O level = ordinary level A level = advanced level
You unlock It o use freely after level 4 of which you can use create a class
va class o felony
SER O class was created in 1882.
WAGR O class was created in 1896.
NER Class O was created in 1894.
1. Singular possessed object, singular. Kou (o-class); kāu (a-class); kō (neutral class). 2. Singular possessed object, dual. Kō ʻolua (o-class); kā ʻolua (a-class). 3. Singular possessed object, plural. Kō ʻoukou (o-class); kā ʻoukou (a-class). 4. Plural possessed objects, singular. Ou (o-class); āu (a-class). 5. Plural possessed objects, dual. O ʻolua (o-class); a ʻolua (a-class). 6. Plural possessed objects, plural. Ō ʻoukou (o-class); a ʻoukou (a-class).
O Level
'O' Level was created in 1976.
a level
Highland Railway O Class was created in 1878.
The java.util.EventObject class is the heighest-level class in the event-delegation model class hierarchy.