public static String
toDottedQuad(byte [] addr) {
	return ((addr[0] & 0xFF) + "." + (addr[1] & 0xFF) + "." +
		(addr[2] & 0xFF) + "." + (addr[3] & 0xFF));
}
Converts a byte array containing an IPv4 address into a dotted quad string.
@param addr The array
@return The string representation
src/main/java/core/org/xbill/DNS/Address.java