example2_21.java.bak

书中的例题

import java.util.*;
public class Example2_21 
{  public static void main(String args[])
   {  String s="boy,java,Applet girl,Hat";
      StringTokenizer st=new StringTokenizer(s," ,"); //空格和逗号做分
      int number=st.countTokens();
      while(st.hasMoreTokens()) 
       {  String str=st.nextToken();
          System.out.println(str);
          System.out.println("还剩"+st.countTokens()+"个单词");
       }
     System.out.println("s共有单词："+number+"个");
   } 
}