var firstname: String = "nenne" //this works Trying to invoke a method on a null objectīy default, a Kotlin variable cannot have a null value.Trying to access a member on a null reference.Null safety doesn’t necessarily mean that nulls don’t exist anymore in Kotlin, it just means that except I say I want to have a nullable variable in my code, I won’t have one. Now after interacting with some Kotlin developers recently, I have come to understand that some think that Kotlin has removed the Null Pointer Exception. The null reference created by Tony Hoare which is also known as his Billion Dollar Mistake has been addressed in the Kotlin type system. In this article, get ready to understand how Kotlin handles nulls and say goodbye to them.Ĭontrary to the picture below, we don’t love you. The previous article was about Kotlin Android Extensions.
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