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Chapter 7: Problem 19

__________________ is an object's ability to contain and manipulate its own data.

Short Answer

Expert verified
Answer: The term is "encapsulation." Encapsulation is important because it allows for data hiding and abstraction, which maintains the integrity of the data and ensures that the object operates as intended. By keeping an object's data within the object itself and providing specific methods for access and manipulation, we can control how the data is used and prevent unauthorized access.

Step by step solution

01

Identify the term

The term we are looking for is "encapsulation."
02

Define encapsulation

Encapsulation is a fundamental principle in object-oriented programming, which refers to an object's ability to contain (store) and manipulate (manage) its own data.
03

Explain the importance of encapsulation

Encapsulation is important because it allows for data hiding and abstraction. By keeping an object's data within the object itself, and only allowing access to that data through specific methods, we can control how the data is manipulated and prevent unauthorized access. This helps to maintain the integrity of the data and ensures that the object operates as intended.
04

Provide an example

For example, in a school management system, we might have a "Student" object with properties like "Name," "Age," and "Grade." Encapsulation means that we store these properties within the "Student" object and provide methods (functions) to access and modify them, such as "getName()", "getAge()" and "setGrade(newGrade)." This way, we can control how these properties are accessed and modified, ensuring that no invalid data is entered and the "Student" object behaves as expected.

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