Java: How to split a string by a number of characters?

Question

I tried to search online to solve this question but I didn't found anything.

I wrote the following abstract code to explain what I'm asking:

String text = "how are you?";

String[] textArray= text.splitByNumber(4); //this method is what I'm asking
textArray[0]; //it contains "how "
textArray[1]; //it contains "are "
textArray[2]; //it contains "you?"

The method splitByNumber splits the string "text" every 4 characters. How I can create this method??

Many Thanks

Answer 1

I think that what he wants is to have a string split into substrings of size 4. Then I would do this in a loop:

List<String> strings = new ArrayList<String>();
int index = 0;
while (index < text.length()) {
    strings.add(text.substring(index, Math.min(index + 4,text.length())));
    index += 4;
}