Get file size - A Java Code Example

This piece of code gets the size of a file in bytes.

import java.io.File;

public class FileUtil {

  public long getFileSize(String filename) {

    File file = new File(filename);

    if (!file.exists() || !file.isFile()) {
      System.out.println("File doesn\'t exist");
      return -1;
    }

    //Here we get the actual size
    return file.length();
  }

  public static void main(String[] args) {
    FileUtil fileutil = new FileUtil();
    long size = fileutil.getFileSize("/temp/myfile1.txt");
    System.out.println("Filesize in bytes: " + size);
  }
}

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