if-else小练习（成绩划分）

package com.zhidi.test;

import java.util.Scanner;

public class Ifelse {
public static void main(String[] args){
System.out.println(“请输入成绩：”);
Scanner sc=new Scanner(System.in);
//String str=sc.next();
int a=sc.nextInt();
if(a>=90 && a<100){
System.out.println(“优”);
}else if(a>=80&&a<90){
System.out.println(“良”);
}else if(a>=60&&a<80){
System.out.println(“中”);
}else if(a<60&&a>=0){
System.out.println(“差”);
}else{
System.out.println(“成绩输入错误”);
}
}

}