少儿功夫表演:这怎么就错了!!!!

来源:百度文库 编辑:杭州交通信息网 时间:2024/04/29 04:30:55
class Ren1
{
public int x;
Ren1(int x)
{this.x=x;}
public static void draw()
{
System.out.println.("Ren1.x()");
}
}

class Ren2
{
public int y;
Ren2(int y)
{this.y=y;}
public static void draw()
{
System.out.println.("Ren2.y()");
}
}

class Ren extends Ren1
{
public int y;
Ren()
{super();}
Ren(int x,int y)
{super(x);
this.y=y;}
public static void draw()
{
System.out.println.("Ren.x()");
System.out.println.("Ren.y()");
}
}

public class UsingRen
{
public static void main (String[] args)
{ Ren r = new Ren(100,1);
system.out.println("Ren"+":"+"("+"r.x"+","+"r.y"+")");
r.draw();
}
}

Ren1也没有零参数的构造函数哇,怎么会用super();

后面的r.x r.y不用引号引上吧