TAILIEUCHUNG - Chapter 6 - Classes and Data Abstraction

Data abstraction refers to, providing only essential information to the outside word and hiding their background details ie. to represent the needed information in program without presenting the details. Data abstraction is a programming (and design) technique that relies on the separation of interface and implementation. | Chapter 6: Classes and Data Abstraction Outline Introduction Structure Definitions Accessing Structure Members Implementing a User-Defined Type Time with a struct Implementing a Time Abstract Data Type with a class Class Scope and Accessing Class Members Separating Interface from Implementation Controlling Access to Members Access Functions and Utility Functions Initializing Class Objects: Constructors Using Default Arguments with Constructors Destructors When Constructors and Destructors Are Called Using Set and Get Functions Subtle Trap: Returning a Reference to a private Data Member Default Memberwise Assignment Software Reusability Introduction Object-oriented programming (OOP) Encapsulates data (attributes) and functions (behavior) into packages called classes Information hiding Class objects communicate across well-defined interfaces Implementation details hidden within classes themselves .

• Kỹ thuật lập trình
• Accessing Structure Members
• Implementing a Time Abstract Data Type
• Separating Interface from Implementation
• Controlling Access to Members
• Access Functions and Utility Functions
• Using Default Arguments with Constructors
• Default Memberwise Assignment
• Structure Types
• Declare Structure Variable
• Structure Assignments
• Structures as Function Arguments
• Declaring Objects