课程: Java Object-Oriented Programming
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What is abstraction?
- [Instructor] In software development we use abstraction to hide implementation complexity. This complexity could be from an algorithm, EPI or design. And the goal of abstraction is to generalize the features of a given system. If a software product uses abstraction it should be able to provide a user with an example input, output in a broad description of what the system does without going into the technical details. Consider someone making coffee with a pod coffee machine. The person knows they need to provide the machine with water and the specific coffee pod but they don't know exactly how the coffee is made. They don't need to know how the coffee machine works internally in order to brew a fresh cup of coffee. Someone else created the pod coffee machine to hide all the details of exactly how the coffee is made. If you want to make a cup of coffee, you just interact with the simple interface, providing the inputs…
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内容
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What is abstraction?1 分钟 47 秒
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Using abstract classes in Java to reduce code complexity5 分钟 59 秒
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Using interfaces in Java to provide conformity5 分钟 1 秒
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Discovering abstraction in Java source code4 分钟 55 秒
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Challenge: Leverage abstraction to write simpler applications1 分钟 19 秒
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Solution: Leverage abstraction to write simpler applications2 分钟 58 秒
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