[Q#9276639][A#9276720] Java: How to split a string by a number of characters?

https://stackoverflow.com/q/9276639

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

Answer

https://stackoverflow.com/a/9276720

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:

APIzation

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;
}

package com.stackoverflow.api;

import java.util.ArrayList;
import java.util.List;

public class Human9276720 {

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

package com.stackoverflow.api;

import java.util.ArrayList;
import java.util.List;

/**
 * Java: How to split a string by a number of characters?
 *
 * @author APIzator
 * @see <a href="https://stackoverflow.com/a/9276720">https://stackoverflow.com/a/9276720</a>
 */
public class APIzator9276720 {

  public static void java(String text) throws Exception {
    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;
    }
  }
}