throw new RuntimeException ();
{ throw new RuntimeException(); }
    private Object extendArray (Object array, int currentSize, int requiredSize)    {	if (requiredSize < currentSize) {	    return array;	} else {	    Object newArray = null;	    int newSize = currentSize * 2;	    if (newSize <= requiredSize)		newSize = requiredSize + 1;	    if (array instanceof char[])		newArray = new char [newSize];	    else if (array instanceof Object[])		newArray = new Object [newSize];	    else		throw new RuntimeException ();	    System.arraycopy (array, 0, newArray, 0, currentSize);	    return newArray;	}    }