How to display a yearly calendar using arrays a loops?

[Augusto Celis]

Ok, so my teacher gave us a calendar assignment, where we have to display each month of a year dependent on what year it is. The first day of the year is calculated (0-6 meaning Sunday-Saturday), and the user inputs the year. He has stored how many days are in each month in an array called daysPerMonth. I am so confused on how to go about this because he wants us to access the array and display that many days and display each next month. Doing this, while also accounting for the first day of the year. Can anyone help? The teacher has provided much of the code and has gives us 2 functions to fill in. Please help? I am so confused help please? Where it asks for me to implement code that is my attempt at writing some code

import java.util.Scanner;

public class Calendar 
{ 
	static final int FEBRUARY        = 2;
	static final int MONTHS_PER_YEAR = 12;
	
	static int [] daysPerMonth = 
		{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
	
	static String [] months =  
		{"", "  Januray", "February", "   March", "   April",
			 "      May", "    June", "    July", "  August", 
			"September", " October", "November", "December"};
 
	public static void main(String[] args) 
	{ 		
		Scanner in = new Scanner(System.in); 
		System.out.print("Enter the year? (yyyy): "); 
		int year = in.nextInt(); 

		int firstDay = firstDayOfYear(year);
		
		// February: Check for leap year    
		daysPerMonth [FEBRUARY] = isLeapYear(year) ? 29 : 28; 
        
		for (int i=1; i <= MONTHS_PER_YEAR; i++) {
			System.out.println("\n\n      "+months[i]+" "+year);
			printMonth(daysPerMonth[i], firstDay);
		//	firstDay = firstDayOfNextMonth(daysPerMonth[i], firstDay); 
		}
	}
	
	// you must implement this method   
	private static void printMonth(int numDays, int firstDay)
	{
		int month=0, value=0;
		System.out.println("Su  Mo  Tu  We  Th  Fr  Sa");
		System.out.println("--  --  --  --  --  --  --");
		String spaceControl = "  ";
		int[][] arr = new int[daysPerMonth.length][];
		
	}
		
	
	// you must implement this method  	
	/*private static int firstDayOfNextMonth(int numDays, int firstDay)
	{
	
	}*/
	
	private static boolean isLeapYear(int year) {
		return ((year%4 == 0) && (year%100 != 0)) || (year%400 == 0);
	}

	private static int firstDayOfYear(int year) {
		return (2 * (13) + (3 * (13+1)/5) + (year-1) + ((year-1)/4) 
				- ((year-1)/100) + ((year-1)/400) + 2) % 7;
	}
}

[Carey Brown]

Your method firstDayOfNextMonth(int numDays, int firstDay) takes two arguments, the number of days in this month, and the day this month starts on. I suggest taking your calendar off the wall and playing computer and see if you can see a pattern emerge when you count off the number of days starting from the firstDay of this month. Your result needs to be >= 0 and <= 6 to indicate Sunday through Saturday of the next month.

[Norm Radder]

Also posted at: http://www.dreamincode.net/forums/topic/394829-how-to-display-the-year-calendar-using-a-loop-in-java/

[Ron McLeod]

Also posted at: https://answers.yahoo.com/question/index?qid=20160627153447AAsdGtR

Augusto - we have no problem with you posting the same question on multiple sites, but please Be Forthright When Cross Posting To Other Sites so that nobody spends their time trying to help with a problem which has already been answered elsewhere.

[Stefan Evans]

First step I would suggest:

Forget about formatting it nicely to start with.
Can you print out the right amount of days for each month?

Once you have that, then figure out how to print it over multiple lines.

In your printMonth method, you have declared an int[][] variable called "arr"
What is this meant to represent?