Java基础作业之成绩等级划分

 

import java.util.*;
public class Grade2
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("请输入学生成绩：");
int a = sc.nextInt();
switch(a/10)
{

case 1:
case 2:
case 3:
case 4:
case 5:System.out.println("D");
break;
case 6:
System.out.println("C");
break;
case 7:
System.out.println("B");
break;
case 9:
case 10:
System.out.println("A");
break;
default:
if(a > 84)
System.out.println("A");
else if(a>70)
System.out.println("B");

break;

}
}
}