public static String
toDottedQuad(int [] addr) {
	return (addr[0] + "." + addr[1] + "." + addr[2] + "." + addr[3]);
}
Converts an int 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