Get file size : Files « File Input Output « Java

1. Java
2. File Input Output
3. Files

Get file size

   
import java.io.File;

public class Main {

  public static long getFileSize(String filename) {
    File file = new File(filename);

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

  public static void main(String[] args) {

    long size = getFileSize("c:/my.txt");
    System.out.println("Filesize in bytes: " + size);
  }
}

   
    
    
  

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