Calling the main method within main
I've got a public main method that I want to restart depending on user input. In other words I want to call "main" from within main, is this possible? Howto?
I've done this to loop instances of functions in JavaScript, but how is this done with java?
Example:
public class Anyname{
public static void main (String[] arg) {
...
if (JOptionPane.showConfirmDialog(null, "Again?", "Q:", JOptionPane.YES_NO_OPTION)==0) {
call main; // or WHAT?
} else {
System.exit(0);
}
}
}
[551 byte] By [
hagdahla] at [2007-10-3 3:18:46]
It is just a static method so you could say:main(null); or main((String[])null); or main(myStrings); or etc.However, you would be recursively calling the function just to perform a loop and in this case a BadThing(TM).Put your code in a "while" statement instead.
jbisha at 2007-7-14 21:10:35 >
You can do this, but ...
public class RedoMain {
static int i;
public static void main ( String[] argv ) throws Exception {
String[] s = null;
System.out.println("["+(++i)+"]");
if (argv[0].equals("Y"))
RedoMain.main((s = new String[] {"N"}));
}
}
first if the user types yes more time than the size of your stack, you will get a stackoverflow error
second, this is really bad programming, you need do while there
public class RedoMain {
static int i;
public static void main ( String[] argv ) throws Exception {
do{
// do main stuff here
}
while(JOptionPane.showConfirmDialog(null, "Again?", "Q:", JOptionPane.YES_NO_OPTION)==0)
}
}
dont forget to assign your duke dollars to people when your question is answered
