pure interface of class java.util.AbstractMap<A, B>

public abstract class AbstractMap<A, B>
  implements Map<A, B>
{
    public int size();
    public boolean isEmpty();
    public boolean containsValue(B value);
    public boolean containsKey(A key);
    public B get(A key);
    public B put(A key,
                 B value);
    public B remove(A key);
    public void putAll(Map<A, B> t);
    public void clear();
    public Set<A> keySet();
    public Collection<B> values();
    public abstract Set<Entry<A, B>> entries();
    public boolean equals(Object o);
    public int hashCode();
    public String toString();
    public AbstractMap();
}