import java.io.*;
class FileInputStreamDemo
{
   public static void main(String args[])throws IOException
   {
       FileInputStream fis = new FileInputStream("FileInputStreamDemo.java");
       System.out.println("Available bytes: "+(fis.available()));
       byte arr[] = new byte[50];
       if (fis.read(arr) != 50)
       {
          System.out.println("Could not get 50 bytes");
        }
        System.out.println(new String(arr, 0, 50));
        fis.skip(50);
        if (fis.read(arr) != 50)
        {
            System.out.println("Could not get 50 bytes:");
         }
         System.out.println(new String(arr, 0, 50));
         fis.close();
    }
}