DrJava vs Inteljava IQ

DrJava is a free, open-source development environment for writing Java programs, designed primarily for students. Its intelligent editor supports coding, while the Interactions pane lets users evaluate Java code interactively. The environment includes JUnit testing, a source-level debugger and Javadoc generation for source files. It runs on Windows, macOS and Linux under a standard BSD open-source license. The current beta is compatible with Java 8, identified by the project page as the only supported version of traditional Java. That beta is distributed only as a JAR, which the page says is intended to reduce cross-platform compatibility issues. The Eclipse plugin is described as very old and compatible only with Eclipse versions from the same era. The Linux FAQ reports an incompatibility with the Compiz window manager and recommends disabling Compiz if it occurs. Bug reports and feature requests require a SourceForge account login. The Free plan costs nothing, with no free trial listed.

Inteljava IQ is a Windows IDE for Java and other JVM development, with additional tools for web and enterprise work. After it indexes source code, it provides code completion, analysis during coding, and refactoring. Smart completion proposes types suited to the current context, while language assistance covers SQL, JPQL, HTML, and JavaScript, including expressions within Java string literals. Built-in tools include build and version-control tools, a decompiler, coverage, and database tools with SQL. Listed JVM languages include Java, Scala, Groovy, and Kotlin; named frameworks include Spring, Java EE, GWT/Vaadin, JBoss, Play, and Grails. The Community edition is for JVM and Android development and is open-source under Apache 2.0. Ultimate is for web and enterprise development under a commercial license. A free trial is available. Both download buttons are labeled .exe.