Null Safety
Learn about null safety in Kotlin.
We'll cover the following
Overview
In Kotlin, the nullability of a variable is an integral part of its type. Fortunately, it is quickly determined with a simple ?
.
The infamous NullPointerException
is probably the most common error message that Java programs produce at runtime. It is no coincidence that Tony Hoare, the inventor of the zero references
, describes it as his trillion-dollar mistake.
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