code: public void setUnicodeChars(final String[] unicodeChars) {
          if (unicodeChars != null) {
              this.unicodeChars = StringUtil.cloneArray(unicodeChars);
              cssValue = getBuiltCssValue(this.unicodeChars);
          } else {
              this.unicodeChars = null;
              cssValue = DEFAULT_VALUE;
          }
          if (getStateChangeInformer() != null) {
              getStateChangeInformer().stateChanged(this);
          }
      }
docs: <pre>
  Eg:-
  String[] unicodeChars = {"U+0400-045F", "U+0490-0491", "U+04B0-04B1", "U+2116"};
  
  </pre>
  
  @param unicodeChars
  the unicodeChars to set
  @author WFF
  @since 1.1.2