The Optional class from java.util package is a container object that may or may not contain a non-null value, it is primarily used as a method return type where there is a clear need to represent "no result," and where using null is likely to cause errors.
We can create an empty Optional instance with the help of the empty() method.
Syntax:
public static <T> Optional<T> empty()
This method will return an empty Optional instance with no value.
Example:
public static void main(String[] args) {
Optional<String> emptyOptional = Optional.empty();
if (!emptyOptional.isPresent()) {
System.out.println("The Optional is empty.");
} else {
System.out.println("The Optional is not empty.");
}
}
Output:
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