Write a RainFall class that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: the total rainfall for the year the average monthly rainfall the month with the most rain the month with the least rain Demonstrate the class in a complete program and use java 8 examples to do so. Input Validation: Do not accept negative numbers for monthly rainfall figures.

Explanation:

The following code is written in Java. It creates the Rainfall class with two constructors, one that passes the entire array of rainfall and another that initializes an array with 0.0 for all the months. Then the class contains a method to add rain to a specific month, as well as the three methods requested in the question. The method to add rain validates to make sure that no negative value was added. 8 Test cases were provided, and any methods can be called on any of the 8 objects.

class {

   public static void main(String[] args) {

       Rainfall rain1 = new Rainfall();

       Rainfall rain2 = new Rainfall();

       Rainfall rain3 = new Rainfall();

       Rainfall rain4 = new Rainfall();

       Rainfall rain5 = new Rainfall();

       Rainfall rain6 = new Rainfall();

       Rainfall rain7 = new Rainfall();

       Rainfall rain8 = new Rainfall();

   }

}

class Rainfall {

   double[] rainfall = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0};

   public Rainfall(double[] rainfall) {

       this.rainfall = rainfall;

   }

   public Rainfall() {

   }

   public void addMonthRain(double rain, int month) {

       if (rain > 0) {

           rainfall[month-1] = rain;

       }

   }

   public double totalRainfall() {

       double total = 0;

       for (double rain: rainfall) {

           total += rain;

       }

       return total;

   }

   public double averageRainfall() {

       double average = totalRainfall() / 12;

       return average;

   }

   public double rainiestMonth() {

       double max = 0;

       for (double rain : rainfall) {

           if (rain > max) {

               max = rain;

           }

       }

       return max;

   }

}

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