Myanmar Number Utils

MyanmarNumberUtils.java

public class MyanmarNumberUtils {

  private MyanmarNumberUtils() {
  }

  /**
   * Transform Burmese number to English number (e.g "၃၀" -> "30")
   *
   * @param n Burmese Number in String type
   * @return English Number in String type
   */
  public static String getEngNumber(String n) {
    StringBuilder eng = new StringBuilder(n.length());
    for (char c : n.toCharArray()) {
      if (isNumber(c)) {
        eng.append((char) (c - 4112));
      } else {
        eng.append(c);
      }
    }
    return eng.toString();
  }

  /**
   * Transform English number to Burmese number (e.g "30" -> "၃၀");
   *
   * @param n English Number in String type.
   * @return Burmese Number in String type.
   */
  public static String getMMNumber(String n) {
    StringBuilder mm = new StringBuilder(n.length());
    for (char c : n.toCharArray()) {
      if (isNumber(c)) {
        mm.append((char) (c + 4112));
      } else {
        mm.append(c);
      }
    }
    return mm.toString();
  }

  /**
   * Transform English number to Burmese number (e.g 30 -> "၃၀")
   *
   * @param n English Number in int type
   * @return Burmese Number in String type
   */
  public static String getMMNumber(int n) {
    return getMMNumber(String.valueOf(n));
  }

  /**
   * Check whether a char is a number
   *
   * @param c a character
   * @return true if c is a number, otherwise false
   */
  public static boolean isNumber(char c) {
    return '0' <= c && c <= '9' || '၀' <= c && c <= '၉';
  }
}