arsalankhan994

fun main() {

    // Smart Casting
    var studentWithRealObject: Any? = Student()

    if (studentWithRealObject is Student) {
        println("Student name: ${studentWithRealObject.name}")
        println("Student age: ${studentWithRealObject.age}")
    }

arsalankhan994

fun main() {

    // Type Checking
    // Initializing list with String, Int and Boolean value
    val list = listOf<Any>("Erselan Khan", 21, false)

    // loop on above list
    list.forEach {
        when(it) {
            is String -> println("String value is: $it")

arsalankhan994

fun main() {
    val methodInKotlin = MethodInKotlin()
    methodInKotlin.methodWithoutReturnTypeAndNoParameter()
    val first = methodInKotlin.methodWithReturnTypeAndNoParameter()
    println("return type of methodWithReturnTypeAndNoParameter: $first")
    methodInKotlin.methodWithoutReturnTypeWithParameter("Erselan Khan")
    val second = methodInKotlin.methodWithReturnTypeWithParameter("Erselan Khan")
    println("return type of methodWithReturnTypeWithParameter: $second")
}

arsalankhan994

fun main() {

    /*
    Simple object initialization
    */
    val objectInitialization = ObjectInitialization()
    objectInitialization.printMyName("Erselan Khan")
    objectInitialization.addTwoNumbers(firstNumber = 2, secondNumber = 2)
}

arsalankhan994

fun main() {

    // string value
    var stringValue: String = "Erselan Khan"

    println("String value $stringValue")

    // int value
    var intValue: Int = 1

arsalankhan994

public class KeywordsJava {
    public static void main(String[] args) {

        /*
        using final, to assign value only one time
        */
        final String nonChangeableVariable = "Erselan Khan";
        nonChangeableVariable = "Arsalan Khan";
        
        /*

arsalankhan994

fun main() {

    /*
    using val, to assign value only one time
    */
    val assignValueOnlyOneTime = "Erselan Khan"
    assignValueOnlyOneTime = ""

    /*
    using var, to assign value multiple times

arsalankhan994

import java.util.ArrayList;
import java.util.List;

public class MultiConditionsInJava {
    public static void main(String[] args) {
        /*
        switch case -> with Enum value
        */
        State state = State.NOT_STARTED;
        switch (state) {

arsalankhan994

fun main() {

    /*
    when -> with Enum value
    */
    val state = State.values().random()
    printState(state)

    /*
    when -> with Int value

arsalankhan994

import java.util.ArrayList;
import java.util.List;

public class LoopsInJava {
    public static void main(String[] args) {

        List<String> list = new ArrayList<>();
        list.add("Erselan");
        list.add("Khan");