public class RainGauge
{
    /** Returns the rainfall in millimeters on the given day.
     *  Precondition: day >= 1
     */
    private int getRainfall(int day)
    { /* implementation not shown */ }

    /** Returns the length of the longest run of consecutive
     *  dry days (rainfall of 0) from day 1 to numDays, inclusive.
     *  Precondition: numDays >= 1
     */
    public int longestDryStreak(int numDays)
    { /* to be implemented in part (a) */ }

    /** Returns the initials of name, in uppercase order of appearance.
     *  Precondition: name contains words separated by single
     *  spaces, with no leading or trailing spaces.
     */
    public static String initials(String name)
    { /* to be implemented in part (b) */ }
}