Megabytes

package Tasks;

import java.io.File;

public class FileTest {
    public static void main(String[] args) {
        File fl = new File("C://Users//User//Desktop//Новая папка (3)", "20190418_182427.mp4");
        double bytes = fl.length();
        double kilobytes = bytes / 1024;
        double megabytes = kilobytes / 1024;
        System.out.println(String.format("%.4s", megabytes));
    }
}