Example of Methods of StringTokenizer Class

Below is the implementation of Methods:

Java

// Java Program to implement
//
import java.util.*;
 
// Driver Class
class GFG {
    // main function
    public static void main(String[] args)
    {
        // Creating a StringTokenizer
        StringTokenizer str = new StringTokenizer(
            "Welcome to w3wiki");
 
        StringTokenizer temp = new StringTokenizer("");
 
          // countTokens Method
        int count = str.countTokens();
        System.out.println(count);
       
          // hasMoreTokens Methods
          System.out.println("Welcome to w3wiki: "+str.hasMoreTokens());
          System.out.println("(Empty String) : "+temp.hasMoreTokens());
       
          // nextElement() Method
          System.out.println("\nTraversing the String:");
       
          while(str.hasMoreTokens()){
              System.out.println(str.nextElement());
        }
           
    }
}

Output

3
Welcome to w3wiki: true
(Empty String) : false

Traversing the String:
Welcome
to
w3wiki

StringTokenizer Class in Java

StringTokenizer class in Java is used to break a string into tokens. A StringTokenizer object internally maintains a current position within the string to be tokenized. Some operations advance this current position past the characters processed.

A token is returned by taking a substring of the string that was used to create the StringTokenizer object. It provides the first step in the parsing process often called lexer or scanner.

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Java // Java Program to implement // Java String Tokenizer Constructors import java.util.*; // Driver Class class GFG { // main function public static void main(String[] args) { // Constructor 1 System.out.println("Using Constructor 1 - "); // Creating object of class inside main() method StringTokenizer st1 = new StringTokenizer( "Hello Geeks How are you", " "); // Condition holds true till there is single token // remaining using hasMoreTokens() method while (st1.hasMoreTokens()) // Getting next tokens System.out.println(st1.nextToken()); // Constructor 2 System.out.println("Using Constructor 2 - "); // Again creating object of class inside main() // method StringTokenizer st2 = new StringTokenizer( "JAVA : Code : String", " :"); // If tokens are present while (st2.hasMoreTokens()) // Print all tokens System.out.println(st2.nextToken()); // Constructor 3 System.out.println("Using Constructor 3 - "); // Again creating object of class inside main() // method StringTokenizer st3 = new StringTokenizer( "JAVA : Code : String", " :", true); while (st3.hasMoreTokens()) System.out.println(st3.nextToken()); } }...

Example of Methods of StringTokenizer Class

Java

StringTokenizer Class in Java

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