Which method can be used to check null in Java 8?

Use “==” to check a variable’s value . If you set a variable to null with “=” then checking that the variable is equal to null would return true. variableName == null; You can also use “!= ” to check that a value is NOT equal.

Use “==” to check a variable’s value . If you set a variable to null with “=” then checking that the variable is equal to null would return true. variableName == null; You can also use “!= ” to check that a value is NOT equal.

Solution: Using Optional Class ofNullable() method of the Optional class, returns a Non-empty Optional if the given object has a value, otherwise it returns an empty Optional. We can check whether the returned Optional value is empty or non-empty using the isPresent() method.

null still is the way to do it in Java 8 and even Java 11 . Otherwise, it’s like using a smartphone to hammer a nail into the wall, “to show the 2018 way of doing it”.7 Eyl 2018

null still is the way to do it in Java 8 and even Java 11 . Otherwise, it’s like using a smartphone to hammer a nail into the wall, “to show the 2018 way of doing it”.7 Eyl 2018

Solution: Using Optional Class ofNullable() method of the Optional class, returns a Non-empty Optional if the given object has a value, otherwise it returns an empty Optional. We can check whether the returned Optional value is empty or non-empty using the isPresent() method.