JDeveloper is recommended for teams and organizations that are heavily invested in Oracle products or need to develop enterprise applications that leverage Oracle's ecosystem, especially those that plan to use Oracle ADF or require integration with Oracle Cloud services.
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.
Netbeans - NetBeans IDE 7.0. Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
BlueJ - BlueJ is an Integrated Development Environment for Java, developed mainly for educational purposes...
Xcode - Xcode is Appleโs powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
Codenvy - Cloud workspaces for development teams.