1.

package com.imooc;

public class BUS {
       public String siji;
       public int zuowei;
       public int chengke;
    
       public void Set() {
       
        System.out.println("司机姓名"+siji+"有多少座位"+zuowei+"有多少位乘客"+chengke);
        System.out.println("巴士比出租车赚钱");
       }
}

2.

package com.imooc;

public class car extends BUS {
 
         public void set() {
          System.out.println("司机姓名"+siji+"有多少座位"+zuowei+"有多少位乘客"+chengke);
          System.out.println("没毛病老铁");
         }
}

3.

package com.imooc;

public class ceshi {

 public static void main(String[] args) {
  // TODO Auto-generated method stub
  car ca =new car();
  ca.siji="老王";
  ca.zuowei=52;
  ca.chengke=99;
  ca.Set();

 }

}