strategy

package strategy;
//一个追女孩子的策略
public interface Strategy
{
public void doSometing();
}



package strategy;

public class StrategyOne implements Strategy
{

public void doSometing()
{
        System.out.println("霸王硬上弓！");
}

}



package strategy;

public class StrategyTwo implements Strategy
{

public void doSometing()
{
        System.out.println("循规蹈矩一步一步的追！");
}

}



package strategy;

public class Context
{
private Strategy strategy;//有一个策略的引用

public Context(Strategy s)//动态使用策略
{
this.strategy = s;
}

public void doing()
{
strategy.doSometing();
}
}




package strategy;

public class Test
{

public static void main(String[] args)
{
Context context = new Context(new StrategyOne());
context.doing();
Context con = new Context(new StrategyTwo());
con.doing();
}

}
/*
* 策略模式主要就是将一些相同的功能抽象出一个接口，在环境类里保存策略接口的一个引用
* 在调用的时候可以动态的调用那些策略
*/