state

package state;

public interface State
{
public void operation();
}

package state;

public class StateOne implements State {

public void operation()
{
System.out.println("出门遇到西施，好好的亲热一番！");
}

}


package state;

public class StateTwo implements State
{

public void operation()
{
System.out.println("出门遇到东施，好好的被亲热一番！");
}

}


package state;

public class Man
{
private State state;
public Man(State state)
{
this.state = state;
}
public void setState(State state)
{
this.state = state;
}
public void operation()
{
state.operation();
}
}



package state;

public class Test
{
public static void main(String[] args)
{
Man man = new Man(new StateOne());
man.operation();
man.setState(new StateTwo());
man.operation();
}

}
/*
* 状态模式主要是处理太多的if else 语句,一个对象的行为的是根据其状态的不同而不同，有点类似
* 与策略模式，但是策略模式算法驱动，而状态模式是状态驱动，归结到底就是为了易维护
*/