Java Pass by reference vs Pass by Value

public class Tester {

   public static void main(String[] args) {

      Point point = new Point();

      System.out.println("X: " +point.x + ", Y: " + point.y);

      updatePoint(point);

      System.out.println("X: " +point.x + ", Y: " + point.y);

   }

   public static void updatePoint(Point point) {

      point.x = 100;

      point.y = 100;

   }

}

class Point {

   public int x, y;

}