NationalIdRegex.java

import java.util.regex.*;

public class NationalIdRegex {
  public static void main(String args[]) {
    // 1st way.
    Pattern pattern = Pattern.compile("\\d{2}[-|\\t|\\s]\\d{7}[A-Za-z&&[^IOio]]\\d{2}");
    Matcher matcher = pattern.matcher("29-1526374X45");
    boolean isIdInCorrectFormat = matcher.matches();
    System.out.println("Is the id correct: " + isIdInCorrectFormat);
  }
}