Java java.lang System

Description

Click the following links for the tutorial for java.lang and System.

1. Displays an error message to the error console, and then exits with System#exit(int) .
2. get Os Type
3. Returns the path and name of the java launcher in which this program is executed.
4. get Current Working Path
5. Returns the path to the launcher which has started this application.
6. Returns the name of the launcher which has started this application.
7. get OS Name
8. Read key from Properties



9. Looks up a property, first in the environment, then the system properties.
10. Returns the system properties from System.getProperties() as a 2 dimensional array of key/name.
11. Prints the system properties as [key: name].
12. print Environment
13. print System Properties
14. This displays the table to CLI.
15. enable System.out write
16. redirect System Streams to JTextArea