OptionalInt help us to create an object which may or may not contain a int value. The empty() method returns an empty OptionalInt instance. No value is present for this OptionalInt. So we can say that this method help us to create empty OptionalInt object.
Syntax:
public static OptionalInt empty()
Parameters: This method accepts nothing.
Return value: This method returns an empty OptionalInt.
Below programs illustrate empty() method:
Program 1:
Java
// Java program to demonstrate// OptionalInt.empty() methodimport java.util.OptionalInt;public class GFG { public static void main(String[] args) { // create a OptionalInt // using empty method OptionalInt opInt = OptionalInt.empty(); // Print the created instance System.out.println("OptionalInt: " + opInt.toString()); }} |
Output:
OptionalInt: OptionalInt.empty
References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#empty()