class L
{
    int a,b ;
    L(int a,int b)
    {
        this.a=a;
        this.b=b;
    }
   void     print()
    {
        System.out.println(a+" "+b);
    }
}
class H extends L
{
    int x,y,z;
    H(int x,int y,int z)
    {
        super(x,y);
        this.z=z;
    }
  public     void print()
    {
        System.out.println("x="+x+" "+"y="+y+" "+"z="+z);
    }
}
public class Z
{
    public static void main(String args[])
    {
        H real=new H(6,7,8);
        real.print();
    }
}
结果咋不对啊！！刚学Java，请大家帮忙看看！！！

那怎么给x，y赋值啊？

谢啦！！