Java PushbackInputStream .available ()

public int available()  throws IOException

import java.io.*;
// ww  w.java2s  .c o m
public class Main {

   public static void main(String[] args) {
      byte[] arrByte = new byte[1024];
      byte[] byteArray = new byte[]{'j', 'a', 'v', 'a', '2','s','.','c','o','m'};

      try {
         InputStream is = new ByteArrayInputStream(byteArray);
         PushbackInputStream pis = new PushbackInputStream(is);

         System.out.println(pis.available());

         for (int i = 0; i < byteArray.length; i++) {

            arrByte[i] = (byte) pis.read();
            
            System.out.println((char) arrByte[i]);
         }

      } catch (Exception ex) {
         ex.printStackTrace();
      }
   }
}