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OptionalLong 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 OptionalLong.This non-empty string representation is suitable for debugging. The exact presentation format is unspecified and may vary between implementations and versions.

Syntax:

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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
// OptionalLong.toString() method
  
import java.util.OptionalLong;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // create a OptionalLong
        OptionalLong opLong
            = OptionalLong.of(21342536475643L);
  
        // get value using toString
        String value = opLong.toString();
  
        // print value
        System.out.print("Value: " + value);
    }
}
Output:
Value: OptionalLong[21342536475643]

Program 2:




// Java program to demonstrate
// OptionalLong.toString() method
  
import java.util.OptionalLong;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // create a empty OptionalLong
        OptionalLong opLong
            = OptionalLong.empty();
  
        // get value using toString
        String value = opLong.toString();
  
        // print value
        System.out.print("Value: " + value);
    }
}
Output:
Value: OptionalLong.empty

References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalLong.html#toString()




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