  We solved the Klein-Gordon equation analytically using the Nikiforov-Uvarov
method to obtain the energy eigenvalues and corresponding wavefunction in terms
of Laguerre polynomials with the ultra generalized exponential hyperbolic
potential. The present results are applied for calculating the mass spectra of
heavy mesons such as charmonium (cc) and bottomonium (cc) for different quantum
states. The present potential provides excellent results in comparison with
experimental data with a maximum error of and work of other researchers.
