/* svuk002@ec.auckland.ac.nz */

public class ToCapsAnswer {
	
	/* You do not need to modify the main () method */
	public static void main (String[] args) {
		String[] testCases = {
			"Hello, World!",
			"123abc",
			"Oh, to live on Sugar Mountain...",
			"computer science 105 is fun."
		};
		
		for (int i = 0; i < testCases.length; i++) {
			String result = convertToCaps (testCases[i]);
			System.out.println ("The original string was: ");
			System.out.println (testCases[i]);
			System.out.println ("The converted string is: ");
			System.out.println (result);
		}
	}
	
	/* Complete the convertToCaps () method below */
	public static String convertToCaps (String s) {
		String toReturn = "";
		for (int i = 0; i < s.length (); i++) {
			char currChar = s.charAt (i);
			try {
				if (! (currChar >= 'a' && currChar <= 'z'))
					throw new CapsFormatException ();
				currChar = (char) (currChar - 'a' + 'A');
			}
			catch (CapsFormatException e) {
				System.out.println (e + " while processing " + currChar);
			}
			finally {
				toReturn += currChar;
			}
		}
		return toReturn;
	}
}