这似乎是从接口创建对象；它是如何工作的? [英] This appears to create an object from an interface; how does it work?

问题描述

interface Int {
    public void show();
}

public class Test {     
    public static void main(String[] args) {
        Int t1 = new Int() {
            public void show() {
                System.out.println("message");
            }
        };

        t1.show();
    }
}

推荐答案

您正在定义一个实现接口 Int 的匿名类，并立即创建一个 thatAnonymousClassYouJustMade.

You're defining an anonymous class that implements the interface Int, and immediately creating an object of type thatAnonymousClassYouJustMade.

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