\w Matches any letter ("a" - "z" or "A" - "Z") or digit : Regex « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. Regex

import java.util.Scanner;

public class MainClass {
  public static void main(String[] argv) {

    String scanMe = "abc123d123ef123gh123ij123kl";
    String delim = "\\w";
    Scanner scanner = new Scanner(scanMe);
    scanner.useDelimiter(delim);
    while (scanner.hasNext())
      System.out.println(scanner.next());

  }
}