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public class Test {

public Object convert(Object object_for_convert) {

byte[] return_value = null;

try {

String value=(String)(object_for_convert);

return_value=hexToBytes(value.toCharArray());

} catch (Exception ex) {

}

return return_value;

}

// -- ïåðåâîä ñòðîêè char â áàéò ìàññèâ

public byte[] hexToBytes(char[] hex) {

int length = hex.length / 2;

byte[] res = new byte[length];

for (int i = 0; i < length; i++) {

int high = Character.digit(hex[i * 2], 16);

int low = Character.digit(hex[i * 2 + 1], 16);

int value = (high << 4) | low;

if (value > 127)

value -= 256;

res[i] = (byte) value;

}

return res;

}

public static void main(String[] args) {

Test test = new Test();

byte[] value=(byte[])test.convert("80F6001001");

for(int counter=0;counter<value.length;counter++){

System.out.println(counter+":"+value[counter]);

}

}

}