oracle has Java available for the raspberry, but if you want to develop on the machine itself you do not have any if the major IDEs available and the machine would have too little ram anyway.

So, go for python. 

Programming on Raspberry Pi device?
What is the antonym of "crepuscular"?

Crepuscular animals are most active at twilight (crepusculum = twilight). Thus, the antonym of "crepuscular" would refer to animals most active at midday or midnight.
