Part 7 – REPL


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In part 7 of the Kotlin beginner tutorial, we will learn how to use the REPL tool to quickly try out code snippets on the fly.

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KotlinTutorial.kt
fun main() {
    var a = 5
    val b = 3.0

    println("a = " + a + " b = " + b)

    println("a + b = ${a + b}")
    println("a - b = ${a - b}")
    println("a * b = ${a * b}")
    println("a / b = ${a / b}")
    println("a % b = ${a % b}")

    println("(2 + 2) * 3 = ${(2 + 2) * 3}")

    println("-a = ${-a}")

    a += 2
    println("a += 2: $a")

    println("a++: ${a++}")
    println("++a: ${++a}")

    a -= 2
    println("a -= 2: $a")

    println("a--: ${a--}")
    println("--a: ${--a}")

    a *= 2
    println("a *= 2: $a")

    a /= 2
    println("a /= 2: $a")

    a %= 2
    println("a %= 2: $a")
}