I have develop android application,there I have Exit button in menu option.I want exit application and go to home screen when I press exit button. for that I have used 
following methods

1.`System.exit(0)`

2.`finish()`

3.`android.os.Process.killProcess(android.os.Process.myPid())`

4.`System.runFinalizersOnExit(true);`

these all methods direct to application my first page not to home screen.so what should I do for this?? please help me