Number literal formats (underscore, hex, binary) in Kotlin - Mini Project: Build & Apply

Number literal formats (underscore, hex, binary)

📖 Scenario: You are working on a Kotlin program that needs to handle different types of number formats. These include numbers with underscores for readability, hexadecimal numbers, and binary numbers.

🎯 Goal: Build a Kotlin program that creates variables using different number literal formats and then prints their decimal values.

📋 What You'll Learn

Create variables using underscore in number literals

Create variables using hexadecimal number literals

Create variables using binary number literals

Print the decimal values of all variables

💡 Why This Matters

🌍 Real World

Using different number formats helps programmers read and write numbers clearly, especially in areas like color codes, flags, or large counts.

💼 Career

Understanding number literals is important for software developers working with low-level data, graphics, or configuration settings.

1

Create a variable with an underscore in the number literal

Create a variable called population and set it to the number 1_000_000 using underscores to separate the thousands.

Kotlin

// Your code here

Need a hint?

Use underscores inside the number to make it easier to read, like 1_000_000.

2

Create a variable with a hexadecimal number literal

Create a variable called colorCode and set it to the hexadecimal number 0xFF5733.

Kotlin

val population = 1_000_000
// Your code here

Need a hint?

Hexadecimal numbers start with 0x followed by digits and letters A-F.

3

Create a variable with a binary number literal

Create a variable called flags and set it to the binary number 0b101010.

Kotlin

val population = 1_000_000
val colorCode = 0xFF5733
// Your code here

Need a hint?

Binary numbers start with 0b followed by only 0s and 1s.

4

Print the decimal values of all variables

Write println statements to print the values of population, colorCode, and flags.

Kotlin

val population = 1_000_000
val colorCode = 0xFF5733
val flags = 0b101010
// Your code here

Need a hint?

Use println(variableName) to show each variable's value on its own line.