When should I use JRE and JDK?

Related questions

1. Should you have Java on your computer?
2. Is JRE needed for JDK?
3. Does Java update require restart?
4. Is Java paid version?

Tags

1. #tools
2. #things
3. #command
4. #compilers
5. #compiled
6. #useful
7. #development
8. #applications
9. #includes
10. #debuggers
11. #applets
12. #developing
13. #necessary