JAVA: AverageCalculator Class Write a class AverageCalculator. The purpose of a

Question

JAVA:
AverageCalculator Class

Write a class AverageCalculator. The purpose of a AverageCalculator object is to count, sum and average a series of numbers. The AverageCalculator class has the following specification:
// instance variable of type int for the running total of numbers that have been given to the AverageCalculator
// instance variable of type int for the count of numbers that have been given to the AverageCalculator

// default constructor
AverageCalculator ()

// Mutator to add a number to the AverageCalculator
void add(int newNum)

// Accessor to return the sum of all the numbers added to the AverageCalculator
int getSum()

// Accessor to return the count, or number, of numbers added to the AverageCalculator
int getCount()

// Accessor to return the average of all the numbers added to the AverageCalculator

// note that the instance variables are int, and the return type of this method is double--be careful with the division operation double getAverage()

Write a class, AverageCalculatorMain that contains a main method and does the following:
~ create a AverageCalculator object, add one number to the AverageCalculator (pick whatever value you wish), and print the sum, count and average of the AverageCalculator .
~create another AverageCalculator object. Add three numbers to the AverageCalculator , and print the sum, count and average of the AverageCalculator .

Thank you!

Explanation / Answer

package com.he.capillary;

public class AverageCalculator {

   private int count;
   private int sum;

   AverageCalculator() {

   }

   double getAverage() {
       return sum*1.0 / count * 1.0;
   }

   void add(int newNum) {
       this.sum += newNum;
       this.count += 1;
   }

   int getSum() {
       return this.sum;
   }

   int getCount() {
       return this.count;
   }
}

package com.he.capillary;

public class AverageCalculatorMain {

   public static void main(String[] args) {
      
       AverageCalculator ac = new AverageCalculator();
       ac.add(100);
       ac.add(25);
       ac.add(25);
       ac.add(25);
      
       System.out.println(ac.getAverage()+" "+ac.getCount()+" "+ac.getSum());
   }
}

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