  We obtain a new self-similar solution to the Einstein's equations in
four-dimensions, representing the collapse of a spherically symmetric,
minimally coupled, massless, scalar field. Depending on the value of certain
parameters, this solution represents the formation of naked singularities and
black holes. Since the black holes are identified as the Schwarzschild ones,
one may naturally see how these black holes are produced as remnants of the
scalar field collapse.
