Write a program that prompts the user to enter a month (1-12) and year, then displays the number of days in the month. For example, if the user entered month 2 and year 2012, the program would display that February 2012 has 29 days. Be careful with February. If the year entered is a leap year, your output should show that February has 29 days. Use the "Case Study: Determining Leap Year" on p. 105 of Introduction to Java Programming for information on how to calculate the leap year. It does not exactly happen every four years.

In Java

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

    int mnth, yr;

 Scanner input = new Scanner(System.in);

 System.out.print("Month: ");  mnth = input.nextInt();

 System.out.print("Year: ");  yr = input.nextInt();

 boolean lpYear = (yr % 4 == 0 && yr % 100 != 0) || (yr % 400 == 0);

 if(mnth == 1 || mnth == 3 || mnth == 5 || mnth== 7 || mnth == 8 || mnth == 10 || mnth == 12){

     System.out.print("31 days");  }

 else if(mnth == 2){

     System.out.print(((lpYear) ? "29 days" : "28 days"));  }

else if(mnth == 9 || mnth == 6 || mnth == 4 || mnth== 11){

     System.out.print("30 days");  }

 else{      System.out.print("Invalid");  }

}

}

Explanation:

See attachment for complete program where comments were used as explanation.

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grouping files and folders.

explanation:

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