Inherit common class of java interview questions

1.
package com.duapp.itfanr;

class Atom {

	Atom() {
		System.out.println("i am atom");

	}
}

class Rock extends Atom {

	Rock() {

		System.out.println("i am Rock");
	}
}

class Moutain extends Rock {

	Moutain() {
	System.out.println("i am moutain");
	}

}

public class MainTest {

	public static void main(String[] args) {

		new Moutain();
	}

}
result:
i am atom
i am Rock
i am moutain
 

Reproduced in: https: //my.oschina.net/itfanr/blog/195709

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Origin blog.csdn.net/weixin_33859844/article/details/91799600