An extremely popular alternative to Eclipse and NetBeans, IntelliJ IDEA is according to many programmers, the best IDE available. While Eclipse and NetBeans are quite similar to each other, JetBrains IntelliJ IDEA offers a unique experience to the developer.
In my personal experience, after years of using Eclipse and NetBeans, when I migrated to IntelliJ IDEA, at first it was a little challenging. However, within a matter of days, I could experience productivity enhancements in my own work. Now it has been a while since I migrated to IntelliJ IDEA and I'm as strong an advocate as any for JetBrains IntelliJ IDEA.
Originating back in 2001, it was the pioneer of popular features now taken for granted, including code navigation and re-factoring. It is now available as commercial software and also as a free, open source community software. According to Wikipedia:
"JetBrains is a Czech software development company with offices in Prague, Czech Republic...