What is the definition of java program?

Java

I will assume that you mean in a broad spectrum in this answer.

Java is intended to be a cross-platform full programming language.

It has the three (or four) control structures necessary for any program:

Sequence, Descisions, and Loops (and Modules, functions and classes).

This means that it can make programs similar to anything that you have

come across, albeit, some tricks may need to be used for some of them.

Also, due to a huge GUI API, Java is also very capable in creating programs

similar to WordPad or many of the games you may find online. As a matter

of fact, a lot of those games are written in Java.

No. I don't work for Oracle or Sun Microsystems, I just like Java...