import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
public class HashSetExample1 {
public static void main(String[] args) {
Set set = new HashSet();
set.add("Java");
set.add("JDBC");
set.add("Servlet/JSP");
set.add("Java");
set.add("iBATIS");
System.out.println("�� ��ü�� :" + set.size());
Iterator iterator = set.iterator();
while (iterator.hasNext()) {
String elemet = (String) iterator.next();
System.out.println("\t" + elemet);
}
set.remove("JDBC");
set.remove("iBATIS");
System.out.println("�� ��ü�� :" + set.size());
iterator = set.iterator();
while (iterator.hasNext()) {
String elemet = (String) iterator.next();
System.out.println("\t" + elemet);
}
set.clear();
if(set.isEmpty()){
System.out.println("��������");
}
}
}