In this paper, we shall first show that the iteration 
$\{x_n\}$ defined by \eqref{eqn:2} below converges weakly 
to a fixed point of $T$ when $E$ is a uniformly convex 
Banach space with Opial's condition, which generalizes 
the recent theorem due to Takahashi and Kim 
\cite{TakahashiKim}.
Next, we show that the weak limit points of subsequences 
of the iteration $\{x_n\}$ defined by \eqref{eqn:3}
are fixed points of $T$ (or $S$) when $E$ is a uniformly 
convex Banach space, which generalizes the recent theorem 
due to Takahashi and Tamura \cite{TakahashiTamura}.