token.java

用Java编写的基于Socket的聊天室小程序！

class Token
{
 public final static int INVALID = -1;
 public final static int LEFTPARENTHESIS = 0;
 public final static int RIGHTPARENTHESIS = 1;
 public final static int ADD = 2;
 public final static int SUB = 3;
 public final static int MUL = 4;
 public final static int DIV = 5;
 public final static int NUM = 6;

 private String content;
 private int type;

 public Token(String content, int type)
 {
  this.content = content;
  this.type = type;
 }

 public String getContent()
 {
  return content;
 }

 public double getDoubleValue()
 {
  return Double.parseDouble(content);
 }

 public int getType()
 {
  return type;
 }
}