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• web proxy on google app engine

  - by Bunny Rabbit

  i am writing a web proxy in java on google App engine.I figured out that the urls can be fected using the url Fetch servce but i have no idea about how to manage cookies and the streams as in youtube .Ne suggestions ?

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• 2D Array values frequency

  - by Morano88

  If I have a 2D array that is arranged as follows : String X[][] = new String [][] {{"127.0.0.9", "60", "75000","UDP", "Good"}, {"127.0.0.8", "75", "75000","TCP", "Bad"}, {"127.0.0.9", "75", "70000","UDP", "Good"}, {"127.0.0.1", "", "70000","UDP", "Good"}, {"127.0.0.1", "75", "75000","TCP", "Bad"} }; I want to know the frequency of each value .. so I27.0.0.9 gets 2. How can I do a general solution for this ? In Java or any algorithm for any language ?

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• Can I reset a forgotten owner password with iText?

  - by Tom Hubbard

  With iText I can use Java to open a pdf and write it. If the pdf has an owner password I can still open it but it can not be written. Clearly the content is readable, it seems like at that point you could simply write the document to a new file. iText doesn't allow this, it throws a bad password exception. Is there a way around this?

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• JDBC with MySQL

  - by Josh K

  I'm working on getting my database to talk to my Java programs. What do I need to get started? Having already read through (and been thoroughly confused, something that does not happen often) with some other turorials I figured I'd best ask here. How do I import a jar file from the local directory? Can someone give me a quick and dirty sample program using the JDBC?

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• I need a simple command line program to transform XML using XSLT

  - by fuzzy lollipop

  I am on OSX Snow Leopard (10.6.2) I can install anything I need to. I would preferably like a Python or Java solution. I have searched on Google and found lots of information on writing my own program to do this, but this is a just a quick and dirty experiment so I don't want to invest a lot of time on writing a bunch of code to do this, I am sure someone else has done this already.

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• app engine jpa N-way joins ?

  - by cometta

  may i know is the latest version of jgae support N-way joins? or still limit to 2-way join? reference: http://gae-java-persistence.blogspot.com/2010/03/executing-simple-joins-across-owned.html?showComment=1276491851890_AIe9_BEqp-CCn0bibiOUY8JUbbSFwFE02aF9d68baX0squIcfBnve8K3iIT3IEhPhpJxEBSZQLlz8tH-NMq1XGzOV0fAA8othN4f3zhR2B6xN0WzsTRpyEZJl2vPDonhVY38iUhJGe8Ot9URs3IjYk4HoH9LG41az7l0blTBNNnpJuyI-xl5CDJGoPLGk5jw4tLvtvsCYhq3n7XuiZwJIaBMWjHSDdy7-fB1NYszI0G4f9JRjZ5UdDM4at3o3tAhd-CYK2Af1dnG#c3679507832415682306

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• Plotter: What is fixed - the height or the width

  - by Jayan

  I am fixing some printing (plotter) problems in our java code(windows 32). The paper is 50 meter roll , loaded on to plotter. The paper It 36 inch "wide". I am printing image 36inch by 108 inch. When I print what is with height and width I can use? [ FYI. The testing is done using print to file, No paper is wasted :) ] Thanks, Jayan

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• Migration of a VB6 application

  - by WinFXGuy

  Migation of a VB6 application to .NET platform is almost like a rewrite, no matter it is VB.NET or C#. Do you think it will require more effort to do it in Java platform, when compared to .NET platform, since it is a rewrite anyway? Please share your thoughts!

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• What are the optimal checkstyle settings for MethodLength and FileLength?

  - by Daniel Alexiuc

  I am starting a new Java web project that will be worked on by up to 10 developers. It will probably be hard to change once the codebase grows large, so what are the best checkstyle settings to use for methodLength and fileLength?

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• Shell script to import mysql dump file.

  - by Chandu

  Hi all, I'm new to mysql. My requirement is to import a sql dump into mysql using shell script for linux and this script should be called by java program for the restoration to take place automatically. Please advice me on this. Regards, Chandu.

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• getting call hierarchy of a method using reflections

  - by Steven

  hi, i used java reflections to get methods from a class(loaded those classes).Now i want to get the call hierarchy of those methods.How can i use call hierarchy option in eclipse IDE for that?any examples or links????

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• Iteration order of HashSet

  - by eljenso

  If every object added to a java.util.HashSet implements Object.equals() and Object.hashCode() in a deterministic fashion, is the iteration order over the HashSet guaranteed to be identical for every identical set of elements added, irrespective of the order in which they were added?

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• Reading all compile errors in Windows command-line?

  - by ArdillaRoja

  Noob question, apologies. I'm compiling Java in Windows Vista's command-line and have so many syntax errors that some are being pushed off the top (a lot of 'class, interface or enum expected' errors which leads me to believe it's an obvious syntax mistake early on in the code that I can't spot). Does anyone know how I could get it to display those first errors? Thanks in advance for the help.

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• BigInteger.pow(BigInteger) ?

  - by PeterW

  I'm playing with numbers in Java, and want to see how big a number I can make. It is my understanding that BigInteger can hold a number of infinite size, so long as my computer has enough Memory to hold such a number, correct? My problem is that BigInteger.pow accepts only an int, not another BigInteger, which means I can only use a number up to 2,147,483,647 as the exponent. Is it possible to use the BigInteger class as such? BigInteger.pow(BigInteger) Thanks.

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• urgent need of video watermarking codes for my college project

  - by charlie

  could anyone help us by giving the source code for video water marking using java(preferred) for our college project.its very very urgent....so plz provide us as early as possible. plz plz plz...........help us!!!!!!

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• Good use of recursivity in chess programming?

  - by JDelage

  Hi, As part of a homework assignment, I have to program a simple chess game in Java. I was thinking of taking the opportunity to experiment with recursion, and I was wondering if there's an obvious candidate in chess for recursive code? Thank you, JDelage

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• intellij icon over project files

  - by shaunhare.co.uk

  intellij has placed what look like no entry signs over my java files (red circles with a line through) searched around but cannot find why? Would anyone know please. It's a maven project if that makes a difference

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• Installed Programs/Computer Info for Web Application

  - by Ryan Gyure

  I'm currently developing a support system for a university. The system is written in PHP and I would like to be able to get a current list of software and basic computer information on a computer. Basically when one of the faculty or staff creates a ticket from our web interface, I would like to have a Java Applet or similar that could be run and would return the information to the help desk PHP script. Does something like this exist?

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• Get length of bits used in int

  - by sigvardsen

  If you have the binary number 10110 how can I get it to return 11111? e.g a new binary number that sets all bits to 1 after the first 1, there are some likewise examples listed below: 101 should return 111 (3 bit length) 011 should return 11 (2 bit length) 11100 should be return 11111 (5 bit length) 101010101 should return 111111111 (9 bit length) How can this be obtained the easiest way in Java? I could come up with some methods but they are not very "pretty".

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• Hibernate tool to create basic mappings based on a mysql db

  - by Blankman

  Are there any tools that can look at a database, and generate the basic mapping files? It would be great if it could take a database, and create the actual model (java classes) with annotations, but not sure if that exists?

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• Why it cannot find getInputStream?

  - by Roman

  I have this code: ServerSocket serverSideSocket = new ServerSocket(1234); serverSideSocket.accept(); BufferedReader in = new BufferedReader(new InputStreamReader(serverSideSocket.getInputStream())); And compiler writes me that it cannot find "getInputStream". I do not understand why. In the beginning of my code I do import java.net.*.

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• How do I get the commandline that started the process

  - by aksamit

  From Java, is it possible to get the complete commandline with all arguments that started the application? System.getEnv() and System.getProperties() do not appear to contain the values.

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• What should I learn first, Spring or Hibernate?

  - by mamamambo

  Hi guys, I've just started learning Struts and I'm trying to be marketable for a good job as a Java programmer. My next decision would be choosing which to learn next, Spring or Hibernate? Also do you guys have any suggestions or tips for me to be good? Thanks in advance!

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• scroll/search JList when user starts typing

  - by alex

  I would like to implement one of the fanciest features I every now and then. I would like to allow a user to click on a JList and if words are typed, do a query and advance the caret to the next match (prefix). Is there and example of such an implementation in Java somewhere? I'm thinking a combination of key listeners, getNextMatch() and setSelectValue().

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• What tech needed to run JSP and Servlets?

  - by Mike

  If I want to build a site with PHP, all I have to do is install the PHP package and make sure mod_php is enabled in my apache web server. Voila! a PHP environment. Now, if I want to build a site with equivalent Java tech, i.e. JSP and Servlets, What do I have to install?

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