Assignemnt #96 and Weekday Calculator

Code

  /// Name: Marco Correa
  /// Period: 5
  /// Program Name: Weekday Calculator
  /// File Name: Weekday Calculator.java
  /// Date Finished: 3/9/2016



  import java.util.Scanner;

  public class WeekdayCalculator
  {
	  public static void main( String[] args )
	  {
		  Scanner keyboard = new Scanner(System.in);

		  System.out.println("Welcome to Mr. Mitchell's fantastic birth-o-meter!");
		  System.out.println();
		  System.out.println("All you have to do is enter your birth date, and it will");
		  System.out.println("tell you the day of the week on which you were born.");
		  System.out.println();
		  System.out.println("Some automatic tests....");
		  System.out.println("12 10 2003 => " + weekday(12,10,2003));
		  System.out.println(" 2 13 1976 => " + weekday(2,13,1976));
		  System.out.println(" 2 13 1977 => " + weekday(2,13,1977));
		  System.out.println(" 7  2 1974 => " + weekday(7,2,1974));
		  System.out.println(" 1 15 2003 => " + weekday(1,15,2003));
		  System.out.println("10 13 2000 => " + weekday(10,13,2000));
		  System.out.println();

		  System.out.println("Now it's your turn!  What's your birthday?");
		  System.out.print("Birth date (mm dd yyyy): ");
		  int mm = keyboard.nextInt();
		  int dd = keyboard.nextInt();
		  int yyyy = keyboard.nextInt();
		  String day;


		  day = weekday(mm, dd, yyyy);
		
		  System.out.println("You were born on " + day );
	  }


	  public static String weekday( int mm, int dd, int yyyy )
	  {
		  int yy, total, remainder;
		  String date = "";
		

		  yy = yyyy - 1900;
		
		  total = yy / 4;
		  total += yy;
		  total += dd;
		  total += month_offset(mm);
		
		  if ( is_leap(yyyy) )
		  {
			  if ( month_name(mm).equals("January") || month_name(mm).equals("February") ) // yes I could do this with just mm ==   1 or mm ==2 but thats not what it asks 
				  total -= 1;
		  }
		
		  remainder = total % 7;
		
		  date = weekday_name(remainder) + ", " +  month_name(mm) + " " + dd + ", " + yyyy;

		  return date;
	  }



	  {
		  int result;
		
		  if ( month == 4 || month == 7 )
			  result = 0;
		  else if ( month == 1 || month == 10 )
			  result = 1;
		  else if ( month == 5 )
			  result = 2;
		  else if ( month == 8 )
			  result = 3;
		  else if ( month == 2 || month == 3 || month == 11 )
			  result = 4;
		  else if ( month == 6 )
			  result = 5;
		  else if ( month == 9 || month == 12 )
			  result = 6;
		  else 
			  result = -1;

		  return result;
	  }
	
	  public static String month_name( int month )
	  {
		  String result;
				
		  switch(month)
		  {
			  case 1: 
				  result = "January";
				  break;
			  case 2: 
				  result = "February";
				  break;
			  case 3: 
				  result = "March";
				  break;
			  case 4: 
				  result = "April";
				  break;
			  case 5: 
				  result = "May";
				  break;
			  case 6: 
				  result = "June";
				  break;
			  case 7: 
				  result = "July";
				  break;
			  case 8: 
				  result = "August";
				  break;
			  case 9: 
				  result = "September";
				  break;
			  case 10: 
				  result = "October";
				  break;	
			case 11: 
				  result = "November";
				  break;
			  case 12: 
				  result = "December";
				  break;
			  default: 
				  result = "error";
				  break;	
		  }
		  return result;
	  }
	
	  public static String weekday_name( int weekday )
	  {
		  String result = "";

		  if ( weekday == 1 )
		  {
			  result = "Sunday";
		  }
		  else if ( weekday == 2 )
		  {
			  result = "Monday";
		  }
		  else if ( weekday == 3 )
		  {
			  result = "Tuesday";
		  }
		  else if ( weekday == 4 )
		  {
			  result = "Wednesday";
		  }
		  else if ( weekday == 5 )
		  {
			  result = "Thursday";
		  }
		  else if ( weekday == 6 )
		  {
			  result = "Friday";
		  }
		  else if ( weekday == 7 )
		  {
			  result = "Saturday";
		  }
		  else if ( weekday == 0 )
		  {
			  result = "Saturday";
		  }		
		  else
		  {
			  result = "\"error\"";
		  }		
		
		  return result;
	  }

	  public static boolean is_leap( int year )
	  {

		  boolean result;

		  if ( year%400 == 0 )
			  result = true;
		  else if ( year%100 == 0 )
			  result = false;
		  else if ( year%4 == 0 )
			  result = true;
		  else
			  result = false;
		
		  return result;
	  }
  }


    

Picture of the output