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Questions and Answers
How does data abstraction aid modifiability?
How does data abstraction aid modifiability?
What is one advantage of data abstraction related to reliability?
What is one advantage of data abstraction related to reliability?
What is a language requirement for Abstract Data Types (ADTs)?
What is a language requirement for Abstract Data Types (ADTs)?
Why is reducing the range of code and variables important in data abstraction?
Why is reducing the range of code and variables important in data abstraction?
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What does data abstraction provide as a method of program organization?
What does data abstraction provide as a method of program organization?
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Study Notes
The Concept of Abstraction
- Abstraction is a fundamental concept in programming and computer science.
- It involves representing an entity by including only its most significant attributes.
Introduction to Data Abstraction
- An abstract data type is a user-defined data type that satisfies two conditions:
- The representation of objects of the type is hidden from the program units that use these objects.
- The only operations possible are those provided in the type's definition.
- The declarations of the type and the protocols of the operations on objects of the type are contained in a single syntactic unit.
- Other program units are allowed to create variables of the defined type.
History of Abstraction in Programming Languages
- Nearly all programming languages support process abstraction with subprograms.
- Nearly all programming languages designed since 1980 support data abstraction.
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Description
Test your knowledge on abstract data types, data abstraction, design issues for abstract data types, language examples, parameterized abstract data types, and encapsulation constructs with this quiz.