StringTokenizer Class in the java.util Package

Overview

The StringTokenizer class splits the string of a String object into multiple token strings using a specific delimiter. The delimiter can be a special character, a space, a single character, or a string containing multiple characters. Because the StringTokenizer class uses the Enumeration interface, the split strings exist in enumerable form.

StringTokenizer Constructors

Constructor	Description
StringTokenizer(String str)	Default constructor.
StringTokenizer(String str, String delim)	Constructor that receives the delimiter as an argument.
StringTokenizer(String str, String delim, boolean returnDelims)	Constructor that receives the delimiter and whether to return delimiters as arguments.

StringTokenizer Methods

Method	Description
int countTokens()	Returns the number of split tokens.
boolean hasMoreElements()	Returns true if there is another element to return; otherwise returns false. Same as hasMoreTokens().
boolean hasMoreTokens()	Returns true if there is another token to return; otherwise returns false.
Object nextElement()	Returns the next token. It returns Object, but the actual value is a String.
String nextToken()	Returns the next token. The previous token is removed.
String nextToken(String delim)	Changes the delimiter and then returns the next token.

StringTokenizer Examples

Example 1)

package com.devkuma.tutorial.java.util;

import java.util.StringTokenizer;

public class StringTokenizerClass {

    public static void main(String[] args) {

        String str = "java,c,c++,c#,scala,xml,javascript";
        StringTokenizer st = new StringTokenizer(str, ",");

        while (st.hasMoreTokens()) {
            String lang = st.nextToken();
            System.out.println(lang);
        }
    }
}

Execution result:

java
c
c++
c#
scala
xml
javascript

Example 2)

package com.devkuma.tutorial.javautil;

import java.util.StringTokenizer;

public class StringTokenizerClass2 {

    public static void main(String[] args) {

        String str = "java,c,c++,c#,scala,xml,javascript";
        StringTokenizer st = new StringTokenizer(str, ",", true);

        while (st.hasMoreTokens()) {
            String lang = st.nextToken();
            System.out.println(lang);
        }
    }
}

Execution result:

java
,
c
,
c++
,
c#
,
scala
,
xml
,
javascript