A simple algorithm to convert decimal numbers to binary; pointless since most languages have an inbuilt function but was used for learning about algorithm design.

Directory Utility for Ruby

By default, migrations will run on the development environment. Here's how you would specify another environment.

How to take web source code with CURL

Convert java.awt.Canvas to java.awt.image.BufferedImage

Convert InputStream to byte[]

Conexion de una base de datos de PostgreSql 8.2 a Java

Well, ruby is actually so flexible that there is no real need to implement the goode olde signals & slots metaphor. But it serves nicely as demonstration of ruby properties, so here we go.

Search file directory (recursive method) with java language

To create a chatprogram in java we need 2 classes one for Client and one for Server from which the client will be able to connect and exchange text messages. to compile the code simply type these commands in command prompt window:-
1)ipconfig(memorize the Ip address)
2)javac client.java
3)javac server.java
4)java server 10.69.23.203 (You need to type your own ip address)
5) After this you need to open another command prompt window(Make sure the server command prompt window is also open). now type:
java client 10.69.23.203
Thats it.
if anyone have any problems please post a comment and i will answer all of your questions or if you are having trouble in compiling.