swich

public class Switch01 {//Switch문 
  public static void main(String[] args){
    java.util.Scanner input=
        new java.util.Scanner(System.in);
    System.out.print("정수 입력 : ");
    int a = input.nextInt();
    switch(a){
    case 9 : System.out.println("A ");break;
    case 8 : System.out.println("B ");break;
    case 7 : System.out.println("C ");break;
    case 6 : System.out.println("D ");break;
    default : System.out.println("F ");//마지막엔 쓸필요없음
    //break가 없으면 순차적으로 다른것도 실행됨
    }
  }
}

public class FlowEx11 {//switch로 학점
  public static void main(String[] args){
    int score = 88;
    char grade = ' ';//공백
    
    switch(score/10){ //0~100 -> 0~10
    case 10:
      //grade='A';break;생략
    case 9 :
      grade='A';break;
    case 8 :
      grade='B';break;
    case 7 :
      grade='C';break;
    case 6 :
      grade='D';break;
    default :
      grade='F';
    }
    System.out.println("당신의 학점은" + grade + "입니다.");
  }
}