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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