Need help with Beginner java code

[sjoe1492]

Hi guys i am currently taking a java class and have never programmed before. i need to write a program that takes 3 parameters (month, day, year). Then outputs the day of the week, the date, whether or not the year is a leap year and the number of days left in the year. I have everything working except for the day of the week and the number of days left in the year.
Here is my code:

import java.util.*;
import java.util.GregorianCalendar;
import java.text.DateFormat;
 public class leapYear {

 public static void main(String[] args) throws Exception {
 
 
GregorianCalendar newCal = new GregorianCalendar();

	int m = Integer.parseInt (args[0]);
	int d = Integer.parseInt (args[1]);
	int y = Integer.parseInt (args[2]);


    newCal.set(y, m, d);

	

    String[] months = new String[]{
		"January",
        "February",
        "March",
        "April",
        "May",
        "June",
        "July",
		"August",
		"September",
		"October",
		"November",
		"December",
    };

	System.out.println( (newCal.get(Calendar.DAY_OF_WEEK)) + " - " + (months[newCal.get(Calendar.MONTH) - 1]) + " " + d + ", " + y);
	
	if(newCal.isLeapYear(y) == true)
	{
		System.out.println(y + " is a leap year");
	}
	else
	{
		System.out.println(y + " is Not a leap year");
	}
	
int dayOfYear = newCal.get(newCal.DAY_OF_YEAR);
int lastDayOfYear = newCal.getActualMaximum(Calendar.DAY_OF_YEAR);
int diff = lastDayOfYear - dayOfYear;
System.out.println("There are " + diff + " days left in the year.");


	
	

		
 }

}

i would really appreciate if someone can help me out.
Thank You.