public static void q2()

{

Scanner scan = new Scanner(System.in);

System.out.print("점수를 입력하세요 : ");

int sr = scan.nextInt();

String sc = "";

if (0~100); 

  {

if (sr >= 90 && sr <= 100) sc ="A";

else if (sr >= 80 && sr <= 89) sc ="B";

else if (sr >= 70 && sr <= 79) sc ="C";

else if (sr >= 60 && sr <= 69) sc ="D";

else if (sr >= 0 && sr <= 59) sc = "F";

System.out.printf("점수는 %d 점이며 등급은 %s입니다\r\n",sr,sc);

} else {

System.out.println("0~100까지만 입력해주세요.");

}