Why does The requested resource is not available error when I try to navigate to an html page from index.html (Java web project, Tomcat 9)?

Question

Java

Hello! I'm trying to figure out how to write a site in Java, but the first time I try to simply connect two html pages, an error pops up 404 The requested resource is not available. Please tell me how to fix it!! Here is the project structure!

Answer 1

Java™ Servlet Specification version 3.1 says:
No need to add html files there.