/**
 *
 *	The class models the X & Y coordinates on a Cartesian plane: 
 *	the internal representation (the measurement stored in the 
 *	private data members) is in integers.
 *	
 *	Name:
 *	Course:
 *	Section: 
 *  Last Modified:
 *  Known Bugs:
 */

import java.io.*;

public class Point {

		/**
		 *	instance variables
		 */
	private int myX, myY;
	

		/**
		 *	sets the default values of the Point object to 0, 0
		 */

	public Point()  {
	
       myX = 0; myY = 0;


	
	}
	
		/**
		 *	sets the value of the Point object to the value of the
		 *	X and Y parameters (which are ints)
		 *	
		 *	@param int 			X value in the object
		 *	@param int 			Y value in the object
		 */


	public Point(int X, int Y)  {
	
        myX = X; myY = Y;


	}

		/**
		 *	sets the value of the Point object to the value of the
		 *	X and Y parameters (which are Strings)
		 *	
		 *	@param int 			X value in the object
		 *	@param int 			Y value in the object
		 */

	public void set(String X, String Y)  {
	
         myX = Integer.parseInt(X); 
         myY = Integer.parseInt(Y); 


	}
	
		/**
		 *	to be used for debugging or by other methods
		 *	
		 *	@return   internal representation of the X value
		 *
		 *	
		 */
	
	public int getX() {
	

		return myX;

	}

		/**
		 *	to be used for debugging or by other methods
		 *	
		 *	@return   internal representation of the Y value
		 *
		 *	
		 */
	
	public int getY() {
	
		return myY;
	}

		/**
		 *	adds the x, y values of the passed object to the x, y values 
		 *	respectively of the Point object that invoked the method 
		 *	
		 *	
		 *	@param Point 		another Point object
		 *	@return Point		object with the total new coordinates
		 *		
		 */
	
	public Point add(Point other) {
	    Point P = new Point();
	    P.myX = myX + other.myX;
	    P.myY = myY + other.myY;
		return P;	
	}
	
		/**
		 *	determines the distance between the x, y values of the passed 
		 *	object to the x, y values respectively of the Point object 
		 *	that invoked the method <br>
		 *	<br>
		 *	Uses the distance function:<br>
		 *		<b>distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)</b>
		 *	
		 *	
		 *	@param Point 		another Point object
		 *	@return double 		distance between the two Point objects
		 *		
		 */
	
	public double distance(Point other) {
	   double d = Math.sqrt(Math.pow((myX - other.myX), 2)+Math.pow((myY - other.myY), 2));
	   return d;	
	}
	
		/**
		 *	return a string with an external representation (X and
		 *	Y) of the values of the Point object. The format
		 *	for this output is X = xx, Y = yy (where xx is the x value
		 *	and yy is the y value). 
		 *	
		 *	@return String
		 */
		
	public String toString() {
		String S = "X = " + myX + ", Y = " + myY;	
		return S;
	}

}