IntelliJ IDEA vs Java-Editor

IntelliJ IDEA is an IDE for professional Java and Kotlin development, available on Windows, macOS, and Linux. It offers context-aware completion, static analysis, and automated refactoring. The JVM debugger includes breakpoints, variable inspection, expression evaluation, and step-by-step execution. Gradle and Maven integrations cover building, packaging, testing, and deployment, while version-control support includes Git, Mercurial, Perforce, and Subversion. Users can process GitHub pull requests in the IDE, and plugins from JetBrains Marketplace add support for other languages, frameworks, and technologies. Core Java and Kotlin functionality remains free after the included 30-day Ultimate trial ends. The Ultimate subscription adds advanced tools and integrations and costs $100.00 for the first year, $199.00 for the second year, and $159.00 per year from the third year onward. Listed minimum hardware is a 4-core x86_64 or arm64 CPU, 8 GB total RAM, and 10 GB of disk space. Users can choose in IDE settings whether to share anonymous usage data.

Java-Editor is a Java development environment intended for teaching and home use on lower-specification computers. Its class modeler reads source files, presents classes with their attributes and methods, and transfers model edits back into source. A UML window supports interactive object creation and method or attribute testing without a main method. The GUI designer works with AWT, Swing and JavaFX components and synchronizes form changes with code. Students can make control-flow diagrams in the structogram editor, generate programs or methods, and use puzzle mode. Debugging includes breakpoints, stepwise execution, watch expressions, local variables, parameters and call-stack information. Installing Git or Subversion adds corresponding menus, while JUnit adds its own menu. LLM assistance supports OpenAI and Gemini cloud models and local models through Ollama. The program requires a Java Development Kit; JavaFX must be installed separately for JDK 11 and later. It is free for personal, commercial and government use. Classroom versions support portable USB installations, INI configuration and network-folder deployment.