{filelink=5783}

import javax.swing.text.MaskFormatter;

public class ExempleMaskFormat {

  public static void main(String args[]) throws Exception {

    MaskFormatter mf = new MaskFormatter("A-AAAA-AAAA-A");
    mf.setValueContainsLiteralCharacters(false);
    System.out.println(mf.valueToString("123123123123"));
  }
}