Basic: Short and byte

Question

I have a simple test that contains:

short x = 150;
byte y = (byte) (x+x);

Why y = 44?

I know that:
x + x = 300 but now type int;
byte y max value is 255, so answer should be it.
What I am missing?

Thank you in advance
☀️

Answer 1

300 - 256 = 44
byte can hold 8bit data, max = 255
All bits set as 1111 1111 adding 1 means
1 0000 0000 , => 256
adding 1 means
1 0000 0001 => 257
See byte can hold only 8bit data and last bit 1 is exceeds in storage , and ignored..
so in value, meaning it get repeating from zero again. So from 300 , byte now hold last 8bits and value is equal to 44.
Hope it helps....

Answer 2

I got it!
It goes to 255 and goes to 0 again. That's why!
Thank you a lot!