Can we make unsigned byte in Java

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I am trying to convert a signed byte in unsigned. The problem is the data I am receiving is unsigned and Java does not support unsigned byte, so when it reads the data it treats it as signed.

I tried it to convert it by the following solution I got from Stack Overflow.

public static int unsignedToBytes(byte a)
{
    int b = a & 0xFF;
    return b;
}

But when again it’s converted in byte, I get the same signed data. I am trying to use this data as a parameter to a function of Java that accepts only a byte as parameter, so I can’t use any other data type. How can I fix this problem?

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