if else条件分支语句学习

成绩等级

package com.if_else;

import java.util.Scanner;

public class Score {
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入成绩： ");
        int score = scanner.nextInt();
        if(score == 100) {
            System.out.println("恭喜满分");
        }else if(score < 100 && score >= 90){
            System.out.println("A级");
        }else if(score <80 && score >= 70){
            System.out.println("C级");
        }else if(score < 70 && score >= 60){
            System.out.println("D级");
        }else if(score < 60 && score >= 0){
            System.out.println("不及格");
        }else {
            System.out.println("成绩不合法");
        }

    }
}