java策略 Strategy

最新推荐文章于 2020-06-19 10:52:17 发布

Lune_solitair

最新推荐文章于 2020-06-19 10:52:17 发布

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分类专栏： java 文章标签： strategy

本文链接：https://blog.youkuaiyun.com/Lune_solitair/article/details/81673014

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public interface Animal {
    void bark();
}

public class Cat implements Animal{
    @Override
    public void bark() {
        System.out.println("miao...");
    }
}

public class Dog implements Animal{
    @Override
    public void bark() {
        System.out.println("wang...");
    }
}

public class Context {

    private Animal animal;

    public Context(Animal animal){
        this.animal = animal;
    }

    public void bark(){
        animal.bark();
    }

    public static void main(String[] args) {
        Context context;
        context = new Context(new Dog());
        context.bark();
        context = new Context(new Cat());
        context.bark();
    }
}