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  • Creating a simple java hash server

    - by Blankman
    Is it possible to create a simple server in Java that returns a response based on a given key? So it would be a simple program, that stores a hashmap and returns the result based on a key provided by the client. What would be the fasted implementation, to have it over HTTP or a socket? The client will be a web based application.

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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 - 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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  • 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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  • 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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  • Extending a Java Swing class in Clojure

    - by mikera
    I'm trying to extend a Java Swing component in Clojure, i.e. I want to extend a javax.swing.JComponent and add some custom methods implemented in pure Clojure in addition to all the standard inherited methods. I've tried using "proxy" which works great if I just want a single instance (in the same way as an anonymous inner class). However I'd really like a named class so that I can generate an arbitrary number of instances. What's the recommended way of doing this?

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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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  • 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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  • Manually Increasing the Amount of CPU a Java Application Uses

    - by SkylineAddict
    I've just made a program with Eclipse that takes a really long time to execute. It's taking even longer because it's loading my CPU to 25% only (I'm assuming that is because I'm using a quad-core and the program is only using one core). Is there any way to make the program use all 4 cores to max it out? Java is supposed to be natively multi-threaded, so I don't understand why it would only use 25%.

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  • Java: Check if file is already open

    - by hello_world_infinity
    I need to write a custom batch File renamer. I've got the bulk of it done except I can't figure out how to check if a file is already open. I'm just using the java.io.File package and there is a canWrite() method but that doesn't seem to test if the file is in use by another program. Any ideas on how I can make this work?

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  • Speeding up Math calculations in Java

    - by Simon
    I have a neural network written in Java which uses a sigmoid transfer function defined as follows: private static double sigmoid(double x) { return 1 / (1 + Math.exp(-x)); } and this is called many times during training and computation using the network. Is there any way of speeding this up? It's not that it's slow, it's just that it is used a lot, so a small optimisation here would be a big overall gain.

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  • Getting started with parser in java code

    - by giri
    Hi I am noob to parsers.I like to fetch specific data from a website I need to use parsers for that. Can anybody please tel me how to get started with parsers.What do I need to download? Can anybody the code to fetch the data from a website using parsers in java. Thanks in advance.

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