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package java.util;
import java.io.*;
///*sk13*/import java.util.Hashtable;
public class HashSet extends /*sk13*/AbstractSet
/*sk13*/ /*extends Hashmap*/
{
private HashMap m_HashMap=null;
public HashSet()
{
m_HashMap=new HashMap();
}
public HashSet(Collection c)
{
m_HashMap=new HashMap(Math.max(11,c.size()*2));
addAll(c);
}
public HashSet(int initialCapacity, float loadFactor)
{
m_HashMap=new HashMap(initialCapacity,loadFactor);
}
public HashSet(int initialCapacity)
{
m_HashMap=new HashMap(initialCapacity);
}
public Iterator iterator()
{
return (m_HashMap.keySet()).iterator();
}
public int size()
{
return m_HashMap.size();
}
public boolean contains(Object o)
{
return m_HashMap.containsKey(o);
}
public boolean add(Object o)
{
if (!m_HashMap.containsValue(o))
{
m_HashMap.put(o, o);
return true;
}
return false;
}
public boolean remove(Object o)
{
return (m_HashMap.remove(o)!=null);
}
public void clear()
{
m_HashMap.clear();
}
public Object clone()
{
HashSet hs=new HashSet();
hs.m_HashMap=(HashMap)m_HashMap.clone();
return hs;
}
}
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