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Optional stream() method in Java with examples
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OptionalInt stream() method in Java with examples

Last Updated : 28 May, 2019
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The stream() method help us to get value contain by OptionalInt as IntStream. If a value is present, method returns a sequential IntStream containing only that value, otherwise returns an empty IntStream. Syntax: 
  public IntStream stream()
Parameters: This method accepts nothing. Return value: This method returns the optional value as an IntStream. Below programs illustrate stream() method: Program 1: Java 
// Java program to demonstrate // OptionalInt.stream() method  import java.util.OptionalInt; import java.util.stream.IntStream;  public class GFG {      public static void main(String[] args)     {          // create a OptionalInt         OptionalInt opInt = OptionalInt.of(452146);          // get value as stream         IntStream out = opInt.stream();          // print value         System.out.println("Value:");         out.forEach(System.out::println);     } }
Output: Program 2: Java 
// Java program to demonstrate // OptionalInt.stream() method  import java.util.OptionalInt; import java.util.stream.IntStream;  public class GFG {      public static void main(String[] args)     {          // create a OptionalInt         OptionalInt opInt = OptionalInt.empty();          // get value as stream         IntStream out = opInt.stream();          // print value         if (out.count() == 0)             System.out.println("opInt is empty");     } }
Output: References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalInt.html#empty()

Next Article
Optional stream() method in Java with examples

A
AmanSingh2210
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Article Tags :
  • Java
  • Java - util package
  • Java-Functions
  • Java-OptionalInt
Practice Tags :
  • Java

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