kalaiselvan369

package api


// since the class is declared as internal, it is accessible to all the packages 
// that are declared inside the same module.
internal class ApiClient

kalaiselvan369

// top level private property
private var score = 0

// top level private class
private class Batsman() {
    fun hitSix() = 6
}

// top level private function
private fun recordScore(run: Int) {

kalaiselvan369

fun main() {
    // constructor is a special type of member function that instantiate the class
    val elephant = Elephant()
    println(elephant)

    val employee = Employee("Ram")
    println(employee)

    val student = Student("Arun")
    println(student.toString())

kalaiselvan369

fun main() {
    val dog = Dog()
    dog.bark()
}

// class is a user defined data type
class Dog {

    // characteristics/properties of a class
    val legs: Int = 4

kalaiselvan369

fun main() {
    var j = false
    for (i in 1..112) {
        if (i == 10) {
            println(true) 
            j = true // side effect
        }
    }
}

kalaiselvan369

fun main() {

    val n = 130

    if(n in 100..200)
        println("$n is a member of 100 to 200")

    inFloatRange(4.5)
}

kalaiselvan369

fun main() {

    val numbers = listOf<Int>(1, 2, 3, 4)
    for(n in numbers) {
        print(n)
    }

    println()

    for (n in 1..5) {

kalaiselvan369

fun main() {
  
   // increment and decrement operators

    var i = 0
    val j = i++ // post increment

    var k = 0
    val l = ++k // pre increment
    println("j:$j , l:$l") // prints j:0 , l:2

kalaiselvan369

fun main() {

    // assignment operators
    var sum = 3
    sum += 3
    println(sum)

    var sub = 13
    sub -= 3
    println(sub)

kalaiselvan369

fun main() {
    val a: Int = 100
    val boxedA: Int? = a
    val anotherBoxedA: Int? = a
    // === means referential equality
    println(boxedA === anotherBoxedA) // true
    //JVM has predefined values for int between -128 to 127 hence above statement is true


    val b: Int = 10000