package hanoi;

public class Hanoi2 
{
    /* Recursive procedure to move the disk at a height
       from one pin to another pin using a third pin. */
    private void moveTower(int height, int fromPin, int toPin, int usingPin)
    {
        if (height > 0) {
            this.moveTower(height-1, fromPin, usingPin, toPin);
            this.moveDisk(fromPin, toPin);
            this.moveTower(height-1, usingPin, toPin, fromPin);
        }
    }
    
    /* Move a disk from a pin to another pin.
       Print the results in the console window. */
    private void moveDisk(int fromPin, int toPin)
    {
        System.out.println(fromPin + " -> " + toPin);
    }
    
    /* Main: Create the object and
       invoke the moveTower method. */
    public static void main(String args[])
    {
        (new Hanoi2()).moveTower(3, 1, 3, 2);
    }
}