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Thread: how do i add the calendar thing ?

  1. #1
    Junior Member
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    Question how do i add the calendar thing ?

    ================================================== ============
    QUESTION:

    (Find the number of days in a month) Write a program that prompts the user to enter the month and year and displays the number of days in the month. For example, if the user entered month 2 and year 2012, the program should display that February 2012 had 29 days. If the user entered month 3 and year 2015, the program should display that March 2015 had 31 days. Use switch statement.

    Here is a sample run:
    Enter a month in the year (e.g., 1 for Jan): 2
    Enter a year: 2020
    February 2020 has 29 days
    ================================================== =============
    I hope i am posting this in the right forum.

    I got everything right except the days/month/year thing, as in Feb 2019 has 28 days and feb 2020 has 29 days. how can i do this ?


    ================================================== ==============
    My code.

    import java.util.Scanner;

    public class DaysInMonths {
    public static void main (String args[]) {

    Scanner input = new Scanner(System.in);

    System.out.println("Enter a month in the year: ");
    int month = input.nextInt();

    System.out.println("Enter a year: ");
    int year = input.nextInt();

    switch(month) {
    case 1:
    System.out.println("January " + year + " has 30 days");
    break;
    case 2:
    System.out.println("February " + year + " has 29 days");
    break;
    case 3:
    System.out.println("March " + year + " has 30 days");
    break;
    case 4:
    System.out.println("April " + year + " has 31 days");
    break;
    case 5:
    System.out.println("May " + year + " has 30 days");
    break;
    case 6:
    System.out.println("June " + year + " has 31 days");
    break;
    case 7:
    System.out.println("July " + year + " has 30 days");
    break;
    case 8:
    System.out.println("August " + year + " has 31 days");
    break;
    case 9:
    System.out.println("September " + year + " has 30 days");
    break;
    case 10:
    System.out.println("October " + year + " has 31 days");
    break;
    case 11:
    System.out.println("November " + year + " has 30 days");
    break;
    case 12:
    System.out.println("December " + year + " has 31 days");
    break;
    default:
    System.out.println("Month not valid!");
    break;
    }

    }
    }



    As you can see i just placed the days in a string but i just don't know how to add the calendar thing ( still learning here )

    Thank you!!

  2. #2
    Member John Joe's Avatar
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    Default Re: how do i add the calendar thing ?

            Calendar cal = Calendar.getInstance();
            System.out.println("Enter a month in the year: ");
            int month = input.nextInt();
     
            System.out.println("Enter a year: ");
            int year = input.nextInt();
     
            cal.set(Calendar.YEAR, year);
            cal.set(Calendar.MONTH, month);

    then in case, you can get the day using this way

    int numDays = cal.getActualMaximum(Calendar.DATE);
    Whatever you are, be a good one

  3. The Following User Says Thank You to John Joe For This Useful Post:

    UniverseCloud (December 1st, 2017)

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