Also known as the Java class file disassembler, the command-line javap tool will output pertinent information about any compiled Java class it is asked to inspect. By default, it simply spits out the ...

This is demonstrated in the next screen snapshot. In this example, a class was declared as public with the name Person, but was saved in a file called Person2.java.

In this example, the content root directory contains class files A.class, B.class, C.class, and D.class. These class files contain a pre-Java 9 version of some application or library.