Java.io.FilterOutputStream.write() Method

Description

The java.io.FilterOutputStream.write(byte[] b) method writes b.length bytes to this output stream.

Declaration

Following is the declaration for java.io.FilterOutputStream.write(byte[] b) method:

public void write(byte[] b)

Parameters

• b -- source buffer to be wriiten to the stream

Return Value

This method does not return any value.

Exception

• IOException -- if an I/O error occurs.

Example

The following example shows the usage of java.io.FilterOutputStream.write(byte[] b) method.

package com.tutorialspoint;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class FilterOutputStreamDemo {
   public static void main(String[] args) throws Exception {
      
      OutputStream os = null; 
      FilterOutputStream fos = null;
      FileInputStream fis = null;
      byte[] buffer = {65, 66, 67, 68, 69};
      int i=0;
      char c;
      
      try{
         // create output streams
         os = new FileOutputStream("C://test.txt");
         fos = new FilterOutputStream(os);

         // writes buffer to the output stream
         fos.write(buffer);
                  
         // forces byte contents to written out to the stream
         fos.flush();
         
         // create input streams
         fis = new FileInputStream("C://test.txt");
         
         while((i=fis.read())!=-1)
         {
            // converts integer to the character
            c = (char)i;
            
            // prints
            System.out.println("Character read: "+c);
         }
      }catch(IOException e){
         
         // if any I/O error occurs
         System.out.print("Close() is invoked prior to write()");
      }finally{
         
         // releases any system resources associated with the stream
         if(os!=null)
            os.close();
         if(fos!=null)
            fos.close();
      }
   }
}

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

Character read: A
Character read: B
Character read: C
Character read: D
Character read: E