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Java StringTokenizer count tokens example

  1. /*
  2.   Java StringTokenizer count tokens example
  3.   This example shows how to count remaining tokens of java StringTokenizer object
  4.   using countTokens() method.
  5. */
  6.  
  7. import java.util.StringTokenizer;
  8.  
  9. public class StringTokenizerCountTokensExample {
  10.  
  11.   public static void main(String[] args) {
  12.    
  13.     //create StringTokenizer object
  14.     StringTokenizer st = new StringTokenizer("Java StringTokenizer count Tokens Example");
  15.  
  16.     /*
  17.      countTokens() method returns the number of tokens remaining from the current
  18.      delimiter set.
  19.      It calculates the number of times StringTokenizer's nextToken() method
  20.      can be called before it generates an exception.
  21.      Please note that invoking countTokens() method does not advance the
  22.      current position.
  23.        
  24.     */
  25.    
  26.     //iterate through tokens
  27.     while(st.hasMoreTokens()){
  28.       System.out.println("Remaining Tokens : " + st.countTokens());
  29.       System.out.println(st.nextToken());
  30.     }
  31.    
  32.   }
  33. }
  34.  
  35. /*
  36. Output Would be
  37. Remaining Tokens : 5
  38. Java
  39. Remaining Tokens : 4
  40. StringTokenizer
  41. Remaining Tokens : 3
  42. count
  43. Remaining Tokens : 2
  44. Tokens
  45. Remaining Tokens : 1
  46. Example
  47. */