package java.util; import java.io.Serializable; public class Hashtable extends Dictionary implements Map, Cloneable, Serializable { /** * @throws IllegalArgumentException */ public Hashtable(int initialCapacity, float loadFactor) {} /** * @throws IllegalArgumentException */ public Hashtable(int initialCapacity) {} public Hashtable() {} /** * @throws NullPointerException */ public Hashtable(Map t) {} public void clear() {} public Object clone() { return null; } /** * @throws NullPointerException */ public boolean contains(Object value) { return false; } /** * @throws NullPointerException */ public boolean containsKey(Object key) { return false; } /** * @throws NullPointerException */ public boolean containsValue(Object value) { return false; } public Enumeration elements() { return null; } public Set entrySet() { return null; } public boolean equals(Object o) { return false; } /** * @throws NullPointerException */ public Object get(Object key) { return null; } public int hashCode() { return 0; } public boolean isEmpty() { return false; } public Enumeration keys() { return null; } public Set keySet() { return null; } /** * @throws NullPointerException */ public Object put(Object key, Object value) { return null; } /** * @throws NullPointerException */ public void putAll(Map t) {} protected void rehash() {} /** * @throws NullPointerException */ public Object remove(Object key) { return null; } public int size() { return 0; } public String toString() { return null; } public Collection values() { return null; } }