import java.util.Scanner;
public class DateFormat {
public static void main(String args) {

int mm;
Scanner sc=new Scanner(System.in);
System.out.println("enter month");
mm=sc.nextInt();

switch (mm) {
case 01:
System.out.println("The month is January");
break;
case 02:
System.out.println("The month is February");
break;
case 03:
System.out.println("The month is March");
break;
case 04:
System.out.println("The month is April");
break;
case 05:
System.out.println("The month is May");
break;
case 06:
System.out.println("The month is June");
break;
case 07:
System.out.println("The month is July");
break;
case 08:
System.out.println("The month is August");
break;
case 09:
System.out.println("The month is September");
break;
case 10:
System.out.println("The month is October");
break;
case 11:
System.out.println("The month is November");
break;
case 12:
System.out.println("The month is December");
break;

default:
System.out.println("Please enter 1-12 month");
break;
}

}}

הבעיה עכשיו שמ-08 עד 12 זה נותן לי שגיאה כי המספר הוא ליטרל. ואני בכלל לא מעוניין להשתמש בליטרל.

מה עושים?