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Here is the reading for this work (not that you would need it J)
Consider a typical house in which there are several bedrooms, a kitchen, and a laundry room-each with a distinct function. You sleep in the bedroom, you wash clothes in the laundry room, and you cook in the kitchen. Each room encapsulates all the items needed to complete the necessary tasks.
What you have is a set of well-defined components: Each provides a single service to communicate with the other components using simple messages when something needs to be done. If you consider a kitchen, you see it is also composed of several, smaller components, including the oven, refrigerator, and microwave. Top-level objects are composed of smaller components that do the actual work. This perspective is a very natural way of looking at our world, and one with which we are all familiar. We do the same thing in object-oriented programming:
Consider the microwave oven in your kitchen, using the object-oriented thinking.
Top-Level Objects
Communicates With
Incoming Messages
Outgoing Messages
Assume you work for a cosmetics corporation and have been asked to manage a project team that will investigate whether or not your company should start to sell its products directly to customers through the internet.
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You can add in to the program I made below. It is incomplete but you can use it so that you would have a quicker time to complete the program. Step by step explanations would help me since I am an online learner
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