java - Int to Byte with same value -

i have , int , byte, need byte value same value int, answers have found end this:

int = 234; byte b = (byte) i; system.out.println(b); // -22 int i2 = b & 0xff; system.out.println(i2); // 234 

now if int equaled 234, need byte value when printed out 234, not -22, understand why printed out -22 not need.

if knows how please me.

you can't. byte can store numbers between -128 , 127. when converting integer not representable, loss of information bound happen.

to elaborate, when converting int byte, lowest 8 bits considered. 234 representable in these 8 bits result negative number (-22) because msb 1. in code, when do

int i2 = b & 0xff; 

it renders number 32-bit integer bits except lowest 8 set zero. therefore, result same number 234.