[백준] 9498번 - 시험성적 자바 JAVA 조건문 if사용하기

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);	
		int score = s.nextInt();
		if(score>=90) {
			System.out.println("A");
		}else if(score>=80) {
			System.out.println("B");
		}else if(score>=70) {
			System.out.println("C");
		}else if(score>=60) {
			System.out.println("D");
		}else {
			System.out.println("F");
		}
	}
}