package com.company;
import java.util.Scanner;
public class Demo02 {
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
System.out.println("请输入计算机基础成绩：");
int score1 = scanner.nextInt();
System.out.println("请输入java的成绩：");
int score2 = scanner.nextInt();
System.out.println("请输入mysql的成绩：");
int score3 = scanner.nextInt();
int different = score1-score2 ;
System.out.println("请输入基础与java之间的成绩差：" + different);
double avg = (score1+score2+score3) /3;
System.out.println("平均成绩为"+ avg);
}
}
