OptionalDouble toString() method in Java with examples Last Updated : 28 May, 2019 Comments Improve Suggest changes Like Article Like Report The toString() method help us to get a non-empty string representation of this OptionalDouble.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 // OptionalDouble.toString() method import java.util.OptionalDouble; public class GFG { public static void main(String[] args) { // create a OptionalDouble OptionalDouble opDouble = OptionalDouble.of(.3203); // get value using toString String value = opDouble.toString(); // print value System.out.print("Value: " + value); } } Output: Value: OptionalDouble[0.3203] Program 2: Java // Java program to demonstrate // OptionalDouble.toString() method import java.util.OptionalDouble; public class GFG { public static void main(String[] args) { // create a empty OptionalDouble OptionalDouble opDouble = OptionalDouble.empty(); // get value using toString String value = opDouble.toString(); // print value System.out.print("Value: " + value); } } Output: Value: OptionalDouble.empty References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalDouble.html#toString() Comment More infoAdvertise with us Next Article OptionalLong toString() method in Java with examples A AmanSingh2210 Follow Improve Article Tags : Java Java - util package Java-Functions Java-OptionalDouble Practice Tags : Java Similar Reads Optional toString() method in Java with examples The toString() method of java.util.Optional class in Java is used to get the string representation of this Optional instance. Syntax: public String toString() Parameters: This method accepts nothing. Return value: This method returns the string representation of this Optional instance. Below program 1 min read Optional toString() method in Java with examples The toString() method of java.util.Optional class in Java is used to get the string representation of this Optional instance. Syntax: public String toString() Parameters: This method accepts nothing. Return value: This method returns the string representation of this Optional instance. Below program 1 min read Optional toString() method in Java with examples The toString() method of java.util.Optional class in Java is used to get the string representation of this Optional instance. Syntax: public String toString() Parameters: This method accepts nothing. Return value: This method returns the string representation of this Optional instance. Below program 1 min read OptionalLong toString() method in Java with examples 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: public String toString() Parameters: Thi 1 min read OptionalLong toString() method in Java with examples 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: public String toString() Parameters: Thi 1 min read 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 1 min read Like