What is FileUtils.byteCountToDisplaySize in Java?

How to import `FileUtils`

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

<dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.11.0</version>
</dependency>

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

You can import the FileUtils class as follows:

import org.apache.commons.io.FileUtils;

Syntax

public static String byteCountToDisplaySize(final BigInteger size)

Parameters

final BigInteger size: This is the number of bytes.

Return value

This method returns a human-readable display value that includes the units: EB, PB, TB, GB, MB, KB, or bytes.

import org.apache.commons.io.FileUtils;
public class Main{
    public static void main(String[] args){
      
      // Example 1
      long fileSize = 1234542L;
      System.out.printf("The output of FileUtils.byteCountToDisplaySize(%s) is '%s'", fileSize, FileUtils.byteCountToDisplaySize(fileSize));
      System.out.println();
      // Example 2
      fileSize = 12345423432L;
      System.out.printf("The output of FileUtils.byteCountToDisplaySize(%s) is '%s'", fileSize, FileUtils.byteCountToDisplaySize(fileSize));
      System.out.println();
    }
}