Convert a Set to Stream in Java
Set interface extends Collection interface and Collection has stream() method that returns a sequential stream of the collection. Below given are some examples to understand the implementation in a better way. Example 1 : Converting Integer HashSet to Stream of Integers.
Java
// Java code for converting // Set to Streamimport java.util.*;import java.util.stream.Stream;class GFG { // Driver code public static void main(String[] args) { // Creating an Integer HashSet Set<Integer> set = new HashSet<>(); // adding elements in set set.add(2); set.add(4); set.add(6); set.add(8); set.add(10); set.add(12); // converting Set to Stream Stream<Integer> stream = set.stream(); // displaying elements of Stream using lambda expression stream.forEach(elem->System.out.print(elem+" ")); }} |
Output:
2 4 6 8 10 12
Example 2 : Converting HashSet of String to stream.
Java
// Java code for converting // Set to Streamimport java.util.*;import java.util.stream.Stream;class GFG { // Driver code public static void main(String[] args) { // Creating an String HashSet Set<String> set = new HashSet<>(); // adding elements in set set.add("Beginner"); set.add("for"); set.add("BeginnerQuiz"); set.add("w3wiki"); // converting Set to Stream Stream<String> stream = set.stream(); // displaying elements of Stream stream.forEach(elem -> System.out.print(elem+" ")); }} |
Output:
w3wiki Beginner for BeginnerQuiz
Note : Objects that you insert in HashSet are not guaranteed to be inserted in same order. Objects are inserted based on their hash code. Convert Stream to Set in Java
Contact Us