package java_cup.runtime;/** This subclass of token represents symbols that need to maintain one *  String value as an attribute.  It maintains that value in the public *  field str_val. * * @see java_cup.runtime.int_token * @version last updated: 11/25/95 * @author  Scott Hudson */public class str_token extends token {  /** Full constructor. */  public str_token(int term_num, String v)    {      /* super class does most of the work */      super(term_num);      str_val = v;    }  /** Constructor for value defaulting to an empty string. */  public str_token(int term_num)    {      this(term_num, "");    }  /** The stored string value. */  public String str_val;};