point.java

kaffe是一个java虚拟机的源代码。里面包含了一些java例程和标准的java包。

package java.awt;


/**
 * class Point - represent (x,y) locations
 *
 * Copyright (c) 1998
 *      Transvirtual Technologies, Inc.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file.
 *
 * @author P.C.Mehlitz
 */
public class Point implements java.io.Serializable
{
	private static final long serialVersionUID = -5276940640259749850L;
	/**
	 * @serial 
	 *  The x coordinate. If no x coordinate is set it will default to '0'.
	 */
	public int x;
	/**
	 * @serial 
	 *  The y coordinate. If no y coordinate is set it will default to '0'.
	 */
	public int y;

public Point () {
}

public Point ( Point pt ) {
	x = pt.x;
	y = pt.y;
}

public Point ( int x, int y ) {
	this.x = x;
	this.y = y;
}

public boolean equals ( Object obj ) {
	if ( obj instanceof Point ) {
		Point pt = (Point) obj;
		return (pt.x == x) && (pt.y == y);
	}
	else
		return false;
}

public Point getLocation () {
	return new Point( x, y);
}

public int hashCode () {
	return x ^ (y*31);
}

/**
 * @deprecated (I presume), use setLocation()
 */
public void move ( int xNew, int yNew ) {
	x = xNew;
	y = yNew;
}

public void setLocation ( Point pt ) {
	x = pt.x;
	y = pt.y;
}

public void setLocation ( int xNew, int yNew ) {
	x = xNew;
	y = yNew;
}

public String toString() {
	return getClass().getName() + "[x=" + x + ",y=" + y + ']';
}

public void translate ( int xDelta, int yDelta ) {
	x += xDelta;
	y += yDelta;
}
}