Java IO Tutorial - Java FileInputStream.getFD()

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Syntax

FileInputStream.getFD() has the following syntax.

public final FileDescriptor getFD()    throws IOException

Example

In the following code shows how to use FileInputStream.getFD() method.

/*w  w w  . jav a2 s .com*/

import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.IOException;

public class Main {
  public static void main(String[] args) throws IOException {
    FileInputStream fis = new FileInputStream("C://test.txt");

    // get file descriptor
    FileDescriptor fd = fis.getFD();

    // tests if the file is valid
    boolean bool = fd.valid();

    System.out.println("Valid file: " + bool);

  }
}

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