Set iterator() method in Java with Examples
The java.util.Set.iterator() method is used to return an iterator of the same elements as the set. The elements are returned in random order from what present in the set.
Syntax:
Iterator iterate_value = Set.iterator();
Parameters: The function does not take any parameter.
Return Value: The method iterates over the elements of the set and returns the values(iterators).
Below program illustrate the java.util.Set.iterator() method:
// Java code to illustrate iterator() import java.util.*; public class SetDemo { public static void main(String args[]) { // Creating an empty Set Set<String> set = new HashSet<String>(); // Use add() method to add elements into the Set set.add("Welcome"); set.add("To"); set.add("Geeks"); set.add("4"); set.add("Geeks"); // Displaying the Set System.out.println("Set: " + set); // Creating an iterator Iterator value = set.iterator(); // Displaying the values after iterating through the iterator System.out.println("The iterator values are: "); while (value.hasNext()) { System.out.println(value.next()); } } } |
Output:
Set: [4, Geeks, Welcome, To] The iterator values are: 4 Geeks Welcome To
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Set.html#iterator()
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