StrategyTest.java

package JavaPatternDemos;

/**
 *
 * 策略模式
 *
 * 旨在对策略进行管理,封装
 * 状态的改变，或者说策略的选择一般是主观设置
 *
 *
 */

public class StrategyTest {
 public static void main(String[] args) {
 }
}



class SContext{
 private int num1 = 1;
}

class SResult{
 private int num2 = 0;
}

class StrategyManager{
 private SContext curContext;
 private SResult curResult;
 private Strategy curStrategy;

 public void setCurStrategy(Strategy curStrategy) {
 this.curStrategy = curStrategy;
 }

 public void run(){
 this.curStrategy.do_strategy(curContext);
 }
}



interface Strategy{
 // 也可以用继承
 public void do_strategy(SContext scont);
}

class GoodStrategy implements Strategy{
 @Override
 public void do_strategy(SContext scont) {
 // do something , get results
 }
}

class BadStrategy implements Strategy{
 @Override
 public void do_strategy(SContext scont) {
 // do something , get results
 }
}