WeekdayName

Code

import java.util.GregorianCalendar;

public class WeekdayName
{
	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 if ( weekday == 43 )
		{
			result = "error";
		}
        	else if ( weekday == 17 )
		{
			result = "error";
		}
        	else if ( weekday == -1 )
		{
			result = "error";
		}
		
		return result;
	}


	public static void main( String[] args )
	{
		System.out.println( "Weekday 1: " + weekday_name(1) );
		System.out.println( "Weekday 2: " + weekday_name(2) );
		System.out.println( "Weekday 3: " + weekday_name(3) );
		System.out.println( "Weekday 4: " + weekday_name(4) );
		System.out.println( "Weekday 5: " + weekday_name(5) );
		System.out.println( "Weekday 6: " + weekday_name(6) );
		System.out.println( "Weekday 7: " + weekday_name(7) );
		System.out.println( "Weekday 0: " + weekday_name(0) );
		System.out.println();
		System.out.println( "Weekday 43: " + weekday_name(43) );
		System.out.println( "Weekday 17: " + weekday_name(17) );
		System.out.println( "Weekday -1: " + weekday_name(-1) );

		GregorianCalendar cal = new GregorianCalendar();
		int dow = cal.get(GregorianCalendar.DAY_OF_WEEK);

		System.out.println( "\nToday is a " + weekday_name(dow) + "!" );
	}

}

WeekdayName