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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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• How can I create a Java device emulator

  - by Jim

  I want to create my own device to be compatible with the Java ME SDK, in fact it is a CDC PBP1.0 device. Does anyone have any experience to share on this or can point me to the correct place within Sun's jumbled website.

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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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• 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 convert dwg file to jpeg or gif format using java api or .net library

  - by magh

  How can be autocad file (dwg) converted to jpeg or gif file using java api or or .net library. Without using the convertors Thanks in advance

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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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• 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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• 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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• 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 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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• 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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• 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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• 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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• 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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• Same keyword for two purposes in java?

  - by gurukulki

  As we use "default" keyword as a access specifier, and it can be used in switch statements as well with complete different purpose, So i was curious that is there any other keywords in java which can be used in more then one purposes

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• Same keyword for two purposes in java?

  - by gurukulki

  As we use "default" keyword as a access specifier, and it can be used in switch statements as well with complete different purpose, So i was curious that is there any other keywords in java which can be used in more then one purposes

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• Java marshaller performance

  - by cbz

  Hi, I've used JAXB Marshaller as well as my own marshaller for marshalling pure java bean objects into XML. It has been observed that both of them require almost same time to marshal. The performance is not acceptable and needs to be improved. What are possible ways where we can improve performance of marshaller? Like threading?

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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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• 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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• Maximum number of type parameters used in a java class

  - by True Soft

  What is the maximum number of type parameters you used in a java class? Example for 4: class MyClass<A, B, C, D> { }

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• Java Operator Precedence Comparison

  - by Andrew

  Does java have a built-in method to compare precedence of two operators? For example, if I have a char '/' and a char '+' is there a method I can call that compares the two and returns true/false if the first is greater than the second (e.g. true)?

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• Translate Ruby snippet to Java

  - by sipwiz

  How can I do the equivalent of the Ruby snippet below using Java? require 'net/http' res = Net::HTTP.get_response(URI.parse("http://somewhere.com/isalive")).body

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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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