Lập trình hướng đối tượng: Session 2 - Data Structures

Abstraction: focuses on the external view of an object, identifying the essential features that distinguish it from all other objects.. Encapsulation: focuses on the implementation of e[r]

Session - Data Structures

Pointers and Arrays Derived Types

Objectives

• Pointers and Arrays

– Pointers

– Arrays and Pointers – Unmodifiable Arrays – Unmodifiable Variables

• Structs

– Member Access – Compactness – Pass By Value

– Passing an Address – Arrow Notation

Review(1)

• A Language for Complex Applications

– Complexity

– Three Languages – A First Example

• Object Terminology

– Abstraction – Encapsulation – Hierarchy

– Modularity

• Compiling Modular Programs

Review(2)

• The four fundamental concepts applied in object-oriented software development are:

Abstraction: focuses on the external view of an object, identifying the essential features that distinguish it from all other objects

Encapsulation: focuses on the implementation of each object; identifying the data that describes its state and developing the algorithms that describe its behavior

Pointers and Arrays

• Pointers and arrays are building blocks of data structures.

• "A data structure is a way of storing data in memory so that it can be used

In-Class Practice

• As an exercise, upgrade the accounting example from the

Compiling Modular Programs reading as follows:

– declare a struct that describes the data for a single transaction

Summary

• Pointers and Arrays

– Pointers

– Arrays and Pointers – Unmodifiable Arrays – Unmodifiable Variables

• Structs

– Member Access – Compactness – Pass By Value

– Passing an Address – Arrow Notation

– Copying

– In-Class Practice