public class StringUtilities {
    public Character getMiddleCharacter(String word){
        char midChar = word.charAt(word.length() / 2);       
        return midChar;
    }

    public String removeCharacter(String value, char charToRemove){
        StringBuilder sb = new StringBuilder();

        for (int i = 0; i < value.length(); i++) {
            if (value.charAt(i) == charToRemove) {
                continue;
            } else {
                sb.append(value.charAt(i));
            }
        }

        String newValue = sb.toString();

        return newValue;  
    }

    public String getLastWord(String value) {
        // Cycle through each element of the string.
        // If the element is a space, the word is the space 

        StringBuilder sbLastWord = new StringBuilder();

        for (int i = value.length() - 1; i > 0; i--) {
            if (value.charAt(i) == ' ') {
                sbLastWord.append(value.substring(i + 1, value.length()));
                break;
            }
        }

        String lastWord = sbLastWord.toString();
        
        return lastWord;
    }
}