line.java

java与模式 一书的源码

package com.javapatterns.command.drawapplet;

import java.awt.Point;
import java.awt.Graphics;

public class Line {
   private Point  start;
   private Point  end;

   public Line( Point startPos, Point endPos ) {
      start = startPos;
      end = endPos;
   }

   public void paint( Graphics graphics ) {
      graphics.drawLine( start.x, start.y, end.x, end.y );
   }
}