This is the code for SampleDriver.Java : This is the Code for Sample.Java You ju

Question

This is the code for SampleDriver.Java :

This is the Code for Sample.Java

You just need to make changes in the Sample.Java code and add the formulas so it looks like the example.

I also can share the files via email if that's good.

Please make sure the code works.

Complete the hyperlinked Sam e lava program to compute the required sample statistics invoked from the hyperlinked Sam driver program. Upload only your completed Samplejava program. A sample run is shown below (where input values are shown in lime green Sample minimum: 1.0 Sample maximum: 9.9 Sample sum: 36.9 Sample average: 3.69 Sample variance: 8.954333333333334 Enter number to search Cuse negative number to end 1 Number of instances of 1.0 in sample 3 Enter number to search Cuse negative number to end 2 Number of instances of 2.0 in sample: 0 Enter number to search Cuse negative number to end 2.3 Number of instances of 2.3 in sample 1 Enter number to search Cuse negative number to end): -1 LEND] Note: Sample variances are calculated as follows: i-0 where T is the sample average and n is the size of the sample data.

Explanation / Answer

import java.util.ArrayList;

public class Sample{
   ArrayList<Double> list = null;
   public Sample(double[] a){
       list = new ArrayList<Double>(a.length);
       for(int i=0;i<a.length;++i){
           list.add(a[i]);
       }
   }
   public double min(){
       double m = list.get(0);
       for(int i=1;i<list.size();i++){
           if(list.get(i)<m){
               m = list.get(i);
           }
       }
       return m;
   }
   public double max(){
       double mlist = list.get(0);
       for(int i=1;i<list.size();i++){
           if(list.get(i)<mlist){
               mlist = list.get(i);
           }
       }
       return mlist;
   }
   public double sum(){
       double sum=0;
       for(int i=0;i<list.size();i++){
           sum = sum+list.get(i);
       }
       return sum;
   }
   public double average(){
       double sum=0;
       double average=0;
       for(int i=0;i<list.size();i++){
           sum = sum+list.get(i);
       }
       average = sum/list.size();
       return average;
   }
   public double variance(){
       double var1=0;
       double var=0;
       double avg = average();
       for(int i=0;i<list.size();i++){
           var1 = (list.get(i)-avg)*(list.get(i)-avg);
       }
       var = var1/(list.size()-1);
      
       return var;
   }
   public int countInstancesOf(double element){
       int count =0 ;
       for(int i=0;i<list.size();i++){
           if(element == list.get(i)){
               count++;
           }
       }
       return count;
   }
}

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