Figure $7\mathrm{.}26$ of the text illustrates Java namespace overloading, which allows the programmer to use the same name for different kinds of definitions, such as classes, methods $($functions$),$ parameters, and labels. In the code of Figure $7\mathrm{.}26,$ there are different appearances of the name A$.$ Describe which of these appearances represent definitions, and specify the kind of definition for each. Then list the other appearances that represent the uses of each definition.