Μέθοδοι καταστροφής: παράδειγμα

• class Point {
      /* Fields */
  
      /** Point x coordinate */
      private int x;
      /** Point y coordinate */
      private int y;
  
      /* Methods */
      /** Default constructor */
      Point() { x = y = 0; }
      /** Constructor with coordinates */
      Point(int x, int y) {
          this.x = x;
          this.y = y;
      }
  
      /** Point destructor */
      public void finalize() {
          System.out.println("Another point (" + this + ") bites the dust");
      }
  
      /** Convert into a string */
      @Override public String toString() {
          return "x=" + x + " y=" + y;
      }
  
      /** Test method */
      static public void main(String args[]) {
          Point a = new Point(1, 2);
          Point b = new Point(5, 8);
          a = b;
          // Force the garbage collector to run
          System.gc();
      }
  }