hdu_2004 成绩转换

import java.util.Scanner;

public class Main {
public static void main(String[] agrs){
Scanner scan = new Scanner(System.in);
while (scan.hasNext()){
int score = scan.nextInt();

if (score < 0 || score > 100) {
System.out.println("Score is error!");
}
else switch (score / 10){
case 0:
case 1:
case 2:
case 3:
case 4:
case 5: System.out.println("E");break;
case 6: System.out.println("D");break;
case 7: System.out.println("C");break;
case 8: System.out.println("B");break;
case 9:
case 10: System.out.println("A");break;
}
}
}
}