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.
Read moreWhat is the difference between Optional and null check in Java 8?
In a nutshell, the Optional class includes methods to explicitly deal with the cases where a value is present or absent. However, the advantage compared to null references is that the Optional class forces you to think about the case when the value is not present .
Read moreWhat is the difference between Optional and null check in Java 8?
In a nutshell, the Optional class includes methods to explicitly deal with the cases where a value is present or absent. However, the advantage compared to null references is that the Optional class forces you to think about the case when the value is not present .
Read moreHow do you check for null in Java 8?
Using … != null still is the way to do it in Java 8 and even Java 11.7 Eyl 2018
Read moreHow do you check for null in Java 8?
Using … != null still is the way to do it in Java 8 and even Java 11.7 Eyl 2018
Read moreDoes null check in Java?
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.
Read moreDoes null check in Java?
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.
Read more