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package 集合框架（LSP）;
/**
* HashSet瀹炵幇绫伙紙绠€鍖栫増锛?
* @author 方初阳
* @version 1.0
* @created 23-10月-2025 21:35:51
*/
public class HashSet<E> implements Set<E> {
private Map<E, Object> map = new HashMap<>();
public HashSet(){
}
public void finalize() throws Throwable {
*
* @param e
@Override
public boolean add(E e){
return false;
public boolean isEmpty(){
public Iterator<E> iterator(){
return null;
* @param o
public boolean remove(Object o){
public int size(){
return 0;
}//end HashSet
