Design Patterns Usage:

Context

The Facade Pattern is used to provide a unified interface to a set of interfaces in a subsystem.

The IO component depicted below provides four individual interfaces through its four classes to write text to a file, read from a file, encrypt$/$decrypt$,$ and $($de$)$compress$.$ These classes offer corresponding static methods for these operations.

Now, with the help of the Facade Pattern, the interface to the component should be unified. After applying the Facade Pattern, it should only be possible to write or read encrypted and compressed texts.