how to use java to create a program which can communicate between two hosts?

Question

It can be implemented through TCP or UDP. What's the exact code?

Answer 1

What you want to research is "socket programming" in Java. There's not too much to it, but there is a lot to understand before you just start pounding out the code. There is no "exact code" that you are asking for, because it depends on what you want your application to do and how you expect them to communicate. I suggest you start by getting a basic skeleton client and server working, and customize it from there.

I'd suggest doing some searching, for example on javaworld, and you'll find code examples and lessons on how to tie it all together.

http://www.javaworld.com/jw-12-1996/jw-12-sockets.html
http://java.sun.com/docs/books/tutorial/networking/sockets/index.html

Answer 2

i'm attempting to teach myself java/coding/and so forth. i'm perplexed are the solutions to the question suitable if in basic terms entered right into a sparkling textedit or (in my case i'm utilising netbeans) ? this would sound stupid yet i'm nevertheless attempting to get a dangle of the easy language of coding.