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()); } } |
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()); } } |
Total number of Tokens: 3 token at [0] : Welcome token at [1] : to token at [2] : GeeksforGeeks
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