Hex value to Binary
public class Util { /* * Function: hex2bin */ public static char hex2bin(char c) { if ('0' <= c && '9' >= c) { return (char)(c - '0'); } else if ('a' <= c && 'f' >= c) { return (char)(c - 'a' + 10); } else if ('A' <= c && 'F' >= c) { return (char)(c - 'A' + 10); } return (char)0; } }