What are some alternatives?
Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
Android Studio - Android development environment based on IntelliJ IDEA
XRebel - XRebel is a lightweight Java profiler that helps developers find and fix common problems in their application as they code.