Java基础利⽤switch语句输出成绩等级package work02_grade;
import java.util.Scanner;
public class Grades
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
int grade;
Scanner reader  = new  Scanner(System.in);
System.out.print("请输⼊⼀个成绩：");
grade = Int();
if(grade<0||grade>100)
{
System.out.print("输⼊出错，请重新输⼊：");
Scanner  reader1 = new Scanner(System.in);
grade = Int();
}
switch(grade/10)
{
case 10:
case 9:
System.out.print("成绩为优秀");
break;
case 8:
System.out.print("成绩为良好");
break;
case 7:
System.out.print("成绩为中等");
break;
case 6:
System.out.print("成绩为及格");
break;
default:
System.out.print("成绩不及格");
}
System.out.printf("\n");
System.out.print("学⽣成绩为："+grade);
java switch case string}
}

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