Java Set Iterator
In this tutorial we will see how to use the Java iterator with Set interface . We will create an example to display the contents of the set collection.
In this tutorial we will see how to use the Java iterator with Set interface . We will create an example to display the contents of the set collection.
- Set Interface keeps the data without duplicate value.
- Its one subtype Treeset always returns sorted data.
- But the subtype HashSet doesnot return sorted data.
- It uses iterator() method to traverse the data
Java Set Iterator Example
import java.util.*;
public class set1 {
public static void main(String[] args) {
Set s = new HashSet();
s.add("car");
s.add("scooter");
s.add("bike");
s.add("aeroplane");
s.add("car");
Iterator it = s.iterator();
while (it.hasNext()) {
System.out.println(it.next());
}
}
}
Output
car bike aeroplane scooter
