Beginner as for help

Question

Hi, I'm new to this forum as well as programming.
1) I'm using JBuilder 6 to run Java applications, but do you run applications from MSDOS's command line ?
2)How can I print these patterns with some nested 'for' structures in Java :
*

Answer 1

1. You can run applications from an MS-DOS prompt, and you would do so by opening the prompt, navigating to the directory with your class file (assuming it's not in a package, you'll know if you've put it in a package), and typing "java MyProg" without the quotes. I find it easier to make a batch file though.
2. public class quickTest
  public static void main( String[] args )
     for (int i = 8 ; i > 0 ; i--)
       for (int j = 0 ; j<i ; j++)
         System.out.print("*");
       System.out.println("");
}