Exercises, examples and other material relating to training module J702. This topic is presented on public courses Learning to Program in Java
, Java Bootcamp
, Java Programming for the Web
In this module we write the simplest of programs - a program which displays the words "Hello World". This shows you how to use the editor, compiler and runtime environment that you'll be using in subsequent models and gives you a minimal framework on which to expand.
Related technical and longer articlesOverview of JavaHello Java World
|Articles and tips on this subject||updated|
|4350||Keyboard reader for Java programming newcomers|
I've added a new class of Keyboard Reader for our Java courses [here], for the earlier examples and exercises just after "Hello World". We want to be able to teach people to write a read - calculate - write program early on, but Java inputs require exception handling, and exceptions are objects, and ...
|2859||Using java, javac, jar, and CLASSPATH - a simple example|
What Version of Java am I running? How do I edit, compile and run a Java program? What does this error message mean? How do I puts lots of classes into a single file, then run them from that file? How do I see what's in that file? How do I get Java to look for a class it needs in a series of ...
|2414||Hello World - a good traditional start to a Java course|
All programming courses, it seems, start with a "Hello World" program. It's almost a tradition and while I'm not one of those people who follows traditions just for their sake, traditions usually are founded on good reason. This one is, and we follow it!
When you come new to a programming language, ...
Examples from our training material
Some modules are available for download
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Topics covered in this module
A first program explained.
Methods and classes.
Blocks and statement structure.
Declaring classes and methods.
Within a statement.
Commenting your source.
The code in operation.
A further program.
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