[John]

im pretty new to java but for an input box i woud do something like this...

UserInput = new javax.swing.JOptionPane().showInputDialog("Enter a value");

and since the input is a String use, you need to convert it to int inorder to perform mathamatical operations on it, so possable something like

x = Integer.parseInt( UserInput );

then just use a for loop to do the iterations

but i know very little regarding java so dont quote me