Kotlin Program: Lambda expression for finding the square of a number

Kotlin Lambda: Exercise-2 with Solution

Write a Kotlin program that implements a lambda expression to find the square of a number and return the result.

Sample Solution:

Kotlin Code:

fun main() {
    val square: (Int) -> Int = { num -> num * num }

    val number = 7

    val result = square(number)
    println("The square of $number is: $result")
}

Sample Output:

The square of 7 is: 49

Explanation:

In the above exercise -

At first we declare a lambda expression square of type (Int) -> Int, which takes an integer num as an input parameter and returns its square (num * num). We assign the lambda expression to a variable square.

Inside the "main()" function, we define a number "number". We then invoke the square lambda expression by passing "number" as an argument and store the result in the result variable. Finally, we print the result.

Kotlin Editor:

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