code: public Object get(int key) {
  	int i = indexOfKey(key);
  	if (i<0) return null; //not contained
  	return values[i];
  }
docs: Returns the value associated with the specified key.
  It is often a good idea to first check with {@link #containsKey(int)} whether the given key has a value associated or not, i.e. whether there exists an association for the given key or not.
  
  @param key the key to be searched for.
  @return the value associated with the specified key; <tt>null</tt> if no such key is present.