// from Lecture Notes 14 
// http://silo.cs.indiana.edu:8346/c212/sum2016/exam02/0713a.phps

public class Drunkard {
  private int x, y; 
  public Drunkard() { // places the Drunkard in the origin
    this(0, 0); // just another way to place the Drunkard in the origin
  }
  public Drunkard(int x, int y) {
    super(); 
    this.x = x; 
    this.y = y; 
  } 
  public void move() {
    int direction = (int) (Math.random() * 4); // 0, 1, 2, 3
    if (direction == 0) { // go north (up) 
      this.y -= 1; 
    } else if (direction == 1) { // go east (right) 
      this.x += 1; 
    } else if (direction == 2) { // go south (down)
      this.y += 1; 
    } else if (direction == 3) { // go west (right) 
      this.x -= 1; 
    } else {
      System.out.println( "Whoa, can't be!" ); 
      // can we do something more spectacular here
    }
  }   
  public String toString() {
    return "Hiccup: (" + this.x + ", " + this.y + ")"; 
  }
  public static void main(String[] args) {
    Drunkard a = new Drunkard(4, 5); 
    for (int i = 0; i < 100; i++) {
      a.move(); 
      System.out.println( a ); 
    } 
  }
}