Why string handling matters in Kotlin - See It in Action

Why string handling matters

📖 Scenario: Imagine you are creating a simple contact list app. You need to store names and then check if a certain name is in the list. Handling strings correctly helps you find names easily and avoid mistakes.

🎯 Goal: You will build a small Kotlin program that stores a list of names, sets a name to search for, checks if that name is in the list, and then prints a message showing the result.

📋 What You'll Learn

Create a list of names with exact values

Create a variable to hold the name to search

Use a condition to check if the name is in the list

Print a message showing if the name was found or not

💡 Why This Matters

🌍 Real World

String handling is used in apps to search contacts, filter messages, or check user input.

💼 Career

Many programming jobs require working with text data, so knowing how to handle strings is a key skill.

1

Create a list of names

Create a list called names with these exact values: "Alice", "Bob", "Charlie", "Diana", "Eve"

Kotlin

# Create a list called names with the given names
// Your code here

Need a hint?

Use listOf to create a list of strings.

2

Set the name to search

Create a variable called searchName and set it to the string "Charlie"

Kotlin

val names = listOf("Alice", "Bob", "Charlie", "Diana", "Eve")
// Create a variable searchName and set it to "Charlie"
// Your code here

Need a hint?

Use val to create a variable holding the string.

3

Check if the name is in the list

Create a variable called found and set it to the result of checking if searchName is in the names list using the contains method

Kotlin

val names = listOf("Alice", "Bob", "Charlie", "Diana", "Eve")
val searchName = "Charlie"
// Create a variable found that checks if searchName is in names
// Your code here

Need a hint?

Use contains to check if a list has a string.

4

Print the result

Write a println statement that prints "Found Charlie in the list!" if found is true, otherwise prints "Charlie was not found."

Kotlin

val names = listOf("Alice", "Bob", "Charlie", "Diana", "Eve")
val searchName = "Charlie"
val found = names.contains(searchName)
// Print a message depending on whether found is true or false
// Your code here

Need a hint?

Use an if statement to print different messages based on found.