Java Network Programming
by Elliotte Rusty Harold


The unconfirmed error reports are from readers.  They have not yet been 
approved or disproved by the author or editor and represent solely the
opinion of the reader.


This page was updated March 17, 2006.


Here's the key to the markup:

        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification

UNCONFIRMED errors and coments from readers:

[87] In the bottome example, I had a problem related to a deprecated method.

The problem is that the method readLine(), which reads bytes and converts 
it to characters, was deprecated since the release of Java 1.1 so it's 
not possible to apply to DataInputStream object.

The way I found to solve this problem is the following:

BufferedReader htmlDoc = new BufferedReader(new 
InputStreamReader(u.openStream()));

where "u" is an URL object and htmlDoc is a BufferReader object.


[181] I have the 6/99 printing of this book and when I typed in this 
example in the try block in the lookUpNames method and tried to use it, 
I kept getting an error:

netscape.security.AppletSecurityException: security. Couldn't connect to 
'rs.internic.net' with origin from ''.

I have also tried the example I downloaded from this website and the same 
error occurs. 


{187}  In the middle of the page, change "//end try" to "//end catch". 


[287] On the bottom of the page, you say in the toExternatForm method 
for mailto:

"it assumes the username has been stored in the URL's host 
field".  

In the paragrap you discussed putting the username in the 
File field.  You then write the correct method using the 
File field for username instead of the host field. 


{291} On the top of this page in the return of your getContentType() 
method you should have quotes around "text/plain", since it is a 
String return type.  You also have a mistaken quote at the beginning 
before the word "return".