Welcome! Today, we're delving into Kotlin variables, which are critical elements in any programming language. They function as containers that store and handle data. In this lesson, we will explore what they are, learn about assigning values and assigning names to them, and discuss what constants are in Kotlin.
A variable is a slot in memory that stores data, its content can change during the execution of the program. For example, in the snippet below, the value "Alice" held by myName is replaced by "Bob":
Kotlin has two types of variables - val, which is immutable, and var, which is mutable.
In Kotlin, you can reassign values to variables declared with var, but variables declared with val are immutable. Let's assign and reassign a value to myAge to see this in action:
