@Override
	public String toString() {
		StringBuilder buf = new StringBuilder();
		for (int i = 0; i < this.digits.length; i++) {
			if (i != 0) {
				buf.append('.');
			}
			buf.append(this.digits[i]);
		}
		return buf.toString();
	}
Parses a string like "1.0.2" into the version number.

@param num parameter string
ngrinder-core/src/main/java/net/grinder/util/VersionNumber.java