Java Card

Hello, these days i find a problem with this operations, and I don't find the way to solved it, I think the problem is that i can't use integers in Java Card.

I'm doing divisions with 2, and there's a moment that bits changs because carry I supose,

short temp = (short) (ofini/2);

I tryed to solve it doing that

short temp = (short) ((ofini/2) & 0xF7);

but it don't solve all the numbers i can use with "ofini"that goes to 0 - DD.

Is there any solution? If I solve it i would be able to finish my applet... XD