What are application level classes in Java?

Question

I am a beginner in java, I just started reading about JVM internals. I was going through the hierarchy of class loaders. I found out that system class loader takes care of loading all the application level classes into the JVM. So I want to know what are the application level classes exactly? Source : https://www.baeldung.com/java-classloaders

Answer 1

As the name suggests, the application level classes are the classes that belong to the application - i.e., classes that aren't part of the platform, such as the JDK's classes.