How to check a Long for null in java

How do I check a Long value for null in Java?

Will this work?

if ( longValue == null) { return blah; }

Answer

Primitive data types cannot be null. Only Object data types can be null.

There are 8 primitive types in Java:

Data Type	Size	Description
byte	1 byte	Int8
short	2 bytes	Int16
int	4 bytes	Int32
long	8 bytes	Int64
float	4 bytes	Single
double	8 bytes	Double
boolean	1 bit	Boolean

If you use Long (wrapper class for long) then you can check for null‘s:

Long longValue = null;

if(longValue == null)