Data Class

fun main(args: Array<String>) { 
    val book: Book = Book("Kotlin", "TutorialPoint.com", 5) 
    println("Name of the Book is--"+book.name) // "Kotlin" 
    println("Puclisher Name--"+book.publisher) // "TutorialPoint.com" 
    println("Review of the book is--"+book.reviewScore) // 5 
    book.reviewScore = 7 
    println("Printing all the info all together--"+book.toString()) //using inbuilt function of the data class  
    println("Example of the HasCode function--"+book.hashCode())   
}  
data class Book(val name: String, val publisher: String, var reviewScore: Int)