07-lecture-documentation.adoc

/**
  * Creates a LatLong object from a String, using a specific separator.
  * The format is &lt;latitude&gt;&lt;separator&gt;&lt;longitude&gt;.
  * @param s the String to parse
  * @param sep the separator
  * @return the new LatLong object
  */
public static LatLong valueOf(final String s, final String sep) {
  final int pos = s.indexOf(sep);
  if (pos < 0) {
    throw new IllegalArgumentException("No '" + sep + "' in " + s);
  }
  final double lat = Double.valueOf(s.substring(0, pos).trim());
  final double lon = Double.valueOf(s.substring(pos + sep.length()).trim());
  return new LatLong(lat, lon);
}
```plantuml
class LatLong {
	double latitude
	double longitude
}
class LatLongs
LatLongs *--> "*" LatLong: "latLongs"
class MetaData
LatLong *--> "1" MetaData: "metaData"
```