Java.io.FileOutputStream.getChannel() Method

Description

The java.io.FileOutputStream.getChannel() method returns the unique FileChannel object associated with this file output stream.

Declaration

Following is the declaration for java.io.FileOutputStream.getChannel() method:

public FileChannel getChannel()

Parameters

• NA

Return Value

This method returns the file channel associated with this file output stream.

Exception

• NA

Example

The following example shows the usage of java.io.FileOutputStream.getChannel() method.

package com.tutorialspoint;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class FileOutputStreamDemo {
   public static void main(String[] args) throws IOException {
      FileOutputStream fos = null;
      FileChannel fc = null;
      long pos;
      byte b[] = {65, 66, 67, 68, 69};
      
      try{
         // create new file output stream
         fos=new FileOutputStream("C://test.txt");
         
         // write buffer to the output stream
         fos.write(b);
         
         // pushes stream content to the underlying file
         fos.flush();
         
         // returns file channel associated with this stream
         fc = fos.getChannel();
         
         // returns the number of bytes written
         pos = fc.position();
         
         // prints
         System.out.print(pos);
         
      }catch(Exception ex){
         // if an error occurs
         ex.printStackTrace();
      }finally{
         if(fos!=null)
            fos.close();
         if(fc!=null)
            fc.close();
      }
   }
}

Let us compile and run the above program, this will produce the following result:

Position: 5