father.java

来自「java可以实现一些小程序的编写」· Java 代码 · 共 24 行

package  Pbag;

public class Father{  //去掉public ,,在包外将不能使用
    private int i=11;
    protected int x=55;
    public       int a=0;
    int   z=99;
}

class Son1 extends Father{
    void show(){
  	System.out.println("x=  "+x);
	System.out.println("a=  "+a);
	System.out.println("z=   "+z); 
    }
    public static void main(String args[]){
	Son1 son1=new Son1();
	son1.show();
	Father f=new Father();
                  System.out.println("f.x="+f.x+"  f.z="+f.z);
    }
}