Else–if ladder in C++ - Mini Project: Build & Apply

Else-if ladder

📖 Scenario: You are creating a simple program that categorizes a person's age group based on their age. This is useful in many real-life situations like assigning age-appropriate activities or content.

🎯 Goal: Build a C++ program that uses an else-if ladder to print the correct age group for a given age.

📋 What You'll Learn

Create an integer variable called age with the value 25

Create an integer variable called ageGroup to store the category code

Use an else-if ladder to assign ageGroup based on age: 1 for child (0-12), 2 for teenager (13-19), 3 for adult (20-59), 4 for senior (60+)

Print the ageGroup variable

💡 Why This Matters

🌍 Real World

Age group classification is used in schools, healthcare, marketing, and entertainment to provide age-appropriate services and content.

💼 Career

Understanding conditional statements like else-if ladders is fundamental for software developers to control program flow based on different conditions.

1

Create the age variable

Create an integer variable called age and set it to 25.

C++

int age = 25;  // Your code here

Need a hint?

Use int to declare an integer variable named age and assign it the value 25.

2

Create the ageGroup variable

Create an integer variable called ageGroup and initialize it to 0.

C++

int age = 25;
int ageGroup = 0;  // Your code here

Need a hint?

Declare ageGroup as an integer and set it to zero to start.

3

Use an else-if ladder to assign ageGroup

Write an if-else if ladder to assign ageGroup based on age: set ageGroup = 1 if age is between 0 and 12 inclusive, ageGroup = 2 if between 13 and 19 inclusive, ageGroup = 3 if between 20 and 59 inclusive, and ageGroup = 4 if 60 or above.

C++

int age = 25;
int ageGroup = 0;
// Your code here

Need a hint?

Use multiple else if statements to check the age ranges and assign the correct ageGroup value.

4

Print the ageGroup

Write a std::cout statement to print the value of ageGroup.

C++

int age = 25;
int ageGroup = 0;

if (age >= 0 && age = 13 && age = 20 && age = 60) {
    ageGroup = 4;
}

// Your code here

Need a hint?

Use std::cout << ageGroup << std::endl; to print the value of ageGroup.