To convert a byte to it's hexadecimal equivalent

    

public class Main {
  public static void main(String[] argv) {
    System.out.println(byteToHex((byte) 123));
  }

  public static String byteToHex(byte b) {
    int i = b & 0xFF;
    return Integer.toHexString(i);
  }
}
//7b

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To convert a byte to it's hexadecimal equivalent : byte « Data Type « Java

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