Step by Step solution about How to resolve the algorithm Topic variable step by step in the Kotlin programming language

Kotlin Code Analysis:

The provided Kotlin code is a simple example that demonstrates the use of the let function. Here's a breakdown of what the code does:

1. Lambda with it parameter: The code starts by defining a lambda function that takes a single parameter of type Int and is represented by the variable it.

2. let function: The lambda function is then passed as an argument to the let function. The let function executes the lambda with the value provided as its argument. In this case, the value 3 is passed to the lambda.

3. Lambda body: Within the lambda body, several operations are performed on the value of it:

   • println(it): Prints the value of it (which is 3) to the console.
   • println(it * it): Squares the value of it (3 * 3) and prints the result (9) to the console.
   • println(Math.sqrt(it.toDouble())): Calculates the square root of it converted to a Double and prints the result (approximately 1.7320508075688772) to the console.

Output:

When the code is executed, it produces the following output:

3
9
1.7320508075688772

// version 1.1.2

fun main(args: Array<String>) {
    3.let {
        println(it)
        println(it * it)
        println(Math.sqrt(it.toDouble()))
    }
}