dcsimg
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX


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

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
 
Thanks for your registration, follow us on our social networks to keep up-to-date