ｊａｖａ中的继承

package com.test;


public class Test{

public static void main(String[] args) {
new Dervied();
}

}


class Dervied extends Base {


    private String name = "dervied";


    public Dervied() {
        tellName();
        printName();
    }
    
    public void tellName() {
        System.out.println("Dervied tell name: " + name);
    }
    
    public void printName() {
        System.out.println("Dervied print name: " + name);
    }
}


class Base {
    
    private String name = "base";


    public Base() {
        tellName();
        printName();
    }
    
    public void tellName() {
        System.out.println("Base tell name: " + name);
    }
    
    public void printName() {
        System.out.println("Base print name: " + name);
    }

}

输出结果：

Dervied tell name: null
Dervied print name: null
Dervied tell name: dervied
Dervied print name: dervied