Because of this feature, we do not need to write null statements such as if(value! = null), which is an additional addition to the Kotlin/JVM implementation in Java bytecode. The best example of this is that Kotlin is null-safe. Kotlin removes a lot of template code that requires us to write by hand or generate by IDE or third-party frameworks.

Kotlin: Cleaning Java Bytecode before Release.

In this Kotlin Tutorial, we have learnt how to handle the compilation error caused during assignment of null value to a non-null declared String variable.Posted on March 17, 2023, 9:20 p.m. Var str: String? // variable is declared as nullable It is advised you follow the null safety in kotlin provided by Kotlin type system. In this scenario, caution has to be exercised to handle the most adverse exception ‘NullPointerException’. Declare String variable to allow null using ? operator.

Val str: String // variable is declared as non-nullĢ. Avoid assigning a null value to the non-nullable String variable.

There are two ways to handle this exception. How to Fix Kotlin Compilation Error: “Null can not be a value of a non-null type String” Str = null // this causes compilation errorĮrror:(6, 10) Null can not be a value of a non-null type String try assigning a null value to non-null String variable Var str: String // variable is declared as non-null Let us first recreate the Error scenario using the following example, where we shall declare a variable str as non-nullable, but try to assign a null value. We shall recreate the Error and provide necessary technique to handle the “Kotlin Error Null can not be a value of a non-null type String” This Kotlin Error occurs when a String variable is declared as non-nullable, but assigned a null value in the due course of program. Kotlin Error: Null can not be a value of a non-null type String

Kotlin assign if not null