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Tip of the Day
Language: Java
Expertise: Intermediate
Dec 11, 2018

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Using Optional in Java

With Java version 8, there is an option to assign null value to an object of type Optional.

For example:

Optional optionalVar = Optional.ofNullable(null); 
   //Optional.ofNullable() accepts a null value to be passed as parameter

Also, you can use optionalVar.isPresent() to check if the value is present. true is returned if the value is present.

M S Sridhar
 
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