设计模式_JAVA_策略模式

来源：互联网发布：java开发框架编辑：程序博客网时间：2024/06/06 11:00

声明：代码由辅导老师（廖老师）提供

public class MainTest {public static void main(String[] args) {Person p = new Person( "老王" );TravelStategy stategy = new SwimStrategy();  //指明是哪一种策略p.setTravelStategy( stategy );p.doTtravel();}} interface TravelStategy {public void travel();} class AirStrategy implements TravelStategy {public void travel() {System.out.println( "坐飞机出行! " );}} class SwimStrategy implements TravelStategy {public void travel() {System.out.println( "游泳出行! " );}} class Person {String name;TravelStategy stategy = null;public Person( String name ){this.name = name;}//设置旅游出行的方式public void setTravelStategy( TravelStategy stategy ){this.stategy = stategy;}//旅游public void doTtravel(){if( stategy==null )System.out.println( "你还没设置旅游的方式" );elsestategy.travel();}}

结构：

主类：

接口：

旅行方式类两个（坐飞机，游泳）

人这个类

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