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+public class TestJavaCollection7{ + public static void main(String args[]){ + HashSet set = new HashSet(); + set.add("Ravi"); + set.add("Vijay"); + set.add("Ravi"); + set.add("Ajay"); + Iterator itr = set.iterator(); + while(itr.hasNext()){ + System.out.println(itr.next()); + } + } +}