Java if statement get days of a month

Question

We would like to write a program that prompts the user to enter a year and the first three letters of a month name.

Display the number of days in the month.

Here is a sample run: 

Enter a year: 2001 
Enter a month: Jan 
Jan 2001 has 31 days 

Enter a year: 2016 
Enter a month: Feb 
Jan 2016 has 29 days 

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);

    // Prompt the user to enter a year and
    // the first three letter of a month name
    System.out.print("Enter a year: ");
    int year = input.nextInt();
    System.out.print("Enter a month: ");
    String month = input.next();/*  w  w w.ja v a  2  s.c o  m*/

    // Test for leap year
    boolean leapYear = 
      ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);

    // Display the number of day in the month
    System.out.print(month + " " + year + " has ");
    
    //your code here
  }
}



import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);

    // Prompt the user to enter a year and
    // the first three letter of a month name
    System.out.print("Enter a year: ");
    int year = input.nextInt();
    System.out.print("Enter a month: ");
    String month = input.next();

    // Test for leap year
    boolean leapYear = 
      ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);

    // Display the number of day in the month
    System.out.print(month + " " + year + " has ");
    
    if ( month.equals("Jan") || month.equals("Mar") || 
        month.equals("May") || month.equals("Jul") ||
        month.equals("Aug") || month.equals("Oct") ||
        month.equals("Dec"))
      System.out.println(31 + " days");
    else if (month.equals("Apr") || month.equals("Jun") || 
      month.equals("Sep") || month.equals("Nov"))
      System.out.println(30 + " days");
    else
      System.out.println(((leapYear) ? 29 : 28) + " days");  
  }
}



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