显示错误？？
public class HelloWorld {public static void main(String[] args){
Scanner in=new Scanner(System.in);
String grade=in.nextLine();
System.out.println("Your Score:");
switch(grade){
case "A":System.out.printf("85~100\n");break;
case "B":System.out.printf("70~84\n");break;
case "c":System.out.printf("60~69\n");break;
case "D":System.out.printf("<60\n");break;
default:System.out.printf("entwe data ettor !\n");
}
}
}
