Assignment operators in C++ - Mini Project: Build & Apply

Assignment Operators in C++

📖 Scenario: You are helping a small shop keep track of the number of items in stock. You will use assignment operators to update the stock count as items are added or sold.

🎯 Goal: Build a simple C++ program that uses assignment operators to update the stock count of items in a shop.

📋 What You'll Learn

Create an integer variable stock with an initial value.

Create an integer variable new_arrivals to represent items added to stock.

Use assignment operators += and -= to update stock.

Print the final value of stock.

💡 Why This Matters

🌍 Real World

Shops and businesses often need to keep track of inventory and update counts as items arrive or are sold.

💼 Career

Understanding assignment operators is essential for managing data and performing calculations in software development.

1

Create the initial stock variable

Create an integer variable called stock and set it to 50 to represent the starting number of items in stock.

C++

// Create an integer variable called stock and set it to 50
// Your code here

Need a hint?

Use int stock = 50; to create the variable.

2

Add new arrivals variable

Create an integer variable called new_arrivals and set it to 20 to represent new items added to the stock.

C++

int stock = 50;
// Create an integer variable called new_arrivals and set it to 20
// Your code here

Need a hint?

Use int new_arrivals = 20; to create the variable.

3

Update stock using assignment operators

Use the += operator to add new_arrivals to stock. Then use the -= operator to subtract 15 items sold from stock.

C++

int stock = 50;
int new_arrivals = 20;
// Add new_arrivals to stock using +=
// Subtract 15 from stock using -=
// Your code here

Need a hint?

Use stock += new_arrivals; and stock -= 15; to update the stock.

4

Print the final stock count

Write a std::cout statement to print the text "Final stock: " followed by the value of stock.

C++

int stock = 50;
int new_arrivals = 20;
stock += new_arrivals;
stock -= 15;
// Print the final stock count
// Your code here

Need a hint?

Use std::cout << "Final stock: " << stock << std::endl; to print the result.