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• Java Swing - good idea?

  - by Mike

  hi, simple question : I need to write cross platform application (basically CRUD). Is usage of Java Swing good idea? Or is it out-dated and you know better solution? I dont want to use like 5 languages for various stuff, one or two should be enough. Thanx!

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• GAE/J datastore backup

  - by jb

  What is the easiest way to do a GAE/J datastore backup? It looks like there is python bulkloader.py tool to do backup for Python apps, but what should I do to backup Java app? Is there any way to use python tool?

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• performSelectorOnMainThread equivalent in Java for Android

  - by Daniel A. White

  I have an iPhone application and I am porting it over to Android. I have a service/controller that spawns new threads to perform some network tasks. I use performSelectorOnMainThread in my iPhone app. How can I have my Java app do the same or similar thing?

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• Creating an instance of a subclass extending an abstract class (Java)

  - by dacay

  In Java, is there any way to create an instance of any class that extends abstract class A, inside a member method of class A? Classes that extends abstract class A will return their instances with this method, but i don't want to implement same method in all subclasses with a "return this();" kind line.

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• Java image with double value pixel

  - by marionmaiden

  Actually I'm working with BufferedImages, that provide me pixel values in int type. Do you know a Java object to represent an image that the pixel value in double or float type?

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• Java socket programming header

  - by Andy

  Hi, I am trying to send a file through a java socket and receive it through another. However, this happens: Send Content: /* This is simply a file to transfer */ Received: ¨Ì

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• Java: "implements Runnable" vs. "extends Thread"

  - by goosefraba19

  From what time I've spent with threads in Java, I've found these two ways to write threads. public class ThreadA implements Runnable { public void run() { //Code } } //with a "new Thread(threadA).start()" call public class ThreadB extends Thread { public ThreadB() { super("ThreadB"); } public void run() { //Code } } //with a "threadB.start()" call Is there any significant difference in these two blocks of code?

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• Java - Regular expression question

  - by Jacob

  I am new to regular expressions. I want to use java's replaceAll() function to replace any CSS comments in a string. Basically I want to use regex to search for anything that is surrounded by "/*" and "*/" and replace it with "".

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• Refreshing data in a java.sql.ResultSet

  - by llm

  I have a java.sql.ResultSet object containg data from a query that was run. How do I refresh the data in the ResultSet to reflect the current data in the database? Thanks!

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• [Java] how to run in background

  - by Daeyun

  I want my Java program to run in the background. I'm on Windows 7. Do you have any idea? Thanks!

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• Java Compare Addresses

  - by Tom

  Hi, Does anyone know a library to compare addresses in Java ? Something that would give equality on addresses, written in different ways. For example, it should recognize that "22 Acacia Avenue" and "22 acacia av." is the same address. Of course, this can escalate a lot, that's why i'm asking. Thanks in advance.

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• Changing the default Windows language with Java application

  - by nedjma

  Can I change the default language of my host system (Windows XP) with a Java application? If yes, how I can do it?

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• Facebook Photo upload using PHP/Java

  - by shyam

  Is there a way I can post photos to my facebook profile using my username and password only? The code may be in PHP or Java. I dont want to make a facebook app and allow it to post photos to my profile. Any help is much appreciated. Thanks in advance.

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• Create servlet from existing Java project

  - by user69514

  I have a Java Swing project for my class. I would like put it on my website so people can use it. However I'm not sure if there is a way to turn it into a servlet. Or do I need to know JavaScript? I'm confused. Is there a way to make my swing application into a servlet automatically?

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• Java standard library - graph?

  - by Amir Rachum

  Is there a representation of a graph in Java standard libraries, like there is in the boost library in C++? Is there a graph representation which is a standard in the business?

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• Why do people run Java GUI's on the Event Queue

  - by asmo

  In Java, to create and show a new JFrame, I simply do this: public static void main(String[] args) { new JFrame().setVisible(true); } However, I have seen many people doing it like this: public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { new JFrame().setVisible(true); } }); } Why? Are there any advantages?

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• Expanding Java Memory-Mapped Byte Buffer

  - by geeko

  Greetings All, Is there a way to expand the Java memory-mapped byte buffer such that the new size is reflected back to the mapped file on disk ? Thank you !

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• Assertion in Java?

  - by Praveen Chandrasekaran

  what is assert keyword in java? tell me some real time example to understand the key role of the assertion's need?

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• Validating input using java.util.Scanner [closed]

  - by bhavna raghuvanshi

  I'm taking user input from System.in using a java.util.Scanner. I need to validate the input for things like: It must be a non-negative number It must be an alphabetical letter ...etc What's the best way to do this?

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• a good Java guide

  - by Lo'oris

  Do you know a good guide for Java, such as "dive into python" for python? If I searched google I expect I would find tons of random guides, but trying them all until I found a good one could take ages... that's why I am asking: do you already know one in particular? one you KNOW is good? I already know C, PHP and a bit of Python, if that matters.

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• How to find CPU-intensive class in Java?

  - by I.Randanad

  I have a big program in Java that uses multithreading. In some cases, the program starts using 100% of three cores of my eight core system. In normal use, the program use all cores at 1-2%. How can I find the class that's overloading cores?

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• Is it worth learning C# or Java in 2010

  - by Dhawal

  We are in web era standalone applications are almost gone everyone wants their internet application to run inside browser, programming languages like Ruby, Python and scala are becoming more and more mainstream. Sometimes I wonder what these programming language offer which make them top choice of IT companies, if I plan to become a freelance web developer is it worth learning C# or Java. I read beginner's book for both of them, but to master any of them require some time investment.

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• this["var"+"name"] in java

  - by Maxim

  In AS3 I can write this["foo"] for acces to varible foo. I can construct any string in brackets. Is there a way to do this in Java?

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• Any book for developing ecommerce website in Java

  - by Mirage

  I have seen that there many books titled 1)Build Ecommerce website in php 2)Build shopping cars in php or asp.net Is there any book which explains from scratch how to start building a website in java using any frame work or with servlets or jsp like 1)Basic form with logins and registration 2)building catalogue system 3)Building shopping cart 4)Building newletters system So i can strat reading it

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• C++ / Java Textbook [closed]

  - by hkf

  Possible Duplicate: The Definitive C++ Book Guide and List What is the best text book a beginner (non-CS major) can buy to master C++? And for Java? Thanks

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