public String toString(){
  if (m_IndexString.equals("")) {
    return "No index set";
  }
  if (m_Upper == -1) {
    throw new RuntimeException("Upper limit has not been specified");
  }
  return m_IndexString;
}

public String toString ( ) { if ( m_IndexString . equals ( "" ) ) { return "No index set" ; } if ( m_Upper == - 1 ) { throw new RuntimeException ( "Upper limit has not been specified" ) ; } return m_IndexString ; }
constructs a representation of the current range . being a string representation , the numbers are based from 1 .
