Write a class named MonthDays The classs constructor should
Write a class named MonthDays. The class\'s constructor should accept two arguments:
- An integer for the month (1 = January, 2 February,etc).
- An integer for the year
The class should have a method named getNumberOfDays that returns the number of days in the specified month. The method should use the following criteria to identify leap years:
 
 1. Determine whether the year is divisible by 100. If it is, then it is a leap year if and if only it is divisible by 400. For example, 2000 is a leap year but 2100 is not.
 
 2. If the year is not divisible by 100, then it is a leap year if and if ony it is divisible by 4. For example, 2008 is a leap year but 2009 is not.
Demonstrate the class in a program that asks the user to enter the month ( letting the user enter and integer in the range of 1 though 12) and the year. The program should then diplay the number of days in that month. Here is a sample run of the program:
Enter a month (1-12): 2 [Enter]
 Enter a year: 2008 [Enter]
    29 days
Solution
MonthDaysTest.java
 import java.util.Scanner;
public class MonthDaysTest {
   public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println(\"Enter a month (1-12): \");
        int month = scan.nextInt();
        System.out.println(\"Enter a year: \");
        int year = scan.nextInt();
        MonthDays m = new MonthDays(month, year);
        System.out.println(m.getNumberOfDays()+\" days\");
       
}
}
MonthDays.java
 public class MonthDays {
    private int month ;
    private int year;
    public MonthDays(int m, int y){
        month = m;
        year = y;
    }
    public int getNumberOfDays(){
        int days = 0;
        if(month ==1 || month == 3 || month ==5 || month == 7 || month ==8 || month == 10 || month == 12){
            days = 31;
        }
        else if(month == 4 || month == 6 || month == 9 || month ==11){
            days = 30;
        }
        else if(month == 2){
            if ((year%4 == 0 && year%100 !=0)|| year%400 == 0)
            days = 29;
            else
            days = 28;
        }
        return days;
    }
 }
Output:
Enter a month (1-12):
 2
 Enter a year:
 2008
 29 days


