JOptionPane hackery

JOptionPane.java

public class JOptionPane {
  	/**
	 * input is essentially the same array as args
	 */
	private static String[] input;
	
	/**
	 * ctr is the index of the value we want from args
	 * it starts at 0 and is incremented every time showInputDialog is called
	 */
	private static int ctr = 0;
	
	/**
	 * returns the user's input string (the successive values of args)
	 * @param message the message that would be displayed if an input box were to be opened
	 * @return the "user"'s input string
	 * @precondition setArgs must have already been called
	 */
	public static String showInputDialog(String message) {
		//increment the counter that determines which input value to return
		ctr ++;
		
		//if there's nothing in the input/args array, return an error message
		if (input.length == 0)
			return "first call the method setArgs";
		
		//if the counter is larger than the number of input values, return the last input value
		if (ctr > input.length)
			return input[input.length - 1];
		
		//return the appropriate input value for the number of times showMessageDialog has been called
		return input[ctr - 1];
	}
	
	/**
	 * sets the class's input array instance variable to the array passed (args)
	 * @param args the array to get input values from
	 */
	public static void setArgs(String[] args) {
		//set the input array to args
		input = args;
	}
}