Compile and Run
Save the program as HelloWorld.java. Compile
the program:
Look at the directory (ls), you should
see a file called HelloWorld.class. This file is
generated by the javac compiler. It contain the
bytecode of your source program.
To execute the program, you need to use the JVM:
The name of the source file must matches the name of the
Class, and it is case sensitive --
HelloWorld.java.
When you run the program, you pass the class name to the JVM (java),
i.e. HelloWorld, without the
.class extension.
