创建抽象类或匿名类的实例 [英] Creating the instance of abstract class or anonymous class

问题描述

这个代码在这里是创建抽象类还是匿名类的对象呢？
请告诉我这里有点混乱。

what about this code here it's creating the object of abstract class or anonymous class? please tell me i am little bit confuse here.

public abstract class AbstractDemo {

    abstract void showMessage();
    abstract int add(int x,int y);

    public int mul(int x,int y){
        return x+y;
    }


    public static void main(String[] args) {
        AbstractDemo ad = new AbstractDemo() {

            @Override
            void showMessage() {
                // TODO Auto-generated method stub

            }

            @Override
            int add(int x, int y) {
                // TODO Auto-generated method stub
                return 0;
            }
        };

        System.out.println(ad.mul(10, 12));
        System.out.println(ad.getClass());
    }

}

推荐答案

您创建了扩展您的抽象类的匿名类。

You create an anonymous class that extends your abstract class.

new AbstractDemo() {
    @Override
    void showMessage() {
        // TODO Auto-generated method stub
    }

    @Override
    int add(int x, int y) {
        // TODO Auto-generated method stub
        return 0;
    }
};

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