4. DataOutputStream, OutputStream hierarchy

• Class java.io.DataOutputStream

  • defined in the java.io.OutputStream class hierarchy

  • DataOutputStream implements DataOutput interface

  • DataOutputStream writes primitive Java data types to an output stream in a portable way

  • the program can read the data back in using the DataInputStream object

• Attaching a binary output stream to a file invloves

  
      DataOutputStream        writes primitive Java data types to the stream
      BufferedOutputStream    creates a buffer for the stream
      FileOutputStream        connects the stream to a file