Talking about interface, there are two types of implementations which exists, the pre Java 8 ones where interfaces could contain only abstract methods. But in the recent update of Java 8, where interfaces were allowed to have implementations of methods as well as abstract methods. Kotlin offers similar type of interfaces i.e. Interface in kotlin …
A class which is declared with keyword ‘abstract’ is termed as Abstract Class, these can also be termed as classes which can’t be instantiated. Or in Simple words, we cannot create objects of Abstract classes. Similar to Java, abstract classes in Kotlin can be inherited in sub classes.
Before we jump on and discuss about Kotlin Getters and Setters it is important for us to understand the basic working of Properties in Kotlin.
Having read about the kotlin classes and objects, let’s have a look at initialization of class objects. This can be done using constructors. So in simple words: “A constructor is a special member function which is called when the object is instantiated or created.”
Having read about classes and objects in detail, we now can recall of scenarios in our applications where we create certain classes which act as place holder for the data. Along with data these classes contain basic standard functions and utilities. The common functions these class hold are the getters, the setters, the toString method, …
Before we move ahead with the basic user defined data structure of classes and the ways to use them by the means of Object, let’s have a look at the fundamentals which go inside Kotlin.
Having seen through functions, we have seen a variety of them having varied flavours. In this article here we would be going through functions which are of anonymous type but can be treated as values. By this we mean that we can pass them as arguments to fetch a value, return them directly from a …
If you have had prior experience of programming language, you would be aware about functions. Functions are a group of related statements which are designed to perform a specific task. For example: a function to check if the entered number is even or odd. Functions in kotlin are first class citizens and we declare them …
We have often encountered scenarios where we want to use a function to return a value, like say a function to return a Boolean if passed String contains special characters, this is what exactly we will try to understand in this tutorial. Kotlin is a simple way of doing it by using return statement.
Jump statements are evident to us from the last topic in which we discovered the use of break condition which can be used with or without labels. This topic can be taken as an extension of the same. Break is a statement which is used to end or terminate the flow of control once it …
