  Under spherical symmetry, we show that the weak cosmic censorship holds for
the gravitational collapse of the Einstein-Maxwell-charged scalar field system.
Namely, for this system, with generic initial data, the formed spacetime
singularities are concealed inside black-hole regions. This generalizes
Christodoulou's celebrated results to the charged case. Due to the presence of
charge $Q$ and the complexification of the scalar field $\phi$, multiple
delicate features and miraculous monotonic properties of the Einstein-(real)
scalar field system are not present. We develop a systematical approach to
incorporate $Q$ and the complex-valued $\phi$ into the integrated arguments.
For instance, we discover a new path, employing the reduced mass ratio, to
establish the sharp trapped surface formation criterion for the charged case.
Due to the complex structure and the absence of translational symmetry of
$\phi$, we also carry out detailed modified scale-critical BV area estimates
with renormalized quantities to deal with $Q$ and $\phi$. We present a new
$C^1$ extension criterion by utilizing the Doppler exponent to elucidate the
blueshift effect, analogous to the role of integrating vorticity in the
Beale-Kato-Madja breakdown criterion for incompressible fluids. Furthermore, by
utilizing only double-null foliations, we establish the desired first and
second instability theorems for the charged scenarios and identify generic
initial conditions for the non-appearance of naked singularities. Our
instability argument requires intricate generalizations of the treatment for
the uncharged case via analyzing the precise contribution of the charged terms
and its connection to the reduced mass ratio.
