OptionalInt toString() method in Java with examples

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

// 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

// 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()

OptionalInt toString() method in Java with examples

Explore