Returns the fully qualified name of this package. This is also known as the package's canonical name.returnthe fully qualified name of this package, or an empty name if this is an unnamed packagejls36.7 Fully Qualified Names and Canonical Names
Returns {@code true} is this is an unnamed package and {@code false} otherwise.return{@code true} is this is an unnamed package and {@code false} otherwisejls37.4.2 Unnamed Packages