transpose graph
- by rana123
how can i write program in java to find the transpose of the graph G, where the input and the output of the program are represented as adjacency list structure.
for example:
input:
12341
outout:
1432
Search Results
Search found 41003 results on 1641 pages for 'java properties'.
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Why does date is calculated from January 1st, 1970 ?
- by Vijay Shanker
Hi, Is there any reason behind using this date as standard for time manipulation? I have seen this standard in Java as well as in Python. These two languages I am aware of. Is other popular languages also follows the same standard? Please describe.Read the article
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LinkedBlockingQueue limit ignored?
- by tgguy
I created a Java LinkedBlockingQueue like new LinkedBlockingQueue(1) to limit the size of the queue to 1. However, in my testing, this seems to be ignored and there is often several things in the queue at any given time. Why is this?Read the article
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Please explain the usage of Labeled Statements.
- by kunjaan
Is breaking and continuing the only uses of labeled statements in Java? When have you used Labeled Statements in your programs?Read the article
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Is Spring hard compared to Ruby on Rails?
- by johnny
If I have no to little experience in either of them, but know enough Java and Ruby to be comfortable, is one framework harder to learn than the other? Is one easier to use for the beginner on these? I know it is hard to answer. Just looking for general thoughts on it.Read the article
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Scanner method to get a char
- by bizarrechaos
What is the Scanner method to get a char returned by the keyboard in Java. like nextLine() for String, nextInt() for int, etc.Read the article
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What is the performance cost of calling Thread.isInterrupted()?
- by Michael Barker
From the java sources, it look like to drops into native code. Is the cost roughly equivalent to a volatile read or does it need to acquire a lock of some type?Read the article
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Web Application
- by Raydon
I'm designing a web application. I was wondering if it was feasible to design a php front end (using some php framework e.g. CakePHP), which stores and retrieves data to display to the user. Then develop a java backend which listens to the database for changes, and depending on what was changed, performs some actions and updates the database. Any thoughts on this type of implementation would be appreciated.Read the article
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how to use JSF 1.2 and JPA in Netbeans ?
- by user364746
Hello... I'm trying to use JPA to connect my JSF components to database but the problem is that I can't figure out how to get this all combination works.I have done entity classes from database, also create persistence.xml file and now I don't know where to go!! I don't know how to use entity manager and entity manager factory. Is there any tutorial helps me how to use Java EE 5,JSF 1.2 and JPA in netbeans? any help appreciated ThanksRead the article
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Set seed on Math.random()
- by Kevin
Hi - I need to write some junit tests on java code that calls Math.random(). I know that I can set the seed if I was instantiating my own Random object to produce repeatable results. Is there a way to do this also for Math.random() ?Read the article
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What are C/C++ specific idioms?
- by Ole Jak
thay say A good C/C++ programmer should be familiar with language idioms that typically do not exist for ex in Java. What are such idioms?Read the article
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Feature set of a CMS and frameworks
- by James P.
Most people have heard of a Content Management Systems. However, what basic features should an application contain so it can be considered as a true CMS? Also, what Java frameworks could be used to make one?Read the article
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Can I move another program's window to the front of focus?
- by TwentyMiles
I am interacting with a third party application using it's API, and would like to move it to the front of focus (so that it is on top of all other open windows) when a user performs a certain action. While I can move my application up and down in the hierarchy pretty easily, there doesn't appear to be a way to interact with other windows. Is it possible to move another program's window to front with Java?Read the article
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Embedding a Jar into a C# Form
- by clone1018
Ok this situation is a bit difficult. But I am trying to embed a Java Jar into a C# form. Not as a new window or new process. The Jar will be a game that uses the LWJGL library. The C# Form will be a "wrapper" for it with tools and more. Anyone have any ideas? Is this even possible?Read the article
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j2ee good and reliable books
- by user161004
Can anybody suggest some good books for starting J2EE? I have done Core and Advanced Java ( up to Swing).Read the article
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how can i execute other class?
- by stella
hi, i have to connect java to mysql db using jdbc. thats not a problem and i can query data from db successfully. the problem is, i have another class that i need to execute which the application is using the data from db. can i execute jdbc and call the application class to executed after the data dragged from db?means, i just execute jdbc class in command prompt and automatically application class also executedRead the article
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building Q&A website : what CMS to use ?
- by radi
hi guys , i want to design a small website like stackoverflow (but in deferent language) and i want to use an opensource secure scalable cms to do that , so what cms to use ? ( i prefer using java ) thanks .Read the article
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How to set bit values which are not divided on byte boundary
- by changed
Hi I have a header field of 2 bytes where first four bits are packet type and other 12 bits are for length. but i don't know how to store this values and retrieve them. I am using ms c++ for client and java for server. It is the client which has to set this values and server has to retrieve it. ThanksRead the article
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If I'm running my App Engine app on localhost, will I not see a value for X-AppEngine-Country?
- by Bartholomew
According to the Release Notes: All user request have an X-AppEngine-Country header which contains the ISO-3166-1 alpha-2 country code for the user, based on the IP address of the client request. My app is running on localhost with the 1.5.1 Java release which contains the X-AppEngine-Country header but I don't seem to be receiving any value for this header in my requests. Do I have to deploy the app to a production instance to test this feature?Read the article
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Comparing the values of two generic Numbers
- by PartlyCloudy
I want to compare to variables, both of type T extends Number. Now I want to know which of the two variables is greater than the other or equal. Unfortunately I don't know the exact type yet, I only know that it will be a subtype of java.lang.Number. How can I do that? Thanks!Read the article
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configuring sms lib for use
- by jabsy
i want to write an application that sends bulk sms in java and i have a tutorial but i have to configure sms lib for me to use my modem as the port. can somehelpRead the article
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Calling outer class function from inner class
- by santose
hi, I have implemented a nested class in java. And I need to call the outer class method from inner class. //Code class outter{ void show(){ SOP("outter show"); } class inner{ void show(){ SOP("inner show"); } } } How can I call the outter method "show".Read the article
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Can I Define Exceptions to Eclipse cleanup rules?
- by Henrik Paul
Most often the cleanup rules (Preferences Java Code Style Clean Up) in Eclipse work perfectly and create nice-looking code. But sometimes, especially with comments and concatenated string snippets (like inline SQL queries), the cleanup just messes things up, and destroys my formatting. Is there a way to say to Eclipse "Don't touch this block of text! I have formatted it just the way I like, and you would make it just less readable"?Read the article
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How expensive is synchronization?
- by someguy
I am writing a networking application using the java.nio api. My plan is to perform I/O on one thread, and handle events on another. To do this though, I need to synchronize reading/writing so that a race condition is never met. Bearing in mind that I need to handle thousands of connections concurrently, is synchronization worth it, or should I use a single thread for I/O and event handling?Read the article
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Is there anything else other than class, interface or Enum?
- by GK
As we know to generate a class file there should be atleast one class or interface or an Enum should be declared in the java file. So i was curious that is there anything else as well other the mentioned which can cause a class file generation. Or did anybody think that as we can declare the above mentioned, we can declare this(Which you think) as well ?Read the article
