Input and Output impedances of Current and Voltage Amplifiers
I read that Voltage Amplifier have high input impedance and low output impedance, and Current Amplifier have low iremainnput impedance and high output impedance. 


These are definitions that we impose on the circuits to make them easier to think about, so it's dangerous to try to make sweeping generalizations from real circuits.  An amplifier is a voltage amplifier if the designer intended that it respond to voltages with voltages, etc.  But one could conceivably have any topology be a "voltage" or a "current" (or transresistance or transimpedance) amplifier.