GalliJa? Was i between consonant and vowel pronounced ij?

1. How is J pronounced classical Latin?
2. Was there aw in latin?

How is J pronounced classical Latin?

In Latin J makes the same sound as the consonant English Y. In English you write "yes" but in Latin we write "jes". This point is of special importance as the name of Jesus in Latin is spelled the same as in English but pronounced differently.

Was there aw in latin?

The classical Latin alphabet, from which the modern European alphabets derived, did not have the "W' character. The "W" sounds were represented by the Latin letter "V" (at the time, not yet distinct from "U").