WeatherStation$($identifier$)$ This constructor initializes the internal data for the weather station. The identifier that is provided is the Station ID for this weather station $($i$.$e$.,$ a unique name$).$ Initially, the weather station does not know about any daily summary reports $($i$.$e$.,$ all counts and totals are zero$).$

String getId$()$ Returns the weather station ID for this weather station.

recordDailyRain$($month$,$ rainfall$)$ Record the information from one daily summary line in a data file, which adds the rainfall $($a double$)$ to the month $($an integer from $1-12$ indicating the month of the daily report$).$

int getCountForMonth$($month$)$ Returns the number of daily rainfall values that have been recorded for the specified month $($a number $1-12).$ Return zero when no values have been recorded for the specified month.

double getAvgForMonth$($month$)$ Returns the average daily rainfall for the specified month $($a number $1-12).$ This is the total rainfall across all reported daily values for that month, divided by the number of daily values that have been recorded for that month. Return $-1$ if no rainfall amounts have been recorded for the specified month.

int getLowestMonth$()$ Returns the number of the month $($a number $1-12)$ indicating the month that had the lowest average rainfall recorded at this station. If multiple months have the same lowest rainfall average, return the earliest one $($the lowest month number$).$ If no rainfall records have been entered for any month, return the earliest month as well $(1).$