Write code to Returns the the byte value of a hexadecimal char (0-f).
//package com.book2s; public class Main { public static void main(String[] argv) { char ch = 'a'; System.out.println(hexCharToByte(ch)); }//from w w w. ja va 2 s . co m /** * Returns the the byte value of a hexadecmical char (0-f). It's assumed * that the hexidecimal chars are lower case as appropriate. * * @param ch * a hexedicmal character (0-f) * @return the byte value of the character (0x00-0x0F) */ private static final byte hexCharToByte(char ch) { switch (ch) { case '0': return 0x00; case '1': return 0x01; case '2': return 0x02; case '3': return 0x03; case '4': return 0x04; case '5': return 0x05; case '6': return 0x06; case '7': return 0x07; case '8': return 0x08; case '9': return 0x09; case 'a': return 0x0A; case 'b': return 0x0B; case 'c': return 0x0C; case 'd': return 0x0D; case 'e': return 0x0E; case 'f': return 0x0F; } return 0x00; } }