File Size Example in Java

import java.io.File;

public class FileSizeExample 
{
    public static void main(String[] args)
    {
File file =new File("c:\\java_xml_logo.jpg");

if(file.exists()){

double bytes = file.length();
double kilobytes = (bytes / 1024);
double megabytes = (kilobytes / 1024);
double gigabytes = (megabytes / 1024);
double terabytes = (gigabytes / 1024);
double petabytes = (terabytes / 1024);
double exabytes = (petabytes / 1024);
double zettabytes = (exabytes / 1024);
double yottabytes = (zettabytes / 1024);

System.out.println("bytes : " + bytes);
System.out.println("kilobytes : " + kilobytes);
System.out.println("megabytes : " + megabytes);
System.out.println("gigabytes : " + gigabytes);
System.out.println("terabytes : " + terabytes);
System.out.println("petabytes : " + petabytes);
System.out.println("exabytes : " + exabytes);
System.out.println("zettabytes : " + zettabytes);
System.out.println("yottabytes : " + yottabytes);
}else{
System.out.println("File does not exists!");
}

    }
}