Datumformat2

package vs222my_assign2;

import java.util.Scanner;

public class DatumFormat3 {

    public static String CorrectDate="";

    public static void main(String[] args) {
        Scanner scan=new Scanner(System.in);
        System.out.print("Skriv ett år: ");
        int yy = scan.nextInt();
        System.out.print("Skriv en månad(nummer): ");
        int mm = scan.nextInt();
        System.out.print("Skriv en dag(nummer): ");
        int dd = scan.nextInt();
        System.out.println("Ange format (b/l/m): ");
        String format = scan.next();
        DateFormat(yy, mm, dd, format);
        System.out.println(CorrectDate);
    }


    public static String DateFormat(int yy, int mm, int dd, String format){
        String month;
        String day;
        if (mm<10){                 //if the number of the month is less than 10 it wont be a zero in front of it
            month="0"+ mm;          // the zero is important because of date-standards
        }
        else {
            month=Integer.toString(mm);     //want all my numbers to be strings because my method returns a string, not a int
        }
        if (dd<10){
            day="0"+ dd;                //do not need to convert int to string. It's done automatically when added into the "day"-string
        }
        else{
            day=Integer.toString(dd);
        }
        if (format.equals("b")){            //.equals to compare strings
            return CorrectDate=yy+"/"+month+"/"+day;
        }
        else if (format.equals("l")){
            return CorrectDate=day+"/"+month+"/"+yy;
        }
        else if (format.equals("m")){
            return CorrectDate=month+"/"+day+"/"+yy;
        }
        else{
            return CorrectDate;
        }
    }
}