1. Is a place where Coffee is grown
2. Is Name of a person
3. Is a Company Name Who developed JAVA
4. None of the above
1. Is a place where Coffee is grown
1. Is used to create byte code
2. It is compiler & Run-time environment
3. It is only Run time environment
4. None
2. It is compiler & Run-time environment
1. Its Compiler and interpreter technique
2. Since it is a open source
3. Since it is Object Oriented
4. All of the above
1. Its Compiler and interpreter technique
1. It is used to develop console and Window application
2. It is used to develop J2EE application
3. It is used to develop Microservice
4. All of the above
4. All of the above
1. Should be the first statement in the program
2. Package name can be any where in the program
3. Both 1 and 2
4. None
1. Should be the first statement in the program
1. File name and public class name should be same
2. A java file can have only one public class
3. Java class can be private
4. 1 and 2 are correct
4. 1 and 2 are correct
1. A path which contains byte-code to run
2. A path which contains source-code to compile
3. Both 1 and 2
4. None of the above
1. A path which contains byte-code to run
1. Multi user
2. Multi programming
3. Multi threaded
4. All of the above
3. Multi threaded


| Test Type | Grade | Subject |
|---|
Your current average is 80%.
Elegible Universities: 36
UBC, McMaster, Simon Fraser, Queen's, Alberta, Victoria, Guelph, Waterloo, York, Calgary, Carleton, Mount Royal, Toronto, Ottawa, New Brunswick, Dalhousie, Moncton, Ryerson, Laurentian, Concordia (Montreal), UOIT, Memorial, Acadia, Lakehead, Saint Mary's, St. Francis Xavier, UPEI, Fraser Valley, Windsor, Saskatchewan, Regina, UNBC, Cape Breton, Algoma, MacEwan, Vancouver Island


Popover that will dock to an element or a point, displaying an arrow against its docking position. Styling is very similar to the dialog component with the main difference being the outer shadow. Popovers are typically used without the header and/or footer.
The popover component is typically used when displaying complementary content. It's easy to dismiss so it should only contain simple actions and not be used to edit a lot of content because the user may loose changes when its closed.
{{#example}} {{#example-tabset}} {{#example-tab "inline-default"}}Default{{/example-tab}} {{#example-tab "inline-inverse"}}Inverse{{/example-tab}} {{/example-tabset}} {{#example-tab-content "inline-default"}}| Option | Type | Description | Default |
|---|---|---|---|
| content | string | Element | HTML content as a string or a Element element | |
| dock | string | Array | Dock to side. Can be a string or an array of "top", "right", "bottom", "left". | "bottom" |
| alignTo | Element / point | Element or point (Object with top, left) to dock the popover to. | |
| closeOnEscape | boolean | Close the popover with escape key | false |
| onClose | function | Callback fired when the popover is closing |
You can remove the padding on the header, content and footer to easier customize content. This example shows how a menu can be implemented and how the footer can be transformed into a button bar.
{{#example}} {{#example-tabset}} {{#example-tab "custom-default"}}Default{{/example-tab}} {{#example-tab "custom-inverse"}}Inverse{{/example-tab}} {{/example-tabset}} {{#example-tab-content "custom-default"}}


--- date: 2010-02-01T00:00:00Z published: true title: L5 Remote - Turn your iPhone or iPod Touch into a Universal Remote url: /2010/02/01/l5-remote-turn-your-iphone-or-ipod-touch-into-a-universal-remote/ ---
With the L5 Remote, you have the power of a whole coffee table full of remotes with the elegance and simplicity of your iPhone or iPod touch.
Cool.


"ONYCHA "a nail; claw; hoof, (Hebrews sheheleth; Exodus 30:34), a Latin word applied to the operculum, i.e., the claw or nail of the strombus or wing-shell, a univalve common in the Red Sea. The opercula of these shell-fish when burned emit a strong odour “like castoreum.” This was an ingredient in the sacred incense.
"ONYCHA "a nail; claw; hoof, (Hebrews sheheleth; Exodus 30:34), a Latin word applied to the operculum, i.e., the claw or nail of the strombus or wing-shell, a univalve common in the Red Sea. The opercula of these shell-fish when burned emit a strong odour “like castoreum.” This was an ingredient in the sacred incense.


Bridging the gap between the Senior Citizens and their Junior Caretakers!
EldersConnect is a Flutter app to help connect Senior Citizens to their Junior Caretakers in
order to keep track of medicines, health, etc. and maintain simple communication between them.
Enrollar
You're perfect learning platform!
This site helps you by finding the best course suited for you so you can do more
of the learning and spend less time searching for the course!
TeslaTweets
Predicting Tesla's Stock Prices
TeslaTweets is a project where we try to predict whether Tesla's stock price will rise or fall
based on Elon Musk's twitter data by using Machine Learning techniques and Natural Language
Processing.
Sonic Chat
Worry-free messaging
A safe, secure messaging service that you can use freely without having any
privacy-related fears on your mind.


What is a painting? In essence, does it refer to a visual composition of oil on a cloth canvas surface? Actually, the term can be applied more broadly than that. Ask a critic to define the art of painting. He or she will inevitably linger on the question of form. In art, a medium, such as musical composition, can be broken down into smaller categories based on form, such as a song or an opera.
| Jawaharlal Nehru Architecture and Fine Arts University Masab Tank Hyderabad Telangana 500028 |
|---|
| Sir Jamsetjee Jeejeebhoy School of Art Dr. D. N. Road Fort, Mumbai Maharashtra 400001 |
|---|
| Government College of Art & Craft Jawaharlal Nehru Road Kolkata West Bengal 700016 |
|---|
| Faculty of Visual Arts, Banaras Hindu University Aurobindo Colony Banaras Hindu University Campus Varanasi Uttar Pradesh 221005 |
|---|
| College of Arts and Crafts Vidyapati Marg Chajju Bagh, Patna Bihar 800001 |
|---|


Now specializing in mobile web technologies and development tools, ibws.com has been servicing the web design and optimization needs of businesses since 1998. If you are also interested in our consulting services, email us to request a quote.
Get Started!


Macron says Europe-China climate cooperation 'decisive'
SHANGHAI: Cooperation between Europe and China on reducing climate-warming emissions will be "decisive", French President Emmanuel Macron said on Tuesday, after the Trump administration filed paperwork to withdraw the United States from the Paris Agreement.
The US move is the first formal step in a one-year process to exit the global pact to fight climate change, part of a broader strategy by Trump to reduce red tape on American industry.
READ: US formally notifies UN of withdrawal from Paris climate accord
But it comes at a time scientists and many world governments are urging rapid action to avoid the worst impacts of global warming.
China and France pledged at this year's G20 summit to "update" their contributions against climate change beyond their current ones to reflect "their highest possible ambition".
The 2015 Paris climate agreement encourages countries to make stronger pledges if they are able to do so.
READ: Commentary: A sustainable future increasingly looks more Chinese
Speaking in Shanghai at a major trade fair, just after a keynote address by Chinese President Xi Jinping, Macron said commitments will need to be enhanced.
"If we want to be in compliance with the Paris agreement, we will need next year to enhance our commitments to reduce emissions, and we must confirm new commitments for 2030 and 2050," he said.
"The cooperation between China and the European Union in this respect is decisive," Macron added. "Next year, we need, in the agenda of enhancement, to be collectively up to the task."
Speaking to reporters earlier, a French presidential office official expressed regret at the US move and said Macron and Xi will reaffirm their commitment to the Paris agreement.
"We regret this and this only makes the Franco-Chinese partnership on the climate and biodiversity more necessary," the official, speaking on condition of anonymity, said.
"The text that will be signed tomorrow includes a paragraph on the irreversibility of the Paris agreement."
READ: China pledges new impetus in climate efforts after 2020
READ: China's 'Belt and Road' risks Paris climate goals: Analysis
Macron and Xi are due to hold a formal meeting in Beijing on Wednesday.
China aims to bring emissions to a peak by "around 2030" and raise the share of non-fossil fuels in its total energy mix to 20per cent by the end of the next decade, up from 15 per cent in 2020.
The United States is the first country to say it will withdraw from the deal, but 10 other countries have failed to ratify it, including Turkey, Iran and Iraq.


Deputy sheriff’s son suspected of fatally shooting Alabama sheriff
by Kenneth GargerThe son of an Alabama deputy sheriff is suspected of fatally shooting a neighboring county’s sheriff during a confrontation at a gas station on Saturday night, a report said.
William Chase Johnson, 18, whose dad is a deputy sheriff in Montgomery County, was arrested on suspicion of murdering Lowndes County Sheriff John Williams at a QV gas station in Hayneville, according to NBC News.
Details surrounding the fatal shooting were still murky as of early Monday. The state’s governor, Kay Ivey, had confirmed the news of Williams’ death via Twitter Saturday night.
“I’m saddened to hear about Sheriff Big John Williams, who was tragically killed this evening in the line of duty,” Ivey wrote.
“He will be remembered as a consummate professional and pillar of his community.”
Johnson was captured hours after the shooting when he returned to the scene early Sunday morning with a handgun, according to Sgt. Steve Jarrett, commander of state troopers’ Montgomery post.
The Montgomery County Sheriff’s Office told local NBC affiliates that Johnson was the son of one of its deputies, the report said.
“Details as to how he fled the scene and then reappeared at the scene, all that’s going to be investigated,” Jarrett said, according to WSFA-TV.
Williams was first elected sheriff in 2010. He joined the department in 1987 and was appointed chief deputy in 1990.
With Post wires


RTB Benchmarking API Documentation¶
rtb.bidding module¶
Bidding module
-
class
rtb.bidding.
BidSimulator
(data, bidding_strategy)[source]¶ Bases:
object
Simulates given bidding strategy on a dataset
Methods
-
__init__
(data, bidding_strategy)[source]¶ Initialize bidding simulator.
Parameters: data : pandas.DataFrame
Historical data containing features for model predicti n, bidding price, winning price, impressions and click indicators.
bidding_strategy : func
Function that retuns bid given prospenity to click and data row
-
__weakref__
¶ list of weak references to the object (if defined)
-
static
cpm
(total_spendings, num_of_impressions)[source]¶ Calculate Cost Per Mille - total cost advertiser pays for 1000 impressions.
-
static
ctr
(num_of_clicks, num_of_impressions)[source]¶ Claculate Click Through Rate - frequency of clicks on ads.
-
-
class
rtb.bidding.
EffectiveCPCBiddingStrategy
(data)[source]¶ Bases:
rtb.bidding.GoalBiddingStrategy
Bid based on prospenity and CPC calculated from training data
Methods
-
class
rtb.bidding.
FlatBiddingStrategy
(bid)[source]¶ Bases:
object
Constant bid
Methods
-
__call__
(prospenity, row)[source]¶ Execute bidding strategy
Parameters: prospenity : float
prospenity to click
row : dict-like
data row with features, pricing, impression and click data
Returns: bid_price : float
-
__weakref__
¶ list of weak references to the object (if defined)
-
-
class
rtb.bidding.
GoalBiddingStrategy
(bid)[source]¶ Bases:
object
Bid based on prospenity
Methods
-
__call__
(prospenity, row)[source]¶ Execute bidding strategy
Parameters: prospenity : float
prospenity to click
row : dict-like
data row with features, pricing, impression and click data
Returns: bid_price : float
-
__weakref__
¶ list of weak references to the object (if defined)
-
-
class
rtb.bidding.
RandomBiddingStrategy
(bid)[source]¶ Bases:
object
Random strategy that places random pertribations of a base bid
Methods
-
__call__
(prospenity, row)[source]¶ Execute bidding strategy
Parameters: prospenity : float
prospenity to click
row : dict-like
data row with features, pricing, impression and click data
Returns: bid_price : float
-
__weakref__
¶ list of weak references to the object (if defined)
-
-
class
rtb.bidding.
RunResults
(total_clicks, total_impressions, total_ad_spend)¶ Bases:
tuple
Attributes
Methods
-
__getnewargs__
()¶ Return self as a plain tuple. Used by copy and pickle.
-
static
__new__
(_cls, total_clicks, total_impressions, total_ad_spend)¶ Create new instance of RunResults(total_clicks, total_impressions, total_ad_spend)
-
__repr__
()¶ Return a nicely formatted representation string
-
_asdict
()¶ Return a new OrderedDict which maps field names to their values.
-
classmethod
_make
(iterable, new=<built-in method __new__ of type object>, len=<built-in function len>)¶ Make a new RunResults object from a sequence or iterable
-
_replace
(_self, **kwds)¶ Return a new RunResults object replacing specified fields with new values
-
total_ad_spend
¶ Alias for field number 2
-
total_clicks
¶ Alias for field number 0
-
total_impressions
¶ Alias for field number 1
-
rtb.data_reader module¶
Data reading modules
-
class
rtb.data_reader.
ClicksReader
(data_path)[source]¶ Bases:
rtb.data_reader.DataReader
IPinYou RTB clicks dataset loader. Expecting data from 2 or 3 competition (with additional columns)
Methods
-
class
rtb.data_reader.
DataReader
(data_path)[source]¶ Bases:
object
Sequential data reader with ability to specify it’s own row parsing funtion.
Methods
-
__init__
(data_path)[source]¶ Create data reader for IPinYou RTB dataset.
Parameters: data_path : str
Path to data file.
row_transformers : list of func
Functions that parse row of data and return feature array. Each transformer will be applied sequentially like t3(t2(t1(row)))
post_processor : func
Post processing function that takes transformed data list as input
-
__metaclass__
¶ alias of
ABCMeta
-
__weakref__
¶ list of weak references to the object (if defined)
-
-
class
rtb.data_reader.
ImpressionsReader
(data_path)[source]¶ Bases:
rtb.data_reader.DataReader
IPinYou RTB impressions Dataset loader. Expecting data from 2 or 3 competition (with additional columns)
Methods


Sample Password Encryption Function Using PBKDF2¶
This is an implementation sample that encrypts the password using PBKDF2.
Delivery package¶
The sample is provided in the following package.
please.change.me.common.authentication
Summary¶
An sample implementation of the function to encrypt passwords with salt addition and stretching using PBKDF2 is provided.
This sample is intended to be used in Nablarch Implementation Examples.
Request¶
Implemented¶
- Even if the same password is being used by multiple users, different values can be used for the encrypted password.
- The string length before encryption can be set to a sufficient length for preventing password cracking using rainbow tables.
- By changing the time required to calculate the encrypted password once, it is possible to take measures against password cracking using brute force.
Not yet considered¶
- A random salt can be added to each user.
- The salt can be kept in a secure storage outside the database.
Details of the password encryption function¶
This function uses one of the key derivation functions PBKDF2 to encrypt the password. The encrypted password is returned as a Base64-encoded character string.
This function uses a byte sequence that concatenates “system common fixed value” and “user ID” as a salt, so that even if different users use the same password, the encrypted password will be different.
The fixedSalt property described below can be used to provide salt of sufficient length as a measure against rainbow table, and the iterationCount property to provide a stretching count as a measure against brute-force.
See Configuration value of stretching count for reference information on how to examine stretching counts.
How to configure¶
This section describes how to configure the function.
<!-- Configuring the password encryption module -->
<component name="passwordEncryptor"
class="please.change.me.common.authentication.PBKDF2PasswordEncryptor">
<!-- Configure a fixed string to be used shared for salts in the system.Set a string of 20 bytes or more. -->
<property name="fixedSalt" value=" !!! please.change.me !!! TODO: MUST CHANGE THIS VALUE." />
<!-- Configure the stretching count so that the calculation time is about 10000 times more than the SHA-256 hash calculation. -->
<property name="iterationCount" value="3966" />
<!-- Configure the length (number of bits) of the encrypted password. -->
<property name="keyLength" value="256" />
</component>
A description of the property is given below.
| property name | Settings |
|---|---|
| fixedSalt (required) | A fixed string is used for the salt that is common to all systems. The actual salt is a sequence of bytes that concatenates this string with the user ID. Important This configuration value is related to the encryption strength of the password. If the value is set too short, it leaves the user vulnerable to password decryption using the rainbow table. Since salt concatenates the user ID, ensure that the byte sequence concatenating this string and the user ID is more than 20 bytes [1] in length. (It is recommended to secure 20 bytes with just this configuration alone.) |
| iterationCount | Number of times password encryption is stretched.Default value is 3966. [2] Considering the fact that several thousand to tens of thousands of stretching times are generally recommended and load on the system, the number of times stretching is preformed should be set so that the calculation time is about 10000 times longer than the calculation time with a hash function such as SHA-256. Configuration value of stretching count provides reference information on how to consider stretching counts. Tip The stretching process is a process with high CPU load. Specify |
| keyLength | The length of the encrypted password (bits). Default value is 256. Since the hash function used internally is SHA-1, set the value to 160 or more. The length of the string generated by using this function is the length obtained by encoding the byte string of the length specified here with Base64. |
| [1] | As of January 2014, since it has been confirmed that a rainbow table supporting a string of 14 characters or more has been sold, 20 characters or more is recommended here. Before using it in a project, be sure to check the latest information and set a salt length that can be assumed to be sufficient. |
| [2] | Although the number 3966 has no particular meaning, the value is a stretching number that serves the purpose, and it has been configured considering that the threat of password decryption can be mitigated by configuring a value that is not easy to guess, rather than specifying a convenient number that is easy to guess. |
Configuration value of stretching count¶
How the default value of the stretching count was arrived at in this sample implementation is described.
As a basic policy, the number of stretching times is determined based on the following information.
- How many seconds does it take to complete a brute-force operation if the password is hashed without SHA-256 stretching?
- Determine the target value for the time required to complete the brute force, and how many times of the time taken to hash a password once is needed to achieve the target value in the case of SHA-256.
The following information has been collected for examination in the above policy.
- Number of hash value calculations per second
- In November 2013, a server capable of computing 100,000,000,000,000 times of SHA-256 per second was available for sale.
- Password strength
- When a password of “more than 8 mixed alphanumeric characters” is enforced, it takes 62^8 calculations to complete a brute force attack.
- Target time to complete a brute force attack
- 1 year
From the above information, the following is obtained if we calculate how many times the calculation time of one hash value in PBKDF2 should be set as the calculation time for one hash value in SHA-256.
Time to complete password brute force process without SHA-256/stretching:
(62^8) / (10^11) ~= 2183 (s)
To extend the above time to the target value, how many times should the time to calculate the hash value of the password be in the case of SHA-256?:
(60*60*24*365) / ((62^8) / (10^11)) ~= 14444
From this value, it is clear that the iterationCount should be set so that the calculation time for PBKDF2 is about 15,000 times or more than that for SHA-256.
According to the measurement results on the development PC (CPU: Intel(R) Core(TM) i7-4770 3.40GHz), the calculation time of PBKDF2 is about 15,000 times longer than SHA-256, and it can take one year to complete a brute-force attack if the iteration count is about 3500 to 4000 times.
In the measurement with the above PC, the calculation time of once for PBKDF2 when iterationCount was set to 4000 was about 15 ms to 20 ms. This value is adopted as the default value because it is not considered to be a bottleneck for login processes where a response time of about one second is assumed.
While the PBKDF2 encryption process is being executed, this process almost occupies the CPU. Verify whether the time that the encryption process occupies the CPU in the actual operating environment is within the allowable time.