Eclipse

Eclipse, for most people who use it, is an Integrated Development Environments ( IDE ). Although it is well-known as a Java IDE , it can be used as an IDE for other languages. 
 Features 
 (Note: These features applies to Eclipse + JDT . Features for other languages may vary.) 
 
 Code completion – Shows a list of properties and methods when you type in an object’s name 
 Automatic error checking – Highlights compilation errors and warnings 
 Automatic compilation – Compiles the program as soon as you save 
 Built-in CVS support – checkout, update and commit functions can be done in the IDE 
 
 
 Shortcuts 
 
 Code completion (ctrl-space) 
 Quick comments – toggle comments on several lines using ‘//’. (ctrl-/) 
 Delete line (ctrl-d) 
 Goto Line number (ctrl-l as in line) 
 
 System requirement 
 
 No installation necessary – just decompress the files 
 You need Java Runtime Environment ( JRE ) installed to start Eclipse. If you want to compile Java in it, then you need Java Development Kit ( JDK ) installed. 
 Eclipse platform (not SDK ) and JDT together takes about 40 MB of disk space. More will be used if you install other plug-ins. 
 
 Commonly used Plugins 
 
 
 JDT – Java support 
 
 EPIC – Perl support 
 
 Subclipse – Subversion ( SVN ) support 
 
 Other Info 
 
 An introduction to Eclipse for Visual Studio users