백준[Java] 9498번 시험 성적

https://www.acmicpc.net/problem/9498

9498번: 시험 성적

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문제풀이

import java.util.Scanner;
public class _9498_1 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int score = sc.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');
    }
}

• if 조건문의 기초 문제
• 삼항연산자를 사용할 수 있지만 개인적으로 가독성이 떨어진다고 생각하기 때문에 기본적인 if 조건문을 사용해 문제 해결

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문제풀이 2

import java.util.Scanner;

public class _9498_2 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int score = sc.nextInt();

        String result = (score >= 90) ? "A" : (score >= 80) ? "B": (score >= 70) ? "C" : (score >= 60) ? "D" : "F";

        System.out.println(result);
    }
}

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문제풀이 3

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class _9498_3 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int score = Integer.parseInt(br.readLine());

        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');
    }
}

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문제풀이 4

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class _9498_4 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int score = Integer.parseInt(br.readLine());

        String result = (score >= 90) ? "A" : (score >= 80) ? "B": (score >= 70) ? "C" : (score >= 60) ? "D" : "F";

        System.out.println(result);
    }
}

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