/**
 * 
 */

/**
 * <P>A couple of methods to help you review for the second midterm.
 * <br> These were discussed in class this week ...
 * @author tomreinhardt
 *
 */
public class TwoForReview {
	/** <P>Example at the end of class on Wednesday 10 April.<br>
	 * Make sure that you know how this method works. Also, 
	 * make sure that you know how using <code>StringBuilder</code>
	 * impacts the amount of memory consumed by this method on
	 * large pieces of data.
	 * @return <code>(String) word</code> reversed.
	 */
	public static String nreverse(String word ) {
		
		StringBuilder str = new StringBuilder();
		int wordLength = word.length();
		
		for( int i = 0 ; i < word.length(); i++ )
			str.append( word.charAt( ( wordLength + i ) % wordLength ) );
		
		return str.toString();
	}
	/**
	 * <P>This is kind of a kludge of several methods and ideas ... primary
	 * here is the use of exceptions.
	 * @param arrayOfCharacters
	 * @return
	 */
	public static int intAt( int index, int[] arrayOfCharacters ) {
		int theInt = -1;
		
		try {
			theInt = arrayOfCharacters[ index ];
		} catch( IndexOutOfBoundsException exception ) {
			/* Use the message from the real exception to make a better message that
			 * your client will see: and then throw that as the result ... .
			 */
			throw new IndexOutOfBoundsException( exception.getMessage() + " from intAt method.");
		}
		return theInt;
	}
}