creating a calendar using java api class calendar

Question

I am creating a calendar which accepts an input value of 1-12 for months. The default value for year is current year so right now it is using a 2015 calendar I successfully created it but i have a problem that calendar.getDisplayName(Calendar.DAY_OF_WEEK, 1, Locale.US); returns the current day value of the calendar and not the FIRST day of the month.. so my problem now is it doesn't print the 1st week of the month correctly and i have to get the First day of the month here is my code by the way

public static void main(String[] args) 
{
    Calendar calendar = Calendar.getInstance();
    Scanner sc = new Scanner(System.in);
    String[] day = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
    int inputMonth = 0;
    boolean validInputForMonth = false;

    while(!validInputForMonth) 
    {
        System.out.print("Enter a number for the month(1 to 12 only): ");
        String input = sc.next(); // This will be the input of the user for the month

        Pattern p = Pattern.compile("[1-9]{1}|1[0-2]{1}"); // Compiles the valid pattern for month input
        Matcher m = p.matcher(input); // Matches the user input to the month input
        boolean b = m.matches(); // if input is valid it will go to if statement else if false

        if(b) 
        {
            inputMonth = Integer.parseInt(input); // Parse the input string into Integer

            if((inputMonth >= 1) || (inputMonth <= 12)) 
            {
                validInputForMonth = true; // returns true if input is 1 - 12
            }

            else 
            {
                System.out.println("\n\nInvalid Month! Input number again for month.");
            }
        }

        else 
        {
            System.out.println("\n\nInvalid Month! Input number again for month.");
        }
    }

    sc.close();
    System.out.println("");

    calendar.set(Calendar.MONTH, inputMonth - 1);
    System.out.println(calendar.getDisplayName(Calendar.MONTH, 2, Locale.US) + " " + calendar.get(Calendar.YEAR));

    String startDay = calendar.getDisplayName(Calendar.DAY_OF_WEEK, 1, Locale.US);
    int totalDays = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

    /* Loop to display the Days of the week */
    for (int x = 0; x < day.length; x++) 
    {
        System.out.print(day[x] + "\t");
    }

    System.out.println("");

    int counter = 0;
    int daysInTheWeek = 7;

    /* Loop to print empty spaces until first day is found */
    for (int x = 0; x < daysInTheWeek; x++) 
    {
        if (day[x].equals(startDay)) 
        {
            System.out.print("");
            break;
        }

        else 
        {
            System.out.print("\t");
            counter++;
        }
    }

    int startingDate = 1; // Initialize the starting date to 1

    /* Loop to display the days of the month on the 1st week */
    for(int x = 1; x <= daysInTheWeek - counter; x++) 
    {
        if(x == 1 && (daysInTheWeek - counter == 1))
        {
            System.out.println(x);
        }

        else if(x == 1)
        {
            System.out.print(x);
        }

        else if(x == daysInTheWeek - counter)
        {   
            System.out.print("\t" + startingDate + "\n");
        }

        else
        {
            System.out.print("\t" + startingDate);
        }

        startingDate++;
    }

    /* Loop to display the days of the month after the 1st week is done */
    do 
    {
        for(int x = 1; x <= daysInTheWeek; x++) 
        {
            if (x < daysInTheWeek) 
            {
                System.out.print(startingDate + "\t");

                if (startingDate < totalDays)
                {
                    startingDate++;
                }

                if (startingDate == totalDays) 
                {
                    System.out.println(startingDate);
                    break;
                }
            }

            else 
            {
                System.out.println(startingDate);

                if (startingDate < totalDays)
                {
                    startingDate++;
                }

                if (startingDate == totalDays) 
                {
                    System.out.println(startingDate);
                    break;
                }
            }
        }
    }while (startingDate < totalDays);
}

Answer 1

If I understand your question then you need to also set the DAY_OF_THE_MONTH like

calendar.set(Calendar.MONTH, inputMonth - 1);
calendar.set(Calendar.DAY_OF_MONTH, 1); // <-- add this