Java™ How To Program (Early Objects), Tenth Edition

Step 2: Get the Socket’s I/O Streams

In Step 2, the client uses Socket methods getInputStream and getOutputStream to obtain references to the Socket’s InputStream and OutputStream. As we mentioned in the preceding section, we can use the techniques of Chapter 15 to wrap other stream types around the InputStream and OutputStream associated with the Socket. If the server is sending information in the form of actual types, the client should receive the information in the same format. Thus, if the server sends values with an ObjectOutputStream, the client should read those values with an ObjectInputStream.