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         


        

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