Eclipse

software program

is an open source community whose projects are focused on providing an extensible development platform and application frameworks for building software. Eclipse provides extensible tools and frameworks that span the software development lifecycle, including support for modeling, language development environments for Java, C/C++ and others, testing and performance, business intelligence, rich client applications and embedded development.
http://www.eclipse.org/
Eclipseではじめるプログラミング（1）　
http://www.atmarkit.co.jp/fjava/rensai3/eclipsejava01/eclipse01.html
The CDT (C/C++ Development Tools)
http://www.eclipse.org/cdt/
http://www-06.ibm.com/jp/developerworks/opensource/030620/j_os-ecc.html