C++ Counter Class Implementation

Study Notes

Counter Class Implementation

Purpose: The Counter class is designed to maintain and manage a simple integer counter.
Private Member Variable: Contains an integer counter which tracks the current counter value.
Constructor: Initializes the counter with a specified initial value provided by the user during object creation.

Public Methods

call() Method: Increments the counter and returns its current value before the increment occurs.

Main Function Workflow

Initial Value: Preset initial value for the counter is set to 10.
Method Calls: An array of string commands, containing multiple "call" commands, is prepared to trigger the counter.
Output Storage: A vector is utilized to store output values returned from each method call.

Example Execution

Counter Object Creation: An instance of the Counter class is created with the initial value of 10.
Loop Through Calls: The program iterates through the call commands; for each "call", it invokes the call() method and adds the result to the output vector.
Result Display: Finally, the results stored in the output vector are printed to the console.

Important Details

Increment Behavior: The counter starts at the initial value and increases by one for each call.
Vector Usage: The output collection leverages the vector class from the standard library for dynamic array management.

Description

This quiz tests your understanding of creating a class in C++. You will learn how to implement a Counter class with methods to manage its value and understand object-oriented principles in C++. Dive into the basics and see how you can manipulate class objects with simple methods.