Skip to content
Related Articles

Related Articles

Improve Article
StringTokenizer countTokens() Method in Java with Examples
  • Last Updated : 28 Jan, 2019

The countTokens() method of StringTokenizer class calculate the number of times that this tokenizer’s nextToken method can be called before the method generates any further exception.
Note: The current position is not advanced during the process.

Syntax:

public int countTokens()

Parameters: The method does not take any parameters.

Return Value: The method is used to return the number of tokens remaining in the string using the current delimiter set.

Below programs illustrate the working of countTokens() Method of StringTokenizer:
Example 1:






// Java code to illustrate countTokens() method
  
import java.util.*;
  
public class StringTokenizer_Demo1 {
    public static void main(String args[])
    {
  
        // Creating a StringTokenizer
        StringTokenizer str_arr
            = new StringTokenizer(
                "Lets practice at GeeksforGeeks");
  
        // Counting the tokens
        int count = str_arr.countTokens();
        System.out.println("Total number of Tokens: "
                           + count);
  
        // Print the tokens
        for (int i = 0; i < count; i++)
            System.out.println("token at [" + i + "] : "
                               + str_arr.nextToken());
    }
}
Output:
Total number of Tokens: 4
token at [0] : Lets
token at [1] : practice
token at [2] : at
token at [3] : GeeksforGeeks

Example 2:




// Java code to illustrate countTokens() method
  
import java.util.*;
  
public class StringTokenizer_Demo2 {
    public static void main(String args[])
    {
  
        // Creating a StringTokenizer
        StringTokenizer str_arr
            = new StringTokenizer(
                "Welcome to GeeksforGeeks");
  
        // Counting the tokens
        int count = str_arr.countTokens();
        System.out.println("Total number of Tokens: "
                           + count);
  
        // Print the tokens
        for (int i = 0; i < count; i++)
            System.out.println("token at [" + i + "] : "
                               + str_arr.nextToken());
    }
}
Output:
Total number of Tokens: 3
token at [0] : Welcome
token at [1] : to
token at [2] : GeeksforGeeks

Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more,  please refer Complete Interview Preparation Course.




My Personal Notes arrow_drop_up
Recommended Articles
Page :