In java, one type is automatically converted to other type (in some cases), In Kotlin we need to explicitly convert the type. In this tutorial we will learn how to do type conversion in Kotlin. Println(book.Type casting is a process of converting one data type to another type, for example – converting int to long, long to double etc. data class Book(val name: String, val authorName: String = "Anupam", val lastModified: Long = 1234567, val rating: Float = 5f, val downloads: Int = 1000) ![]() N is the number of parameters in the constructor. Destructuring DeclarationsĬomponentN() function lets us access each of the arguments specified in the constructor, in the order specified. Note: The equals() method is equivalent to = in kotlin. The first and third object hashcodes are equal hence they are equal. Println("newBook and book are NOT equal") Let’s see how a Book.java POJO class looks like: public class Book ") Kotlin Data Classĭo you get tired of writing thousands of lines of code for your POJO data classes in Java? Every Java Programmer at some stage must have taken a note of the number of lines of code they need to write for classes that just need to store some data. ![]() If you haven’t read the Kotlin Classes post, we recommend you to do so before proceeding. ![]() In this tutorial, we’ll look at Kotlin Data Class.
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