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Hello, my name is Typhoon.

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And in this lecture of our course, you will learn about the abstract data types in C plus plus.

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So let's get started.

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An abstract data type is a type that consists of a collection of the data and associated operations

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for manipulating the data here.

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So A the abstract data was written like this.

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A The.

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T So the ADT will only mention the list of operations that can be performed, but not the implementation.

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And the implementation itself is hidden, which is why it's called the abstract.

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Abstract.

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So imagine we have a DVD player we usually use in our player time.

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The player has remote control that has a various many buttons, such as ejecting the disc playing or

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stopping the video increasing or decreasing volume and so forth.

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So similar to the ADT, we don't have any idea how the player increases the volume when we press the

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increasing button similar to the operation in the IDE.

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So we just call the increasing operation and then the player does it for us.

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So we don't need to know how the implementation of that.

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We did not know the implementation of that operation here.

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So regarding the process flow, we need to take into account as the ADT implement abstractions, so

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information hiding and encapsulation techniques here.

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So the explanation of these three techniques is abstraction, information, information, hiding and

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encapsulation.

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So first we have abstraction.

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Here, the abstraction is hiding the implementation details of the operations that are available in

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the ADT.

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And we have the actually lets me write this here we have the information hiding information.

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Hiding is a hiding the data which is being abstracted or affected by the implementation.

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And we also have the encapsulation.

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The encapsulation is grouping all similar data and functions into a groups here.

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So.

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Let's actually apply the cplusplus classes to build a user defined a D.

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So in next lecture we will start doing that.