Classes and Objects Discuss the relationship between classes and objects. Give a
ID: 3817820 • Letter: C
Question
Classes and ObjectsDiscuss the relationship between classes and objects.
Give a real-world analogy that depicts the relationship between classes and objects.
Discuss the benefits of having both classes and objects.
Discuss the differences between classes and objects.
Give an example of a programming situation where you could use multiple objects of the same class.
Give an example of a programming situation where you could use multiple objects of different classes.
Discuss any points of confusion you have in distinguishing between classes and objects. Classes and Objects
Discuss the relationship between classes and objects.
Give a real-world analogy that depicts the relationship between classes and objects.
Discuss the benefits of having both classes and objects.
Discuss the differences between classes and objects.
Give an example of a programming situation where you could use multiple objects of the same class.
Give an example of a programming situation where you could use multiple objects of different classes.
Discuss any points of confusion you have in distinguishing between classes and objects.
Discuss the relationship between classes and objects.
Give a real-world analogy that depicts the relationship between classes and objects.
Discuss the benefits of having both classes and objects.
Discuss the differences between classes and objects.
Give an example of a programming situation where you could use multiple objects of the same class.
Give an example of a programming situation where you could use multiple objects of different classes.
Discuss any points of confusion you have in distinguishing between classes and objects. Discuss the relationship between classes and objects.
Give a real-world analogy that depicts the relationship between classes and objects.
Discuss the benefits of having both classes and objects.
Discuss the differences between classes and objects.
Give an example of a programming situation where you could use multiple objects of the same class.
Give an example of a programming situation where you could use multiple objects of different classes.
Discuss any points of confusion you have in distinguishing between classes and objects. Discuss the relationship between classes and objects.
Give a real-world analogy that depicts the relationship between classes and objects.
Discuss the benefits of having both classes and objects.
Discuss the differences between classes and objects.
Give an example of a programming situation where you could use multiple objects of the same class.
Give an example of a programming situation where you could use multiple objects of different classes.
Discuss any points of confusion you have in distinguishing between classes and objects.
Explanation / Answer
Class is a definition while object on the other hand is the instance of that class.A class defines the properties and behavior of the objects. Object represent the real world entities. These words might sound jumble lets understand with an example. Lets say we have a real world scenario where we have to keep records of the employees working in a certain firm A. We create a Employee Class. Now this class would have definitions like name of the employee, his age, his address, his contact number, his salary, methods to calculate salary, methods to calculate bonus etc. Employees themselves are the objects, For e.g. An employee names E, age 42, salary $100k is an object of this class, He represents the real world entity, while the class represents only the definition. Class is a blue print or definition whereas Object is its instance. Classes can define a fixed set of methods and variables which can then be used by numerous objects. This helps to reuse code and creates less work. For e.g. Imagine a BankAccount class which has a method called calculateInterest(). This method just takes input principal amount and rate of interest and calculates interest payable to the account holder. Having define once in BankAccount class, it need not be defined separately for every object. This reduces the work to write and maintain separate code for all bank account holders. Differences between classes and Objects Object is a physical quantity whereas class is logical. Objects can be created many times where as classes are declared once Objects are allocated memory when created where as class is not allocated memory when created While finding out intersection of line segments, multiple objects of a LineSegment class are used to find out points at which they intersect. A 2D polygon class uses multiple objects of Point class, LineSegment class to define its boundary.