You want to create a PHP class 'Car' that can store the car's color and speed, and has a method to accelerate by increasing speed. Which approach best uses OOP principles?

hard📝 Application Q8 of 15

PHP - Classes and Objects

ACreate separate functions for color and speed without a class

BUse global variables for color and speed, and a function accelerate() outside the class

CDefine properties for color and speed, and a method accelerate() that increases speed

DStore color and speed in arrays and update speed by array index

Step-by-Step Solution

Solution:

Step 1: Identify OOP principles
OOP uses classes with properties and methods to represent real-world objects and their behaviors.
Step 2: Match options to OOP style
Define properties for color and speed, and a method accelerate() that increases speed uses a class with properties and a method, fitting OOP. Others use procedural or non-OOP approaches.
Final Answer:
Define properties for color and speed, and a method accelerate() that increases speed -> Option C
Quick Check:
OOP = class with properties + methods [OK]

Quick Trick: Use classes to bundle data and behavior together [OK]

Common Mistakes:

Using global variables instead of class properties
Writing functions outside classes for object behavior
Not grouping related data and functions

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You want to create a PHP class 'Car' that can store the car's color and speed, and has a method to accelerate by increasing speed. Which approach best uses OOP principles?

Step 1: Identify OOP principles

Step 2: Match options to OOP style

Final Answer:

Quick Check:

Want More Practice?