If you have a hex value as a string and you need the ASCII character that corresponds to that value then you need to parse your string to get its value. Once you have its value it is a simple cast to convert it to an ASCII character
eg. 4A (hex) -> 74 (dec) -> ‘J’
// First parse the hext String int value = Integer.parseInt(hexString, 16); // Then cast it to a char char c = (char) value;
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