Setting Up IntelliJ IDEA / Eclipse — a practical guide to IntelliJ Eclipse Java setup with clear examples you can reuse in real projects.
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Short description
Create a project, point it to your JDK, and run a main class from the IDE.
IDE checklist
1. Install IntelliJ IDEA or Eclipse
2. Configure Project SDK (JDK)
3. Create Java project/module
4. Add Main class and Run