Java: The MyPoint class

package chapter10_10_4;

/**
 *
 * @author Siavash Bakhshi
 */
public class Chapter10_10_4 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        //Create a point with x1 & y1
        MyPoint MyPoint1 = new MyPoint();
        System.out.println("Distance betweenn point (" + MyPoint1.getX() +","+ MyPoint1.getY() + ") and point (10,30.5) is: n" + MyPoint1.distance(10,30.5));
        // if you want to use setX or setY functions to change values
       // MyPoint MyPoint2 = new MyPoint(10, 30.5);
       // System.out.println("Distance between point " + MyPoint2.getX() + " and point " + MyPoint2.getY() + " is " + MyPoint2.distance());
    }
}

        /** Construct a point with x & y */
        class MyPoint {
        double x;
        double y;
        
        /** Construct a point with a default constructor */
        MyPoint() {
          this.x = 0;
          this.y = 0;
        }        
        
        /** Construct a point with a specified x & y */
        MyPoint(double x, double y) {
          this.x = x;
          this.y = y;
        }        
        
        /** Return x */
        double getX() {
          return x;
        }

        /** Set a new x */
        void setX(double x) {
          this.x = x;
        }

        /** Return y */
        double getY() {
          return y;
        }

        /** Set a new y */
        void setY(double y) {
          this.y = y;
        }
        /** Return the distance between this point & specified */
        //double distance() {
        //return Math.sqrt((this.x-x2)*(this.x-x2) + (this.y-y2)*(this.y-y2));
        //}
        /** Return the distance between this point & specified */
        double distance(double x2, double y2) {
        return Math.sqrt((this.x-x2)*(this.x-x2) + (this.y-y2)*(this.y-y2));
        }
    }