hashset iterator 28 29 method in java

1Set<String> set = new HashSet<String>();
2for (String s : set) {
3    System.out.println(s);
4}
5
6//Java 8:
7set.forEach(System.out::println);

1import java.util.HashSet;
2import java.util.Iterator;
3public class HashSetIteratorMethodExample
4{
5   public static void main(String[] args)
6   {
7      HashSet<String> hs = new HashSet<String>();
8      hs.add("Welcome");
9      hs.add("hello");
10      hs.add("world");
11      hs.add("core");
12      hs.add("java");
13      System.out.println("HashSet values are: " + hs);
14      // create an Iterator
15      Iterator<String> value = hs.iterator();
16      System.out.println("iterator values are: ");
17      while(value.hasNext())
18      {
19         System.out.println(value.next());
20      }
21   }
22}