[ProjectEuler.net / 5 ] How many Sundays fell on the first of the month during the twentieth century?

package com.tistory.honeybox.Euler;
import java.util.Calendar;

public class Euler5 
{

	public static void main(String [] args)
	{
		Calendar cal = Calendar.getInstance();
	
		int i,j;
		int nCount = 0;
		for(i = 1901 ; i <= 2000; i++)
		{
			for(j = 1 ;j <= 12; j++)
			{
				cal.clear();
				cal.set(i,j,1);
				if(cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY)
				{
					nCount++;
				}
			}
		}
		System.out.println(nCount);
		
	}
}