Expected Outcome: After completing this exercise, the students will be able to:

$1.$ Choose apporiate apporiate structural pattern.

$2.$ Justify their selection. Course Learning Outcome:

$1.$ CLO $1$: Recognize the principles, strategies, and process of software design and

architecture. $2.$ CLO $2$: Analyze an existing software architecture or design. $3.$ CLO $3$: Differentiate how various architectural styles and design patterns enhance and

degrade a system$$s functional$-$and non$-$functional properties. $4.$ CLO $4$: Justify architecture and$/$or design given a collection of requirements.

Tool needed: Netbeans

Question$1$ : Composite pattern. You have been asked to create a playlist application that will be used on Android devices $($using the Java language$).$ We will assume that each playlist can be composed of songs or other playlists, or a combination of both.

Your project manager has told you that the composite pattern is best used in this situation. The following UML class diagram that communicates the application$$s objects and relationships using the composite pattern.

In this assignment you are required to complete the provided code. $($Note: With the exception of the Playlist class, you do not need to actually implement the methods, just write filler comments $($eg$.,//$ play song$).$ With the Playlist class, write out the method to add songs to the playlist$).$