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()
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