Java console compiled by, run where the main class cannot be found or cannot be loaded

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When a package is built (assuming the name of the built package is COM), the Java file's COM directory is found, and the compilation can pass, but there is an error when it runs:

"Error: The main class Xx.java could not be found or could not be loaded"

Ignore the various environment variable configuration issues. After trying, the correct solution is as follows:

1. Locate the SRC directory for the Java file;

2. Compiling: "Javac Com/xx.java";

3. Run: "Java com/xx"

And then you find that you can pass.

Java console compiled by, run where the main class cannot be found or cannot be loaded