A theory, which has been advanced by the author and his co-workers, for frequency shifts of electronic absorption spectra of a nonpolar rodlike molecule in dilute nonpolar and polar solutions is extended so that it is applicable to a polar rodlike solute molecule and a nonpolar or polar disklike solute molecule. The theory takes into account higher-order multipole moments (in addition to a dipole) of the solute molecule, and its solution-phase polarizabilities are properly taken into account. Furthermore, it explains how the dispersive interaction is altered by the presence of permanent dipoles of the solvent.