Byte Stream in JAVA

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  • Java byte streams are used to perform input and output of 8-bit bytes.
  • Through there are many classes related to byte streams but the most frequently used classes are::
  • FileInputStream and FileOutputStream.
  • Following is an example which makes use of these two classes to copy an input file into an output file:
import java.io.*;
public class CopyFile
{
      public static void main(String args[]) throws IOException
      {
             FileInputStream in=null;
             FileOutputStream out=null;
     
             try
            {
                  in =new FileInputStream("input.txt");
                  out =new FileOutputStream("output.txt");

                  int c;
                  while((c=in.read())!=-1)
                  {
                           out.write(c);
                   }
              }
              finally
              {
                     if(in!=null)
                     {
                            in.close();
                      }
                      if(out!=null)
                     {
                            out.close();
                      }
               }
       }
}