DrJava is an integrated Java development environment that supports interactive evaluation of expressions. It is available for free, and it is available under an open source license (GPL).
- If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences app. See 'Note for Users of OS X that Include Apple Java 6 Plug-in'. There can be multiple JDKs installed on a system, as many as you wish.
- DrJava is an integrated Java development environment that supports interactive evaluation of expressions. It is available for free, and it is available under an open source license (GPL).
DrJava 20140826 r5761 LATEST
Mac OS X
Author / Product:
JavaPLT group / DrJava for Mac
DrJava for Mac 2020 full offline installer setup for Mac
Install Java On Mac
DrJava requires a Java 2 v1.4 or later virtual machine. (Note: The JDK, not the JRE, must be installed to have access to compilation in the app.) If you need to download a JVM, we recommend Sun's JDK 5.0 for Solaris, Linux and Windows. Other users should use the Java virtual machine that comes with their operating system (including macOS).
Also, DrJava for macOS uses two Java Virtual Machines (one for the main program, and one for the Interactions Pane) that use Java's Remote Method Invocation (RMI) to communicate with each other. RMI uses TCP/IP as the default transport mechanism, so you must have those drivers installed. Without TCP/IP, Dr Java will not start properly.
Also Available: Download DrJava for Windows