IntelliJ IDEA - a intelligent IDE for Java and other technologies

IntelliJ IDEA is a intelligent IDE for Java and other technologies with an exceptional out-of-the-box feature set

Link: http://www.jetbrains.com/idea/

• IntelliJ IDEA Ultimate is the full-featured commercial IDE — with a complete set of tools and integrations with the most important modern technologies and frameworks, such as Spring and Hibernate — a must-have for effective Web and Java EE development.
• IntelliJ IDEA Community Edition is the open source version of IntelliJ IDEA, a premier IDE for Java, Groovy and other programming languages.

IntelliJ IDEA 12 is Available for Download, include ANDROID UI DESIGNER and JAVA 8 supported now. What's New in IntelliJ IDEA 12?