public boolean validateMinimum(final String candidate){
  boolean valid=true;
  try {
    if (Double.parseDouble(candidate) >= this.maximumValue) {
      valid=false;
    }
  }
 catch (  final NumberFormatException e) {
    valid=false;
  }
  return valid;
}

public boolean validateMinimum ( final String candidate ) { boolean valid = true ; try { if ( Double . parseDouble ( candidate ) >= this . maximumValue ) { valid = false ; } } catch ( final NumberFormatException e ) { valid = false ; } return valid ; }
revalidate the range minimum : it should be less than the current maximum .
