Method get

equalshashcode/SlowMap.java:21–26

(Object key)

    return oldValue;
  }
  @Override
  public V get(Object key) { // key: type Object, not K
    if(!keys.contains(key))
      return null;
    return values.get(keys.indexOf(key));
  }
  @Override public Set<Map.Entry<K, V>> entrySet() {
    Set<Map.Entry<K, V>> set= new HashSet<>();
    Iterator<K> ki = keys.iterator();