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 35513 results on 1421 pages for 'java interfaces'.
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Does resharper add any kind of code refactoring to VS that Eclipse doesn't have?
- by Roman A. Taycher
And if so are there Eclipse plugins that add those types of code refactoring to eclipse? note:for C#/Java respectively.Read the article
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Strange eclipse error
- by Gandalf StormCrow
Has anyone expirience this error before: this happens when I hit CTRL + space , here is the error : For those who has tinyurl blocked: This compilation unit is not on the build path of the java project. This is a maven project, mvn eclipse:eclipse doesn't help I mean it compiles and runs just fine just something is wrong and I can't figure out what. I checkouted this project from SVN, it wasn't developed on my PC.Read the article
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Where can I find a good introductory tutorial for Spring?
- by will
I am a Java developer but up to now have not had any hands on experience using the Spring framework. Does anyone know of anyone good online tutorials that explain the basics and offer good examples and sample code.Read the article
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Difference between a Deprecated and an Legacy API?
- by Vaibhav Bajpai
I was studying the legacy API's in the Java's Collection Framework and I learnt that classes such as Vector and HashTable have been superseded by ArrayList and HashMap. However still they are NOT deprecated, and deemed as legacy when essentially, deprecation is applied to software features that are superseded and should be avoided, so, I am not sure when is a API deemed legacy and when it is deprecated.Read the article
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How to handle error in this case? By Exceptions or boolean or something else
- by TP
I am trying to create a Response class in Java which has a method void setResponse(String response); Different response subclasses will have different requirements for the response. The string that is passed to the function is received from the user. What is the correct way of handling a wrong response? Should the function throw an exception like IllegalResponseException Should the function be declared like boolean setResponse(String response, String errorMsg) and return false if the response is wrong and set the error message to the appropriate valueRead the article
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Why do I have to pay for something that I'm not using?
- by Knowing me knowing you
Guys just finished reading one of my college books about threads in Java and I was informed that lock - what ever it is, is in Object class. So it looks like even though I'm not using threaded classes my objects will be heavier because of that? Don't you think that it's a bit annoying and unfair to expect from anyone to pay for something s/he have not intention of using? ThanksRead the article
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The fundamentals of Hash tables?
- by kylex
I'm quite confused about the basic concepts of a Hash table. If I were to code a hash how would I even begin? What is the difference between a Hash table and just a normal array? Basically if someone answered this question I think all my questions would be answered: If I had 100 randomly generated numbers (as keys), how would I implement a hash table and why would that be advantageous over an array? Psuedo-code or Java would be appreciated as a learning tool...Read the article
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Eclipse Type Hierarchy Question
- by Tom Tresansky
In Eclipse, the Java Method Override Indicator is the little upwards arrow next to a method in the Type Hierarchy view. A solid arrow means a method overrides an existing method lower in the hierarchy. What does the hollow arrow mean? Do annotations effect either arrow?Read the article
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CMS for a fairly large Mobile Website - Please Help Select.
- by Vinod
I am looking for :- A mature, scalable and proven CMS solution With Support for Mobilization (Android and iPhone) Good Amount of Customization using Java / .NET Lots of out of the box components to choose from. Please help with recommendations. p.s Are there any Mobile CMS providers which works in a SaaS model?Read the article
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how to chose an open source library ?
- by radi
hi guys , when every one of us program in java he would need a library (some jars) to complete his work . so when this programmer find some libraries he need . how he can find the best of these libs ? thanks.Read the article
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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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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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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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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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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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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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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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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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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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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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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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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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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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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
