Along with the Java platform NetBeans IDE 7.0 supports PHP, JavaScript, Ajax and C/C++. But Hilwa noted that the new release drops support for the Ruby programming language.

News. NetBeans 7.4 Update Extends HTML 5 Support to Java EE and PHP, JDK 8 Developer Previews. By John K. Waters; October 23, 2013; Aiming to satisfy the growing demand among Java developers for ...