JAVA Date and time (HACKERRANK problem)

Problem

The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.

---

You are given a date. Your task is to find what the day is on that date.

Input Format

A single line of input containing the space separated month, day and year, respectively, in   format.

Constraints

Output Format

Output the correct day in capital letters.

Sample Input

08 05 2015

Sample Output

WEDNESDAY

Explanation

The day on August th  was WEDNESDAY.

Solution:

import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

        String month = in.next();

        String day = in.next();

        String year = in.next();

        int nmonth = Integer.parseInt(month);

         int nday = Integer.parseInt(day);

         int nyear = Integer.parseInt(year);

       // SimpleDateFormat f = new SimpleDateFormat("dd MM yyyy");

        

     /*   Calendar cal = Calendar.getInstance();

cal.setTime(f);

int cyear = cal.get(Calendar.YEAR);

int cmonth = cal.get(Calendar.MONTH);

int cday = cal.get(Calendar.DAY_OF_MONTH);

        System.out.println(cal.get(Calendar.DAY_OF_WEEK));

        */

        

      Calendar calendar = Calendar.getInstance();

calendar.set(nyear, nmonth-1, nday);

System.out.println(new DateFormatSymbols().getWeekdays()[calendar.get(Calendar.DAY_OF_WEEK)].toUpperCase());

in.close();  

        

    }

}