Kotlin enum class and Sealed class

 enum class:- 

• Enum constants can  have properties, methods etc
• Each object of enum class  act as separate instance of the class and is separated by commas.
• It increase the readability of  code by assigning pre-defined names to constants.
• An instance of an enum class cannot be created using constructors.

class MyKotlin {
    fun main() {
        println(MyEnum.MONDAY)
        for (i in MyEnum.entries) {
            println(i)
        }
    }

    enum class MyEnum(i: Int, j: Int) {
        SUNDAY(1, 3),
        MONDAY(2, 4),
        TUESDAY(3, 5),
        WEDNESDAY(4, 6),
        THRUSDAY(5, 7),
        FRIDAY(6, 8),
        SATURDAY(7, 9)
    }
}