What is CharSequenceUtils.toCharArray in Java?

toCharArray() is a staticmethods in Java that can be called without creating an object of the class. method of the CharSequenceUtils class that is used to convert the given character sequence of CharSequence type to a character array.

How to import CharSequenceUtils

The definition of CharSequenceUtils can be found in the Apache Commons Lang package, which we can add to the Maven project by adding the following dependency to the pom.xml file.

<dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.12.0</version>
</dependency>

For other versions of the commons-lang package, refer to the Maven Repository.

You can import the CharSequenceUtils class as follows.

import org.apache.commons.lang3.CharSequenceUtils;

Syntax

public static char[] toCharArray(final CharSequence source)

Parameters

source: The character sequence to convert to an array.

Return value

This method returns the equivalent character array.

Code

import org.apache.commons.lang3.CharSequenceUtils;
import java.util.Arrays;
public class Main{
    public static void main(String[] args){
        String characterSequence = "hello-educative";
        System.out.printf("The output of CharSequenceUtils.toCharArray() for the string - '%s' is '%s'", characterSequence, Arrays.toString(CharSequenceUtils.toCharArray(characterSequence)));
        System.out.println();
        characterSequence = null;
        System.out.printf("The output of CharSequenceUtils.toCharArray() for the string - '%s' is '%s'", characterSequence, Arrays.toString(CharSequenceUtils.toCharArray(characterSequence)));
        System.out.println();
    }
}

Output

The output of CharSequenceUtils.toCharArray() for the string - 'hello-educative' is '[h, e, l, l, o, -, e, d, u, c, a, t, i, v, e]'
The output of CharSequenceUtils.toCharArray() for the string - 'null' is '[]'

Explanation

Example 1

  • characterSequence = "hello-educative"

The method returns [h, e, l, l, o, -, e, d, u, c, a, t, i, v, e] where the input string is converted to an array.

Example 2

  • characterSequence = null

The method returns [] because the input string is null.

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