Top "Non-nullable" questions

In Kotlin, what is the idiomatic way to deal with nullable values, referencing or converting them

If I have a nullable type Xyz?, I want to reference it or convert it to a non-nullable type Xyz. …

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Make a column nullable in DB2 when Data Capture is enabled

I'm using db2 version 9.7* and it seems impossible to make a NOT NULL column nullable in any straightforward way. Unfortunately …

db2 nullable alter non-nullable notnull
Best explanation for languages without null

Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null. I have …

programming-languages functional-programming null nullpointerexception non-nullable
Create Non-Nullable Types in C#

How to create non-nullable value types like int, bool, etc. in C#?

c# non-nullable
Why is null not allowed for DateTime in C#?

Why it is not allowed to assign null to a DateTime in C#? How has this been implemented? And can …

c# non-nullable
Type Inference failed in a call to 'join' on nullable and non-nullable int

In my Linq, I am trying to make an inner join to a nullable field. Employee and Department have a …

c# linq entity-framework nullable non-nullable
C# creating a non-nullable string. Is it possible? Somehow?

So you can't inherit string. You can't make a non-nullable string. But I want to do this. I want a …

c# string non-nullable
Why @Nonnull annotation checked at runtime?

I have a function with following signature public static String myFunction(@Nonnull String param) When I call it with param …

java intellij-idea non-nullable
Right way to use the @NonNull annotation in Android Studio

I'd like to use the @NonNull annotation in Android, but I can't figure out just the right way to do …

java android annotations non-nullable
Lombok's @NonNull or javax @Nonnull

Lombok's @NonNull VS javax.annotation.Nonnull Which one is better to use for method parameters and when? The answer here …

java null annotations lombok non-nullable