How to get the size of a directory in java?

This can be done with the help of FileUtils.sizeofDirectory(File Name) method of FileUtils class. This gives size in bytes.

import java.io.File;
import org.apache.commons.io.FileUtils;

public class GetDirSize {
   public static void main(String[] args) {
      long size = FileUtils.sizeOfDirectory
      (new File("C:/Windows/Fonts"));
      System.out.println("Size: " + size + " bytes");
   }
}