Question

My teacher specifically requested that we split a sentence into words without using String.split(). I’ve done it using a Vector (which we haven’t learned), a while-loop, and substrings. What are other ways of accomplishing this? (preferably without using Vectors/ArrayLists).

Answer 1

I believe that your teacher is asking you to process the string yourself (without using any other libraries to do it for you). Check to see if this is the case – if you can use them, there are things such as StringTokenizer, Pattern, and Scanner to facilitate string processing.

Otherwise…

You will need a list of word separators (such as space, tab, period, etc…) and then walk the array, building a string a character at a time until you hit the word separator. After finding a complete word (you have encountered a word separator character), save it the variable out into your structure (or whatever is required), reset the variable you are building the word in and continue.