A Java Tutorial

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Introduction
Java is one of the most popular languages. It has been successfully applied
to implement large enterprise applications. New generations of phones can
easily run java code and an increasing number of wireless sensor networks
are built using Java. Not only does Java offer the possibility of implementing
stand alone applications but it also enables programmers to write distributed
code by taking advantage of a rich set of libraries such as sockets.


Learning outcome
In this lab you will perform the following activities:
• a basic Java hello world program
• write and run a program using the Eclipse IDE
• write some simple applications
• write a client server application based on the TCP protocol
The student should complete all tasks. Please note that this is not
a comprehensive guide on object-oriented programming and Java.
It is rather a sketch of some basic concepts that need to be enriched
and completed by your tutor.

Hello World Java Program
In the following we describe a basic Java program that can be used to print
the message Hello World! on the screen.