var vs val kotlin code example

Example 1: what is difference between val and var kotlin

// Kotlin difference between val and var

// val stands for read-only variable, and cannot be changed. (immutable variable)
fun main() {
    val number = 1
    number = 2	 // Not possible.
}
  
// var stands for variable, and can be changed. (mutable variable)
fun main() {
    var number = 1
    number = number + 9
    println(number) // this would return 10, because number got changed
}

Example 2: kotlin difference between val and var

// Kotlin difference between val and var

// val stands for value, and cannot be changed. (immutable variable)
fun main() {
    var number = 1
}
  
// var stands for variable, and can be changed. (mutable variable)
fun main() {
    var number = 1
    number = number + 9
    println(number) // this would return 10, because number got changed
}

Example 3: kotlin var and val

val declares a read-only property, var a mutable one

Example 4: var and val in kotlin

val and var both are used to declare a variable. var is like general variable and it's known as a mutable variable in kotlin and can be assigned multiple times. val is like Final variable and it's known as immutable in kotlin and can be initialized only single time.