java 3일차 1

조건문

 

switch1

import java.util.Scanner;

public class Condition3 {

    public static void main(String[] args) {

        String select = null;

        Scanner scanner = new Scanner(System.in);
        System.out.print("선택: ");
        select = scanner.nextLine();

        switch (select){ /* 스위치는 ()를 찾아감 select 변수명*/ /*case 하나로 통일*/

            case  "아침":
                System.out.println("아침 식사");
                break;
            case "점심" :
                System.out.println("점심 식사");
                break;
            case "저녁" :
                System.out.println("저녁 식사");
                break;
            default: /*정해진 것 외에 입력을 출력*/
                System.out.println(" 잘못된 입력입니다.");
        }
    }
}

switch2

import java.util.Scanner;

public class Condition4 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int score = 0;
        System.out.print("시험성적 입력");
        score =sc.nextInt();
        if(score <0 || score >100){
            System.out.println("잘못된 입력");
        }else {

            switch (score/10){
                case 10:
                case 9:
                    System.out.println("A학점");
                    break;
                case 8:
                    System.out.println("B학점");
                    break;
                case 7:
                    System.out.println("C학점");
                    break;
                case 6:
                    System.out.println("D학점");
                    break;
                default:
                    System.out.println("F학점");
            }
        }

    }
}