// Tutorial //

How to Convert String to Array in Java

Published on August 3, 2022
Default avatar
By Pankaj
Developer and author at DigitalOcean.
How to Convert String to Array in Java

While we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.

Sometimes we have to split String to array based on delimiters or some regular expression. For example, reading a CSV file line and parsing them to get all the data to a String array. In this tutorial, we will learn how to convert String to Array in Java program.

String to Array in Java

String class split(String regex) can be used to convert String to array in java. If you are working with java regular expression, you can also use Pattern class split(String regex) method. Let’s see how to convert String to an array with a simple java class example.

package com.journaldev.util;

import java.util.Arrays;
import java.util.regex.Pattern;

public class StringToArrayExample {

    /**
     * This class shows how to convert String to String Array in Java
     * @param args
     */
    public static void main(String[] args) {
        String line = "My name is Pankaj";
        //using String split function
        String[] words = line.split(" ");
        System.out.println(Arrays.toString(words));
        //using java.util.regex Pattern
        Pattern pattern = Pattern.compile(" ");
        words = pattern.split(line);
        System.out.println(Arrays.toString(words));
    }
}

The output of the above program is:

[My, name, is, Pankaj]
[My, name, is, Pankaj]
String To Array Java
Convert String To Array in Java

Note that Java provides a legacy class StringTokenizer also but you should not use it because it doesn’t have an option for a regular expression and using it is confusing. We can use Java regular expressions also to split String into String array in java, learn more about java regular expression.


Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in our Questions & Answers section, find tutorials and tools that will help you grow as a developer and scale your project or business, and subscribe to topics of interest.

Sign up
About the authors
Default avatar
Pankaj

author

Developer and author at DigitalOcean.

Still looking for an answer?

Was this helpful?

I appreciate your work , thanks for all the informative blog posts.

- anony