Kotlin null safety tutorial in hindi



Hello Friends,

In this tutorial, we will learn about null safety, as kotlin’s type system is aimed at eliminating the danger of null references from code.

Code of this tutorial:

fun main(args: Array<String>) {

    //Non null variable
    var name: String = "Anand"

    //Variable can have null values
    var name1: String? = null

    //Null safe check, It will not call
    //length method if value is null
    //else it will print length of name1

    try {
        //Not null safe variable, So if
        //value will be null, It will raise
        //Null pointer exception, to handel it
        //I have used  try catch block
    } catch(e: Exception) {