Module $2$ Recommended Implementation

Details

This second part of the signature assignment will rework the code to create the binary file. Then,

you will develop classes for reading and analyzing the binary data read from the file.

Write a function named createBinaryFile, which takes the name of a file as its first

parameter and the size of the data as the second parameter and returns nothing. Copy the code

from the createArray function for creating the array of random values into this function.

Modify writeBinary to take an additional string parameter; it is the file name. Add a call to

the existing writeBinary function and pass three parameters. When this code works

correctly, eliminate the createArray function since it is no longer needed.

Write a class called BinaryReader. It should have instance variables of an integer pointer

and an integer. The pointer will point to an array of integers; named values. The integer will

hold the array$$s size, named size. Add a constructor that takes a single parameter, a constant

string reference to a file name. Add a private method called readValues with one parameter,

the name of the input file. Copy the code from the readBinary function to open the file, input

the array size into the size instance variable, and create the dynamic array using the values

instance variable. Now, read the values from the file into the array. Eliminate the existing

readBinary function. The constructor should call the readValues method to populate the

array and size instance variables. Add a destructor to delete the integer array. Finally, add

getValues and getSize as public methods that return the instance variables.

Write a second class called Analyzer. This class has two instance variables: an integer pointer

representing an array of integers named values and an integer representing the array$$s size

named size. Add a constructor with two parameters: an integer pointer and an integer. Add a

private cloneValues method that creates an integer array, copies the values from the array

parameter into its elements, copies the size, and returns nothing. The constructor should call the

cloneValues method, passing it the two parameter values. Add a destructor to delete the

dynamic array. Add an analyze method that determines the mean $($mathematical average$),$

minimum value, and maximum value from the values in the array. Be certain to return a double

value for the mean value. Return a string that holds this statistical information.

Update the main function to call create binary file, passing the name as $$binary$.$dat.$$

Create a BinaryReader instance and write a loop that iterates over the values from the

instance to ensure it works correctly. After it is working, the loop should be removed. Next,

create an instance of the Analyzer class, passing its constructor the values and size using the

BinaryReader$$s get methods for its values and size. Call the analyze method and print out

the results.

Use these function and class headers:

class Analyzer

void cloneValues$($int$*$ values, int size$)$

Analyzer$($int$*$ values, int size$)$

~Analyzer$()$

std::string analyze$()$

class BinaryReader

void readValues$($const std::string& name$)$

BinaryReader$($const std::string& name$)$

~BinaryReader$()$

int$*$ getValues$()$

int getSize$()$

void createBinaryFile$($const std::string& name, int length$)$

void writeBinary$($int$*$ values, int length, const std::string&

name$)$

Example output:

The minimum value is $0$

The maximum value is $999$

The mean value is $499\mathrm{.}495$