| 1. | Get system properties using System class | | |
| 2. | Get Java specification version using System class | | |
| 3. | Display System Properties | |  |
| 4. | Use System.getenv to get environment variables | | |
| 5. | Machine User Name | |  |
| 6. | Get username of system current user | | |
| 7. | Check Version | | |
| 8. | Get Java Runtime Environment (JRE) version? | | |
| 9. | Clear system property: The System.clearProperty() method available in Java 1.5 | | |
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| 10. | Dealing with the Java environment | | |
| 11. | Get operating system temporary directory / folder | | |
| 12. | List one or more item(s) from System Properties | | |
| 13. | System.setProperty("apple.laf.useScreenMenuBar", "true") | | |
| 14. | Get Java Home directory | | |
| 15. | Determine operating system using System class | | |
| 16. | Setting the Value of a System Property from the Command Line: add -D option to the java command when running your program. | | |
| 17. | Get path / classpath separator | | |
| 18. | Get file separator symbol | | |
| 19. | Get operating system name and version | | |
| 20. | Get user home directory name | | |
| 21. | Set a system property | | |
| 22. | Dump Props | |  |
| 23. | Get Environment Variables | | |
| 24. | This program prints out all system properties | | |