public String
	toString() {
		StringBuffer sb = new StringBuffer();
		if (negative)
			sb.append("!");
		sb.append(family);
		sb.append(":");
		if (family == Address.IPv4 || family == Address.IPv6)
			sb.append(((InetAddress) address).getHostAddress());
		else
			sb.append(base16.toString((byte []) address));
		sb.append("/");
		sb.append(prefixLength);
		return sb.toString();
	}
Creates an APL element corresponding to an IPv4 or IPv6 prefix.
@param negative Indicates if this prefix is a negation.
@param address The IPv4 or IPv6 address.
@param prefixLength The length of this prefix, in bits.
@throws IllegalArgumentException The prefix length is invalid.
src/main/java/core/org/xbill/DNS/APLRecord.java