Data Types & Variables
Learn about variables and the various data types that are supported in Kotlin.
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Key Concepts
Review core concepts you need to learn to master this subject
Mutable Variables
Immutable Variables
Type Inference
String Concatenation
String Templates
Built-in Properties and Functions
Character Escape Sequences
Arithmetic Operators
Mutable Variables
Mutable Variables
var age = 25
age = 26
A mutable variable is declared with the var keyword and represents a value that is expected to change throughout a program.
Data Types & Variables
Lesson 1 of 3
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How you'll master it
Stress-test your knowledge with quizzes that help commit syntax to memory
Data Types & Variables
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