面向对象编程--两个有趣的例子

来源：互联网发布：上海软件评测中心编辑：程序博客网时间：2024/04/27 13:47

package demo1;public class Description {/** * 描叙： * 一个球，从一根绳子的一段滚到另一端 */}

package demo1;import java.awt.Point;public class Rope {private Point start;//起点private Point end;//终点public Point nextPoint(Point currentPoint){/** * 计算获得下一个位子 */return new Point();}}

package demo1;import java.awt.Point;public class Ball {private Point current; //现在的位置private Rope rope;public void move(Rope rope,Point current){current = rope.nextPoint(current);System.out.println("小球移动到："+current);}}

package demo2;public class Description {/** * 描叙： * 两块石头，制成一把石刀，石刀砍树得到木材，木材做成椅子 */}

package demo2;public class Stone {/** * 石头 */}package demo2;public class StoneKnife {/** * 石刀 */public Wood cut(Tree tree){/** * 得到木材 */return new Wood();}}package demo2;public class Tree {/** * 树 */}package demo2;public class Wood {/** * 木材 */}package demo2;public class Chair {/** * 椅子 */Wood wood;ChairFactory chairFactory = new ChairFactory();Chair chair = chairFactory.makeChair(wood);}package demo2;public class KnifeFactory {/** * 石刀生产工厂 */public StoneKnife creatKnife(Stone stone1,Stone stone2){return new StoneKnife();}}package demo2;public class ChairFactory {/** * 椅子生产工厂 */public Chair makeChair(Wood wood){return new Chair();}}

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