CS++ Java IDE vs Inteljava IQ

CS++ Java IDE lets users write and run Java in a browser without installing a JDK. Its custom interpreter handles most of Java and core standard-library features, including classes, generics, collections, lambdas, and streams. A step-through debugger and clear error messages are included for beginners. The runtime does not support threads, writing files, reflection, enums, records, or switch expressions. The browser IDE works on Chromebooks, iPads, phones, Macs, and Windows PCs, including locked-down school devices. Users can begin without an account; signing in is optional and adds cloud saving across devices. Teachers can share starter code and worked examples by link, and use the IDE for demonstrations and homework. It is aimed at beginners and AP Computer Science A students, with supported topics extending beyond the exam to generics, collections, lambdas, and streams. The free plan supports writing, running, and auto-testing Java in a browser without signup to start. The listed pricing note says paid access starts at $9.99, though no paid plan details are provided here.

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.