[Java] Help me with ths array Write a class CircleProcessor which manages an arr

Question

[Java] Help me with ths array

Write a class CircleProcessor which manages an array of Circles. You are given a Circle class.

The constructor of the CircleProcessor takes an array of Circles. The array must contain at least one element

Provide these methods

An averageArea method that returns the average area of the Circles in the array. Only divide one time

A method swapMaxAndMin which swaps the largest and smallest elements in the array. Only use one loop

A method toString which returns the string representation of the underlying array using Arrays.toString

Use the following files:

Circle.java

CircleProcessorTester.java

Here's my code:

import java.util.Arrays;

public class CircleProcessor
{
   private Circle[] circleArray;
   public CircleProcessor(Circle[] circles)
   {
       circleArray = circles;
   }
   public double averageArea()
   {
       double average = 0;
       for(int i = 0; i < circleArray.length; i++)
       {
           double sum = 0;
           sum = sum + circleArray[i].area();
           average = sum / i;
       }
      
       return average;
   }
   public void swapMaxAndMin(Circle[] c)
   {
       int maxIndex = 0;
       int minIndex = 0;
       for(int i = 0; i < c.length; i++)
       {
           if(c[i].area() > c[maxIndex].area())
           {
               maxIndex = i;
           }
           else if(c[i].area() < c[maxIndex].area())
           {
               minIndex = i;
           }
       }
       Circle temp = c[minIndex];
       c[minIndex] = c[maxIndex];
       c[maxIndex] = temp;
   }
  
   public String toString(Circle[] circles)
   {
       String temp ="";
       for(int i = 0; i < circles.length; i++)
       {
           temp = temp + Arrays.toString(circles) + " ";
       }
       return temp;
   }
  
}

Explanation / Answer

import java.util.Arrays;

public class CircleProcessor
{
   private Circle[] circleArray;
   public CircleProcessor(Circle[] circles)
   {
       circleArray = circles;
   }
   public double averageArea()
   {
       double average = 0.0;

double sum=0.0;
       for(int i = 0; i < circleArray.length; i++)
       {
           sum = sum + circleArray[i].area();

}
           average = sum /circleArray.length;
return average;
   }
   public void swapMaxAndMin(Circle[] c)
   {
       int maxIndex = 0;
       int minIndex = 0;
       for(int i = 0; i < c.length; i++)
       {
           if(c[i].area() > c[maxIndex].area())
           {
               maxIndex = i;
           }
           else if(c[i].area() < c[minIndex].area())
           {
               minIndex = i;
           }
       }
       Circle temp = c[minIndex];
       c[minIndex] = c[maxIndex];
       c[maxIndex] = temp;
   }
  
   public String toString(Circle[] circles)
   {
       String temp ="";
           temp = temp + Arrays.toString(circles) + " ";
       return temp;
   }
  
}

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