Is IntelliJ based on Eclipse?

Related questions

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2. Is IntelliJ free for commercial use?
3. Is IntelliJ idea free?
4. Can I use Visual Studio community for commercial purposes?
5. Which is better between NetBeans and Eclipse?
6. Which is better IntelliJ or NetBeans?
7. Does IntelliJ idea Ultimate include WebStorm?
8. What languages does IntelliJ idea support?
9. Is JetBrains Russian?
10. Is IntelliJ open source?

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2. #commercial
3. #environment
4. #formerly
5. #edition
6. #available
7. #integrated
8. #developed
9. #development
10. #developing
11. #licensed
12. #proprietary
13. #jetbrains
14. #intellij
15. #known
16. #computer
17. #apache
18. #community