11_策略模式

package com.Higgin.Strategy;/*** 士兵接口* Strategy抽象策略角色*/
interface Soldier{public void shoot();
}/*** 狙击手类* ConcreteStrategy具体策略角色*/
class SniperSoldier implements Soldier{&＃64;Overridepublic void shoot() {System.out.println("狙击手用狙击枪射击&＃xff01;&＃xff01;&＃xff01;");}
}
/*** 侦察兵类* ConcreteStrategy具体策略角色*/
class ScoutSoldier implements Soldier{&＃64;Overridepublic void shoot() {System.out.println("侦查兵用突击步枪射击&＃xff01;&＃xff01;&＃xff01;");}
}
/*** 将军类* Context封装角色*/
class General{private Soldier soldier; //关联士兵接口public General(Soldier soldier){this.soldier&＃61;soldier;}public void command(){ //将军下令this.soldier.shoot();}
}public class TestStrategy {public static void main(String[] args) {General general;System.out.println("近距离有敌人...");general&＃61;new General(new ScoutSoldier());general.command(); //将军下令
System.out.println("&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;&＃61;");System.out.println("远距离有敌人...");general&＃61;new General(new SniperSoldier());general.command(); //将军下令
}
}