Method tokenize

java/Chapter 17/Question17_10/QuestionString.java:124–130

(char[] input)

	}

	private void tokenize(char[] input) {
		tokens = new ArrayList<String>();
		int i = 0;
		while (i < input.length) {
			i = setNextToken(input, i);
		}
	}

	private int setNextToken(char[] input, int inputIndex) {
		int i = inputIndex;