men1.java

来自「学习java编程的好程序」· Java 代码 · 共 29 行

class Person
{
        int a;
        Person()
        {        
        a=1;
        }
        Person(int a)
        {
        this.a=a;
        }
}
public class men1 extends Person
{
        int b;
        men1(int a,int b)
        {
        super(a);
        this.b=b;
        }
    public static void main(String[] args)
    {
        men1 m=new men1(10,20);
        System.out.println(m.a+" "+m.b);
    }
}