抽象输出面积System输出提示错误

Question

package xiaochengxu;

import java.util.Scanner;

public class mianjizhengfangxing extends mianji1 {

Scanner zhengfangxing=new Scanner(System.in);

System.out.print("请输入正方形的长：");

int chang=zhengfangxing.nextInt();

System.out.print("请输入正方形的宽：");

int kuan=zhengfangxing.nextInt();

@Override

public  void mianji() {

// TODO Auto-generated method stub

int mianji=chang*kuan;

System.out.println("正方形的面积为"+mianji);

}

@Override

public  void zhouchang() {

// TODO Auto-generated method stub

int zhouchang=(chang+kuan)*2;

System.out.println("正方形的面积为"+zhouchang);

}

}

Answer 1

你好歹把错误提示显示出来啊