FileOutputStream getFD() in Java

getFD(): This method is available in the java.io.FileOutputStream class of Java.

Syntax:

FileDescriptor java.io.FileOutputStream.getFD() throws IOException

This method returns the file descriptor associated with this stream.

Parameters: NA

Returns: the FileDescriptor object that represents the connection to the file in the file system being used by this FileOutputStream object.

Throws:

IOException - if an I/O error occurs.

Approach

Java

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileOutputStreamgetFD {
    public static void main(String[] args) throws IOException {

        String pathname = "D:\\hello.txt";
        File file = new File(pathname);
        FileOutputStream fileOutputStream = 
                      new FileOutputStream(file);

        System.out.println(fileOutputStream.getFD());

        fileOutputStream.close();
    }
}

Output:

java.io.FileDescriptor@182decdb