import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

public class Test5Set {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Set<Customer> customers = new HashSet<Customer>();
		
		customers.add(new Customer("Nuwan"));
		customers.add(new Customer("Lasitha"));
		customers.add(new Customer("Praveen"));
		
		Customer y = new Customer("ABC");
		Customer z = new Customer("ABC");
		customers.add(y);
		customers.add(y);
		customers.add(z);
		
		for (Customer c : customers) {
			// Do some work with c here
			System.out.println(c);
		}
	}
}