[Fixed] Error: Could not find or load main class

1. Overview

In this tutorial, We'll learn What does "Could not find or load main class" mean?

A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or load main class.

What does this mean, what causes it, and how should you fix it?

The problem is with this java run command

java  command syntax

We have gathered all these solutions from StackOverflow page and arranged in a simple manner to understand easily.

Please read section 2 and 5 to get a clear understanding. Section 3 tells about all areas where we do mistake usually. But, recommend reading the complete article.