.alias({exposedToggle: 'toggle'})
)
.protect(
myMixin.only('cls', 'activate', 'deactivate')
)
Pick All Mixin Properties
If you need pick all properties of a created mixin, you can use the .all
method.
All defined mixin properties will be assigned in an object and returned.
// @example Pick all mixin properties.
luda.component('myComponent', '.my-component')
.include(
myMixin.alias({exposedToggle: 'toggle'})
)
.protect(
myMixin.all()
)
Directly Access A Mixin Property
If you don’t want to pick mixin properties in an object, but need directly access
the property, you can use the .get
method.
// @example Directly access a mixin property.
luda.component('myComponent', '.my-component')
.include({
toggle(){
if(this.root.hasClass('active')){
myMixin.get('deactivate').call(this)
}else{
myMixin.get('activate').call(this)
}
}
})
Other Things
-
In some cases, you may handle component creating and destroying manually. If so, you can add the
data-auto="false"
attribute to the component’s root element. -
If a component user calls instance methods through a component proxy, the return value will be the proxy itself. This provides a chain api experience for convinence. If the methods’ return values are needed, an additional option parameter can be passed into the methods to break the chain, and the method’s return values will be collected in an array.
// @example Returns a proxy.
luda.myComponent('.my-component').doSomething(arg).doSomethingElse(arg)
// @example Returns an array which contains the return values.
luda.myComponent('.my-component').doSomething(arg, {chain: false})
- Get to know more about building Luda components at the API page.


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Bringing the Blog Online!
Dec 8
This marks post number two of learnwithstu. No one has read the first post yet because the blog has not had web hosting, but hosting has been acquired, and I'm about to put my first site ever up on the web. If you have any questions or comments, please get in touch with me!
First Blog Post
Nov 30
Hi! My name is Stuart and this is my very first post in learnwithstu. This blog will document my journey to becoming a designer of the web and more. The more knowledge I pick up along the way, the more I will share with you guys. I haven't added comment support yet but I hope to do that ASAP, because I think I would truly benefit from the input of my readers. I have never made a blog before, and I think this will be a great learning experience. I hope you guys enjoy it too!


  >> "README" $ git commit -a -m "Made a Change"
Commit on base branch
$ git checkout master $ echo "made changes again!" >> "README" $ git commit -a -m "Also Made a Change"
Suppose we have following repository
We want to merge 'iss53' into 'master'
Merge branch 'iss53' into 'master'
$ git checkout master $ git merge iss53 $ git branch -d iss53
Suppose we have following scenario
We want to drop 'iss91' but keep the other two
Suppose we have following scenario
If we merge 'experiment' into 'master'
$ git checkout master $ git merge experiment
What if we rebase 'experiment' against 'master'
$ git checkout experiment $ git rebase master
Rebasing makes our merging more cleaner!
$ git checkout master $ git merge experiment
Clone main project
$ git clone$ cd project
Create a feature branch and start working
$ git checkout -b featureA (work) $ git commit (work) $ git commit
Add your own fork and push your feature to it
$ git remote add myfork$ git push myfork featureA
Add another feature
$ git checkout -b featureB origin/master (work) $ git commit $ git push myfork featureB
Get the latest changes on main project
$ git fetch origin
Rebase 'featureA' and then send pull request
$ git checkout featureA $ git rebase origin/master $ git push -f myfork featureA (send pull request)


Thanks for your visit, Kindly navigate through below Experts profiles and choose one
{{ exp.expert }}


Eliminate (as much as possible) the use of raw SQL (or any textual query language), instead providing Java classes that allow the expressions of queries and updates in as concise but compile-time checkable a manner as possible.
Reduce the pain of schema and data migrations as much as possible, but not so much that the system used to do the migrations is too complex for anyone to understand or use properly.
Use annotations to layer database metadata over the top of (almost) POJOs.
Use annotations that are syntactically and semantically equivalent to EJB3 persistence annotations wherever possible.
Support multiple database backends (currently MySQL and Postgresql).
Provide caching support (currently integrated with EHCache).
Keep an eye toward eventual support for sharded databases.
I and others who have contributed to the library hope that you find it useful, easy to use and time saving. Comments and contributions are always welcome.


| Picture and Descrpition |
Player 1 Controls | Player 2 Controls |
|
Movement |
A=Left S=Down D=Right W=Up |
P=UP L=LEFT :=Down '=RIGHT |
|
Missiles |
H=Missile Fire |
Right Arrow = Missile Fire |
|
Orbs |
F=Orb Fire |
Left Arrow = Orb Fire |
|
Lasers |
G = Laser Fire |
Down Arrow = Laser Fire |
|
Tip for yellow asteroids |
Player 1 has the capability to stop the asteroid by shooting an orb at it with the button f and then firing it at your opponent by shooting it with a laser with the button g It is important to remember you can only do this with the yellow asteroids and no other |
Player 2 has the capability to stop the asteroid by shooting an orb at it with the left arrow key and then firing it at your opponent by shooting it with a laser with the down arrow key It is important to remember you can only do this with the yellow asteroids and no other |


Please supports Linux and OSX at the moment. We're internally using Ubuntu Trusty and Yosemite but it should work on other reasonably recent distros.
curl https://get.please.build | bash
This will download and install the latest version of Please on your system.
It needs a Python parser to run; it ships with support for CPython (only version 2 for now)
and PyPy. On Linux it should automatically attempt to fetch a portable version of PyPy if not
available; on OSX you'll need to install it using brew install pypy
or similar.
In either case, if you want to use CPython, you'll need cffi installed;
pip install cffi>=1.5.0
should take care of it.
There are a couple of shell completion scripts available:
Bash: https://s3-eu-west-1.amazonaws.com/please-build/plz_complete.sh
Download it and source
it from your .bashrc
.
zsh: https://s3-eu-west-1.amazonaws.com/please-build/plz_complete.zsh
Download, rename to _plz and put it somewhere in your $fpath,
e.g. /usr/local/share/zsh/site-functions
Run plz init
at the root of your repo to create the .plzconfig file.
There are many options that can be configured in this file but you can worry about them
later - the defaults should be fine to begin with.
You will need to write some BUILD files to define how to compile your code. Carry on to Please Basics which will explain more about it.


Full-Stack Developer, Software Engineer
My name is Matthew Lesniewicz. I am 23 years old and am currently enrolled in a coding bootcamp. I live in Midlothian VA and am a recent graduate of VCU. I majored in computer science with a minor in math. In my free time I enjoy practicing my coding skills, watching movies, playing video games, and going out to eat with friends.
In college, I mainly focused on java programming, math, and database development. I really enjoyed learning these topics but I always had an interest in web development. My schooling at VCU did not include much web development but I studied and practiced some in my free time and decided that I wanted a career in this field. I enrolled in a coding bootcamp after college to become a full stack web developer.
Add up to the given number with the gems hidden values.
Used technologies:
matt0568.github.ioExtremely difficult hangman game where you can test your vocabulary.
Used technologies:
matt0568.github.ioLord of the Rings timed trivia game.
Used technologies:
matt0568.github.ioWeb app using the Giphy API where you can search and watch gifs of your favorite cartoons.
Used technologies:
matt0568.github.ioTrain scheduling app where the user may add there trains and it will keep track of multiple trains next arrival time.
Used technologies:
matt0568.github.ioRecipe building app where you may customize and save your recipes. The app has an auto populating dropdown menu of ingredients as you type and for every ingredient you add the app will suggest similar recipes to look compare to.
Used technologies:
elasticbeanstalk.comIn Customer app you may use commands to see info on products and buy them. In Manager app you may see info on all products, see info on low inventory products, add to a products inventory, and add new products.
Used technologies:
github.com/MATT0568A way to search google books and save or preview books you want to read.
Used technologies:
Heroku LinkPhone:<PHONE_NUMBER>
Email<EMAIL_ADDRESS>Phone:<PHONE_NUMBER>


Keith Vaz to stand down in General Election
by Poppy WoodLabour’s Keith Vaz has announced he will not stand for re-election in the upcoming December ballot.
The veteran politician was facing a six-month suspension from the Commons after being found to have “expressed willingness” to purchase cocaine for others.
In a statement, Vaz said: “I have decided to retire after completing 32 years as the member of parliament for Leicester East. In that time I have won eight General Elections. It has been an honour and a privilege to serve my constituency since I came to the city in 1985.”
Vaz thanked his constituents in Leicester East for their “absolute loyalty and support.”
He added: “The people of Leicester East will always be in my heart.”
Labour leader Jeremy Corbyn praised his former colleague, saying: “Keith Vaz was among the pioneering group of black and Asian Labour MPs elected in 1987. I was proud to support his selection and incredibly proud when he won, taking the seat from the Tories.
“Keith has made a substantial and significant contribution to public life, both as a constituency MP for the people of Leicester and for the Asian community across the country. He has helped to pave the way for more BAME people to become involved in politics.”
Vaz has held his Leicester East seat since 1987, and has maintained majority of over 20 per cent in every election since 1992.
In the last General Election in 2017, the politician won his highest majority of all time, gaining over 35,000 votes to give him a majority of more than 22,000.
In October the Commons approved findings of an investigation by the Standards Committee, which found that there was “compelling evidence” that Vaz had offered to buy drugs for male prostitutes.
However, Kate Green, the chair of the committee, warned that the politician could avoid the suspension as it would effectively be nullified by the dissolution of parliament prior to the 12 December General Election.
Main image: Getty


Built from solid hardwood with mid-modern steel
legs, James's delicate lines belie its gravity and durability.
We retrofitted our Genesis table with bright colors, sleek legs on casters, and an elegant hardwood net. Game on.
View Ping PongView HeritageWe retrofitted our Genesis table with bright colors, sleek legs on casters, and an elegant hardwood net. Game on.
View SportWe can modify our tables to meet your space's
needs, or partner with you to create a strikingly original design.


--- layout: default title: roderick.dk site_section: frontpage blog --- {% for post in site.posts limit:1 %}
Posted on {{ post.date | date: "%Y/%m/%d" }}
Permalink for this post


Klotski
Instructions
- MOVE CURSOR: wasd
- MOVE SHAPE: wasd + shift
- SAVE: ~
- RESTORE: %
- - Deselect text box first -
- WIN: move red square to the marked area.
I'm glad of this opportunity to learn OO javascript, which is pretty flexible & distinct from class based OO.
Released under MIT license. You know, because I didn't invent klotski.


--- title: "Software Installation" output: html_document ---
In order to get started with this workshop, you might need to download some tools.
You can access Jupyter notebooks via ubc.syzygy.ca. I highly recommend you use this method if you have a CWL account. Alternatively, you can log in with a google account via cybera.syzygy.ca. From here, simply upload the .ipynb file and you will be able to access it. If these two methods don’t work, you can follow the instructions below.
{{% callout note %}} If you have a UBC CWL or google account, I suggest you use Jupyter notebook via syzygy as you will not need to download anything! {{% /callout %}}
{{% callout note %}}
If you are using Jupyter notebook, you cannot upload the workshop_name
folder (you can only upload files not folders). Instead of manually uploading everything, follow these steps:
After you download it, find it in your downloads and zip (compress) it.
Upload the .zip file into Jupyter home
In Jupyter home, open a new Terminal and run:
! unzip ~/workshop_name.zip -d ~/
rm ~/workshop_name.zip
You need to install Python to run Jupyter Lab. As well, you will need package manager. You can install that here (make sure you download Miniconda MacOSX 64-bit bash
). From there, you can install Jupyter Lab via conda
:
conda install -c conda-forge jupyterlab
For this workshop, we will be conducting our analysis via the R programming language, as such you need to install R. You do not need to install R Studio, but I suggest you do so for your future R endeavors.
You need to download the IRkernal
package in order to use R in Jupyter notebooks. To do so, simply install the pacakge via R Studio:
install.packages("IRkernel")
Then, open your terminal and paste the following code:
R -e "IRkernel::installspec()"
After that, you should be able to use R in Jupyter now! To check, simply type jupyter lab in your terminal and see if you can create a new notebook using the R language.
jupyter lab


Building with base isolation under seismic loading
In this application, the maximum deformation of a building with base isolation subjected to seismic loading is simulated.
The seismic load is defined according to the Eurocode 8, German Annex, and it is shown in terms of spectral accelerations.
Different parameters such as earthquake zones, importance coefficient and underground parameter, influnce the amplitudes and shape of the spectrum.
The governing equation of motion of the building are solved using the response spectrum analysis.
The app shows the eigenfrequencies, the natural mode shapes and the maximum deformation of the system, with and without base isolation.
In this app, the following interactivities have been implemented:
- The mass of the floors can be modified using the mass input box.
- The bending stiffness ($EI$) of each side wall can be modified using the bending stiffness input box.
- The earthquake zone, the importance coefficient and the underground parameter can be changed on the right next to the Elastic Response Spectrum plot. Whenever those paramters are changed, the user should hit the "Re-calculate Elastic Response Spectrum" button to re-draw the spectrum.
- To solve the problem hit the button "Solve System". This should be reapeted whenever the user changes the input parameters.
Ref: Dynamik der Baukonstruktionen (2017) Christian Petersen, Horst Werkle, Example <IP_ADDRESS>, Page 903.


|
leaf-disk-gen
Leaf disk generation for DIRSIG scenes
|
Leaf disk. More...
Public Member Functions | |
Area helpers | |
| Float | computeArea () const |
| Compute area. More... | |
| Float | computeProjectedArea (const Vec3< Float > &dir) const |
| Compute projected area. More... | |
Write helpers | |
| void | writeGListInstance (std::ostream &ostr) const |
| Write GList instance. More... | |
| void | writeObj (std::ostream &ostr, unsigned int &ver_offset, unsigned int ver_res=12) const |
| Write OBJ. More... | |
Public Attributes | |
| Vec3< Float > | pos = {0, 0, 0} |
| Position. More... | |
| Vec3< Float > | normal = {0, 0, 1} |
| Normal direction. More... | |
| Float | radius = 1 |
| Radius. More... | |
Leaf disk.
|
inline |
Compute area.
Compute projected area.
| void ld::LeafDisk::writeGListInstance | ( | std::ostream & | ostr | ) | const |
Write GList instance.
| [in,out] | ostr | Output stream. |
| void ld::LeafDisk::writeObj | ( | std::ostream & | ostr, |
| unsigned int & | ver_offset, | ||
| unsigned int | ver_res = 12 |
||
| ) | const |
Write OBJ.
| [in,out] | ostr | Output stream. |
| [in,out] | ver_offset | Vertex offset. |
| [in] | ver_res | Vertex resolution. |
ver_offset
argument allows multiple disks to be written to the same file by keeping track of the number of vertices written so far. This should be zero initially, and should not be modified by the user between calls.ver_res
argument is the number of vertices to generate on the perimeter of the disk, which should be greater than or equal to three. Also note that the disk is tessellated as a triangle fan about a vertex in the center, such that the implementation actually writes ver_res + 1
vertices. Furthermore, each triangle is locally scaled according to ver_res
so that its area is equivalent to the area of the sector it represents. | Float ld::LeafDisk::radius = 1 |
Radius.


MY INTERESTS AND HOBBIES
I LIKE VARIOUS FORMS OF PROGRAMMING AND WEB DEVELOPMENT
SPA
In Single Page Applications there is no need to refresh the app when user navigates across different sections.
ALGORITHMS
It is important to think about efficiency and performance of code. I like to challenge myself on sites like "codewars".
DATA MINING
Extracting information from database requires different methods depending on the size and type of data.
Personal Info
Name:
Maciej Radziszowski
Birth Date:
16/06/1994
Address:
Cracow, Poland
Phone:
788 645 663
Email:
<EMAIL_ADDRESS>Employment
- 08/2018 - Present
- SolarWinds
- Developer
- 07/2017 - 08/2018
- SolarWinds
- Associate Developer
- 05/2016 - 07/2017
- DIAMED
- Web administrator/Developer
- 01/2016 - 04/2016
- Codesushi
- Front-end/Angular Developer
FAVOURITE TECHNOLOGIES
JavaScript
Powerful language which gives a lot of freedom. It can be used on both client and server side.
d3.js
Javascript library for data visualization. One of the best among all.
Angular
Great framework for web applications. Big community and complete documentation.


Photographer Injured At Georgia-Auburn Releases Statement
by Tzvi MachlinThere were a lot of shocking moments in Week 12 of college football. But a Georgia photographer who got run over by Georgia RB Brian Herrien and injured was among the scariest moments.
Chamberlain Smith, an intern for the Georgia Athletic Department, was accidentally knocked unconscious when Herrien was tackled out of bounds.
Smith was taken to the hospital and later diagnosed with a concussion and bruises.
Fortunately, Smith has since recovered enough from the injury to make a statement. She took to Twitter and announced that she would be resting and recovering for the next few days. But Smith also pledged to be “back on the sidelines soon!”
“I’m so glad to be walking away with nothing more than a concussion and some bruises,” she wrote on a Twitter post. “I will be home resting and recovering for the next several days, but look forward to being back on the sidelines soon!”
Per reports, Herrien and Georgia QB Jake Fromm both said a prayer for Smith at halftime.
We’re all glad to hear that Smith didn’t suffer any more serious injuries.
Get well soon Chamberlain!


Fascinating! We take pride in being the Best Art College in Dehradun. At Dehradun College of Art, we teach students from the heart! Well known for great work, our students are encouraged to produce great art at their pace. We also offer professional diploma, taking them all the way to a PhD degree in fine art.
Know More...We offer different courses according to the need of the student from 15 days, 1 month, 3 month, 6 month, part time, regular courses to 1 Year Super Professional course and Degree courses like Bachelors, Masters and PhD.
Every human has a passion that is the beckoning of his soul. Each soul speaks its own language of passion lies in talent and a teacher or parent can help discover this hidden talent. Here, at Dehradun College of Art we help to discover and nurture some of these talents. I, owe my current status in the field of art to the guidance, mentoring and support of my guru, Mr. Ashwani kumar Prithviwasi. He brought out my true self through my paintings. I am eternally obliged to him for the knowledge imparted. A special mention to my family who encouraged and stood by my side all through. From the Dehradun college of Art, I would like to further give this knowledge to the future budding artist that will explode new colors in this World.
Sushant Arya From the Director's desk


- Thank you for choosing Bodhi Linux!
- We strongly believe in minimalism and user choice, therefore you will only get a few tools out of the box. Everything else you might need can be installed with ease using our AppCenter.
- Bodhi Linux uses the Enlightenment Desktop Environment which gives you a lightweight and beautiful operating system you can style just as you want it to look.
- To top it all off, we have excellent documentation and an active, friendly community always ready to lend a hand on any issue you might have. Drop by our forums or IRC and see for yourself!


PIZZA GET
Select Pizza Size:
Small
Medium
Large
Extra Large
Select Toppings:
Pepperoni
Mushrooms
Onions
Sausage
Bacon
Extra Cheese
Olives
Pineapple
Green Peppers
Spinach
How many breadsticks on the side?
Add to Order!
Total:


RuleGuard Class
Definition
Line
730
of
System.Lex/Lexer.cm
Constructors & Destructor
public
nothrow
RuleGuard
(
Lexer
& lexer_,
int
ruleId_)
public
~RuleGuard
()
Member Variables
private
Lexer
&
lexer
Constructor& Destructor Details
RuleGuard Constructor
public
nothrow
RuleGuard(
Lexer
& lexer_,
int
ruleId_)
Definition
Line
732
of
System.Lex/Lexer.cm
~RuleGuard Destructor
public
~RuleGuard()
Definition
Line
736
of
System.Lex/Lexer.cm


{% extends 'base.html' %} {% block title %}Resources{% endblock %} {% block content %}
From anywhere in the U.S. call the National Sexual Assault Hotline at 1.800.656.HOPE(4673) or call<PHONE_NUMBER> to reach the RAINN business office.
Alabama Coalition Against Rape
Montgomery, AL
334.264.0123
Alaska Network on Domestic Violence & Sexual Assault (ANDVSA)
Juneau, AK
907.586.3650
Arizona Sexual Assault Network (AzSAN)
Phoenix, AZ
Arkansas Coalition Against Sexual Assault
Fayetteville, AR
501.246.3276
CALCASA Rape Prevention Resource Center
Sacramento, CA
916.446.2520
Colorado Coalition Against Sexual Assault
Denver, CO
303.839.9999
Connecticut Sexual Assault Crisis Services (CONNSACS)
East Hartford, CT
860.282.9881
Contact Lifeline
Wilmington, DE
302.761.9800
DC Rape Crisis Center
Washington, DC
202.232.0789
Florida Council Against Sexual Violence
Tallahassee, FL
850.297.2000
Georgia Network to End Sexual Assault (GNESA)
Atlanta, GA
404.815.5261
Guam Healing Arts Crisis Center
Tamuning, GU
671.647.5351
Hawaii State Coalition for the Prevention of Sexual Assault
Honolulu, HI
808.733.9038
Idaho Coalition Against Sexual & Domestic Violence (ICASDV)
Boise, ID
208.384.0419
Illinois Coalition Against Sexual Assault (ICASA)
Springfield, IL
217.753.4117
Iowa Coalition Against Sexual Assault (ICASA)
Des Moines, IA
515.244.7424
Kansas Coalition Against Sexual & Domestic Violence
Topeka, KS
785.232.9784
Kentucky Association of Sexual Assault Programs
Frankfort, KY
502.226.2704
Louisiana Foundation Against Sexual Assault (LAFASA)
Hammond, LA
225.372.8995
Maine Coalition Against Sexual Assault
Augusta, ME
207.626.0034
Maryland Coalition Against Sexual Assault
Silver Spring, MD
301.328.7023
Jane Doe Inc. / MCASADV
Boston, MA
617.248.0922
Men Can Stop Rape
Washington, DC
202.265.6530
Michigan Coalition Against Domestic & Sexual Violence
Okemos, MI
517.347.7000
Minnesota Coalition Against Sexual Assault
St. Paul, MN
651.209.9993
Mississippi Coalition Against Sexual Assault
Jackson, MS
601.948.0555
Missouri Coalition Against Domestic and Sexual Violence
Jefferson City, MO
573.634.4161
Montana Coalition Against Domestic Violence and Sexual Assault
Helena, MT
406.443.7794
Nebraska Coalition to End Sexual and Domestic Violence
Lincoln, NE
402.476.6256
Nevada Coalition Against Sexual Violence
Las Vegas, NV
New Hampshire Coalition Against Domestic & Sexual Violence
Concord, NH
603.224.8893
New Jersey Coalition Against Sexual Assault
Trenton, NJ
609.631.4450
New Mexico Coalition of Sexual Assault Programs
Albuquerque, NM
505.883.8020
New York State Coalition Against Sexual Assault
Albany, NY
518.482.4222
New York City Alliance Against Sexual Assault
New York, NY
212.229.0345
North Carolina Coalition Against Sexual Assault
Raleigh NC
888.737.CASA (2272)
North Dakota Council on Abused Women's Services/CASAND
Bismarck, ND
701.255.6240
Ohio Alliance to End Sexual Violence
Cleveland, OH
888.886.8388
Oklahoma Coalition Against Domestic Violence and Sexual Assault
Oklahoma City, OK
405.524.0700
Oregon Coalition Against Domestic and Sexual Violence
Portland, OR
503.230.1951
Pennsylvania Coalition Against Rape (PCAR)
Enola, PA
717.728.9740
Day One
100 Medway Street
Providence, RI 02906
401.421.4100
401.454.5565 (fax)
E-mail<EMAIL_ADDRESS>South Carolina Coalition Against Domestic Violence & Sexual Assault
Columbia, SC
803.256.2900
South Dakota Coalition Against Domestic Violence & Sexual Assault
Pierre, SD
605.945.0869
Tennessee Coalition Against Domestic and Sexual Violence
Nashville, TN
615.386.9406
Texas Association Against Sexual Assault
Austin, TX
512.474.7190
Utah Coalition Against Sexual Assault
Salt Lake City, UT
801.746.0404
Vermont Network Against Domestic Violence and Sexual Assault
Montpelier, VT
802.223.1302
Virginia Sexual and Domestic Violence Action Alliance
Charlottesville, VA
434.979.9002
Richmond, VA
804.377.0335 (v/tty)
Washington Coalition of Sexual Assault Programs
Olympia, WA
360.754.7583
West Virginia Foundation for Rape Information and Services
Fairmont, WV
304.366.9500
Wisconsin Coalition Against Sexual Assault
Madison, WI
608.257.1516
Wyoming Coalition Against Domestic Violence and Sexual Assault
Laramie, WY
307.755.5481


{% include leftmenu.html %}
{% include rightmenu.html %}
{% include section1.html %}
{% include section2.html %}
{% include section3.html %}
{% include section4.html %}
{% include section5.html %}
{% include section6.html %}
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{% include section8.html %}