Drawing a line of asterisks based on user input - where do I start?

Question

Greetings,
I'm trying to write an application that will ask the user for a number then the program will output that number in a line of asterisks based on user input - where do I start?
I really appreciate any informaiton.

Answer 1

import javax.swing.*;
public class numbers {
     public static void main ( String args[])
          String strNumber;
          int number = 0;     
          strNumber = "";
     for (int num1 = 0; num1<=5; num1++)
               strNumber = JOptionPane.showInputDialog ("How many Asterisks do you want printed?");
               number = Integer.parseInt(strNumber);
          for(int num=0; num<number; num++) System.out.print("*");
               System.out.println("");
          System.exit(0);
                    }This compiles fine, but it just keep rewriting the same thing... Any suggestions would be greatl appreciated. Also, how would I be able to confine the number entered to under 30?
THanks