Android APIs
public abstract @interface

Nullable

implements Annotation
android.support.annotation.Nullable

Class Overview

Denotes that a parameter, field or method return value can be null.

When decorating a method call parameter, this denotes that the parameter can legitimately be null and the method will gracefully deal with it. Typically used on optional parameters.

When decorating a method, this denotes the method might legitimately return null.

This is a marker annotation and it has no specific attributes.

Summary

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Inherited Methods
From interface java.lang.annotation.Annotation