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OptionalInt toString() method in Java with examples

Last Updated : 28 May, 2019

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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