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• Java: How to get a classpath for current process

  - by phil swenson

  when I call System.getProperty("java.class.path") I only get this: /Users/pswenson/dev/sag/gradle-0.8/lib/gradle-core-0.8.jar The other classes in question are loaded at dynamically. Any ideas on finding the full classpath?

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• How to add two java.lang.Numbers?

  - by amit.dev

  I have two Numbers. Eg: Number a = 2; Number b = 3; //Following is an error: Number c = a + b; Why arithmetic operations are not supported on Numbers? Anyway how would I add these two numbers in java? (Of course I'm getting them from somewhere and I don't know if they are Integer or float etc).

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• retrieving the mac address using java

  - by user308806

  Hello, I would like to know how can i retrieve the mac address of a pc using Java. could you please help me. Regards,

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• How to ACTUALLY install Java on Linux?

  - by Camran

  I have a Ubuntu Server. From the terminal, how should I install JDK? In this guide it says to use this command: sudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk But on Suns website, it says JDK includes the JRE, so why the JRE in the line above? Anybody know how to actually install Java? Every guide and every forum shows different ways of doing it. BTW: It is a VPS (virtual private server) Thanks

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• Java Robot class and UAC

  - by bml13

  I am using the Java Robot class to take screenshots, my problem is that in W7 when the UAC dialog is shown (i right click on any application and select run as Admin) it will not appear in the screen shot or the whole screen is just black. Running my application with admin rights or as a service does not solve the problem. Please, does any one know what to do so that i will be able to capture the screen even when the UAC is showing? Thanks

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• How does java implement inner class closures?

  - by thecoop

  In Java an anonymous inner class can refer to variables in it's local scope: public class A { public void method() { final int i = 0; doStuff(new Action() { public void doAction() { Console.printf(i); // or whatever } }); } } My question is how is this actually implemented? How does i get to the anonymous inner doAction implementation, and why does it have to be final?

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• Java Folder Location for Image NetBeans 6.8

  - by ikurtz

  greetings, today i have started to learn java using netbeans ide. i would like my jframe to display an icon as stated in the following: setIconImage(Toolkit.getDefaultToolkit().getImage("SartreIcon.jpg")); the questin is under netbeans ide.. exactly in which folder do i place the graphic in question in order to load it? thanks.

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• Java equals and hashmaps problem

  - by johan001

  So I'm learning Java and I'm trying to understand equals, but I really don't understand it. So my question is: how does equals works? Thanks

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• How to create .exe file for java project.

  - by Manu

  hi all How to create .exe(executable)file for java project?. thanks for your help in advance.

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• Any YAML based fixture loader for Java?

  - by Adrian

  I've used DbUnit but after playing about with the Play Framework recently I've found it's Fixtures.load(String yamlFilename) really useful. Anyone know of a similar tool that can be used with any Java project?

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• Mint Linux - Downgrade Java to 1.5

  - by Chrisc

  Hello, Currently, I am running Mint Linux (Release 9). I need to downgrade Java from version 1.6 to 1.5, and have been trying to figure out how to go about this. So far, I've had no luck. The package manager doesn't seem to have it. Does anyone have any suggestions? Thanks, - Chris

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• Japanese fonts in a Java GUI

  - by kakashi

  Hi everyone, Is it possible to write a GUI in Java that would display Japanese fonts correctly regardless of the language settings of the OS it's being run on? I'd like to write a program which is able to do this but I'm not sure how to start going about this. Any advice would be a huge help!

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• data mining open source software in java

  - by pat

  Hi i just like to know is there any open source data mining software written in java that is approximately less than 3k lines of codes? If yes, please give download link i need to do software testing thank you.

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• how to build dynamically a Java classpath in Perl

  - by joe

  For Example in shell script : _CLASSPATH =. for jar in lib/*.jar do _CLASSPATH=${_CLASSPATH}:${jar} done how to build dynamically a Java classpath in Perl ?

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• How to Configure Google app engine Java project when using third party libraries like spring

  - by Praneeth

  How to configure applications that use Spring MVC for GAE Java. Is there an article which gives this information? More specifically I would like to know if I am required to upload spring related jars also to the cloud? How do I need to configure my application if I needn't upload these jars?

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• return type of main in java

  - by girinie

  Hi I like to know why only void return type for main method in java. public static void main(String [] args) Why there is no other return types other than void for main method. Thanks

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• java database backup restore

  - by jawath

  how do i backup /restore any kind of databases inside my java application to flate files.Are there any tools framework available to backup database to flat file like CSV, XML,or secure encrypted file,or restore from csv or xml files to databases ,it should be also capable of dumping table vise restore and backup also

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• How to determine a random int between 1 and 800 in java

  - by Charlie

  I feel like this is trivial, but my brain is not functioning. How can I generate a random integer between 1 and 800 in Java?

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• Java efficent strategy to access a DB

  - by user279481

  A simple question: what is the more efficient way to access a db in Java/JDBC? I'm a web developper and I'd like to write some reusable and scalable code. What can you suggest?

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• java interfaces

  - by Codenotguru

  write an interface with one method,two classes that implement the interface, and a main method with an array holding an instance from both classes.Using this array variable call the method in a foreach loop.This is a interview question in java anybody?

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• difference between hashmap and array list in java?

  - by Venkats

  In java, ArrayList and HashMap are using in collections. But i couldn't understand at which situations we should use ArrayList and which time use HashMap. What is the major difference between both of them?

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• Java OCR package

  - by pstanton

  what is the best OCR package you've used with java? I need to parse mainly numbers in a single font and am looking for a well architected, lite weight library to use. thanks.

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• parallel java libraries

  - by jetru

  I'm looking for Java libraries/applications which are parallel and feature objects that can be queried in parallel. That is, there is/are objects in which multiple types of operations can be made from different threads and these will be synchronized. It would be helpful if someone could ideas of where I could find such applications as well. EDIT: Actually, language doesn't matter so much, so C++, Python, anything is welcome

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• Java Bing Image Search

  - by Zinx

  Hi All, I have a small application in java which searches images using bing image search. The problem I am facing is that, its getting only first 20 images. May be because when we search on bing.com it populates first 20 images first and then its an infinite scrolling feature. Is there any way to search more than 20 images using bing? Cheers :)

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• Free Java library for converting existing PDF to PDF/A

  - by Shervin

  Hi. I am trying to convert PDF to PDF/A. Currently I can do this using OpenOffice pdf viewer plugin together with Jodconverter 2. But this is pretty cumbersome to do. Does anybody of any open source / free Java libraries I can use to do this.

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