The toString() method help us to get a non-empty string representation of this OptionalInt.This non-empty string representation is suitable for debugging. The exact presentation format is unspecified and may vary between implementations and versions.
Syntax:
public String toString()
Parameters: This method accepts nothing.
Return value: This method returns the string representation of this instance.
Below programs illustrate toString() method:
Program 1:
// Java program to demonstrate// OptionalInt.toString() method import java.util.OptionalInt; public class GFG { public static void main(String[] args) { // create a OptionalInt OptionalInt opInt = OptionalInt.of(452146); // get value using toString String value = opInt.toString(); // print value System.out.println("String Representation: " + value); }} |
Output:
String Representation: OptionalInt[452146]
Program 2:
// Java program to demonstrate// OptionalInt.toString() method import java.util.OptionalInt; public class GFG { public static void main(String[] args) { // create a OptionalInt OptionalInt opInt = OptionalInt.empty(); // get value using toString String value = opInt.toString(); // print value System.out.println("String Representation: " + value); }} |
Output:
String Representation: OptionalInt.empty
References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#toString()
