Home » Java programming language

Java FileOutputStream close() Method with Example

FileOutputStream Class close() method: Here, we are going to learn about the close() method of FileOutputStream Class with its syntax and example.
Submitted by Preeti Jain, on April 01, 2020

FileOutputStream Class close() method

• close() method is available in java.io package.
• close() method is used to close this FileOutputStream and free all system resources linked with this stream.
• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• close() method does not throw an exception at the time of closing the stream.

Syntax:

    public void close();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java program to demonstrate the example 
// of void close() method of FileOutputStream

import java.io.*;

public class CloseOfFOS {
 public static void main(String[] args) throws Exception {
  FileOutputStream fos_stm = null;

  try {
   // Instantiates FileOutputStream
   fos_stm = new FileOutputStream("D:\\includehelp.txt");

   // By using close() method is to close
   // close the stream     
   fos_stm.close();

   // when we call write() method after
   // closing the stream will result an exception
   fos_stm.write(100);
   fos_stm.flush();
   fos_stm.close();
  } catch (Exception ex) {
   System.out.println("Stream Closed Before...!!!!");
  } finally {
   // with the help of this block is to
   // free all necessary resources linked
   // with the stream
   if (fos_stm != null) {
    fos_stm.close();
   }
  }
 }
}

Output

Stream Closed Before...!!!!