DrJava!

A free, open-source Integrated Development Environment for software developers. You get all the tools you need to create professional desktop, enterprise, web, and mobile applications with the Java language, C/C++, and even dynamic languages such as PHP, JavaScript, Groovy, and Ruby. NetBeans IDE is easy to install and use straight out of the box and runs on many platforms including Windows, Linux, Mac OS X and Solaris.The download section conveniently offers prepackaged bundles/installers for each supported programming language containing only required plugins. »

IntelliJ IDEA is a free / commercial Java IDE by JetBrains. Its design is centered on programmer productivity. A number of its features are intended to accelerate development and allow programmers to concentrate on functionality while IntelliJ IDEA handles routine coding tasks.

BlueJ is an Integrated Development Environment for Java, developed mainly for educational purposes, but also suitable for small-scale software development. It was developed to support the learning and teaching of object-oriented programming, and its design differs from other development environments as a result.

Embitz is a free C/C++ IDE built to meet the most demanding needs of its users working in the field of embedded software development It is designed to be very extensible and fully configurable.

Integrated Java development environments set high requirements on the computer equipment.