15. DataInputStream, binary input stream

• Attaching a binary input stream to a file

  • The FileInputStream object must be instantiated first, its constructor requires a File object or a file name.

  • The BufferedInputStream object must be instantiated next, its constructor taking the FileInputStream object.

  • The DataInputStream is instantiated, its constructor taking the BufferedInputStream object

  
      DataInputStream in =
          new DataInputStream(
          new BufferedInputStream(
          new FileInputStream("myfile.dat")));
  
  

• Note that the DataInputStream implements the DataInput interface