package Gof.Strategy;

public abstract class Duck {

FlyBehavior flyBehavior;

QuackBehavior quackBehavior;

public Duck(){

}

public abstract void display();//显示鸭子信息

public void quack() {

System.out.println("鸭子嘎嘎叫~~");

}

public void swim() {

System.out.println("鸭子会游泳~~");

}

public void fly() {

//改进

if(flyBehavior != null) {

flyBehavior.fly();

}

}

public void setFlyBehavior(FlyBehavior flyBehavior) {

this.flyBehavior = flyBehavior;

}

public void setQuackBehavior(QuackBehavior quackBehavior) {

this.quackBehavior = quackBehavior;

}

}