JAVA 实例化 父类与子类

public 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);
    }

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

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);
    }
}

大家猜一下会打印什么？

最终结果是
Dervied tell name: null
Dervied print name: null
Dervied tell name: dervied
Dervied print name: dervied