I'm not sure exactly what you want to know. The value 130 does not fit into a byte, because a byte is an 8-bit signed data type - it can contain only values between -128 and 127. Values in a byte (as well as in int, short and long) are stored in two's complement format.
It is possible to use a byte to store that bit pattern, but Java will interpret it as a signed two's complement integer, and you'll end up with a negative value: -126.
However, if you know the byte's bit pattern should be interpreted as an unsigned value, you can work around this.
All you need is to widen from a byte to an int and do some bit twiddeling:
I guess the real question is, why would you want to do this?
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