Answered: Question: Using good OOP, write a C++…

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter7: Arrays

Section7.3: Declaring And Processing Two-dimensional Arrays

Problem 4E: (Practice) Write a C++ program that adds equivalent elements of the two-dimensional arrays named...

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Question: Using good OOP, write a C++ program that will compare two arrays to test for the same elements and multiplicity.   To begin, populate the arrays with the input files, comFile1.txt and comFile2.txt.   The elements in the arrays do not need to be in the same order for them to be considered similar. For example:

comFile1.txt TO array 1:    121    144    19    161    19    144    19    11
comFile2.txt TO array 2:    11    121    144    19    161    19    144    19

NOTE: Professor mentioned that the array Size should be 300 as eh will be testing the code with different files other than these two he has provided for examples.

would be considered to have the same elements because 19 appears 3 times in each array, 144 appears twice in each array, and all other elements appear once in each array.

Use pointer notation instead of array notation whenever possible.

Display whether or not the arrays have the same elements and multiplicity.

Use private member functions and variables.
Use public member functions for a constructor (where appropriate) and a driver method only.

These specifications do not give a list of method names to be used. It is assumed the program will use several methods doing one task each.

NOTE: Any submission that uses global variables or does not use a class and object appropriately will result in a project grade of 0.

Expert Solution

Step 1

comFile1.txt

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comFile2.txt

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_____________________

#include <fstream>

#include <iostream>

using namespace std;

bool compareTwoArrays(int arr1[],int arr2[],int size);

int main()

{

//defines an input stream for the data file

ifstream dataIn;

int num,arr1Size=0,arr2Size=0;

//Opening the input file

dataIn.open("comFile1.txt");

//checking whether the file name is valid or not

if(dataIn.fail())

{

cout<<"** File Not Found **";

return 1;

}

else

{

//Calculating the size of an array

while(dataIn>>num)

{

arr1Size++;

}

dataIn.close();

// Creating array dynamically

int* arr1 = new int[arr1Size];

int i=0;

//Opening the input file

dataIn.open("comFile1.txt");



//calculating the no of elements in the file#1

while(dataIn>>num)

{

*(arr1+i)=num;

i++;

}

dataIn.close();





//Opening the input file

dataIn.open("comFile2.txt");

//checking whether the file name is valid or not

if(dataIn.fail())

{

cout<<"** File Not Found **";

return 1;

}

else

{

//calculating the no of elements in the file#1

while(dataIn>>num)

{

arr2Size++;

}

dataIn.close();

/* if the two files are not having same

* no of elements display error message

*/

if(arr1Size!=arr2Size)

{

cout<<"The Two arrays are not same."<<endl;

exit(1);

}

// Creating array dynamically

int* arr2 = new int[arr2Size];

i=0;

//Opening the input file

dataIn.open("comFile2.txt");

while(dataIn>>num)

{

*(arr2+i)=num;

i++;

}

dataIn.close();



//Calling the function by passing the two arrays as arguments

bool boolean=compareTwoArrays(arr1,arr2,arr1Size);

if(boolean)

cout<<"The Two arrays are same elements and multiplicity"<<endl;

else

cout<<"The Two arrays are not same "<<endl;

}

}



return 0;

}

/* This function compares the elements

* in the arrray and its multiplicity

*/

bool compareTwoArrays(int arr1[],int arr2[],int size)

{

int count=0;

for(int i=0;i<8;i++)

{

for(int j=0;j<8;j++)

{

if(*(arr1+i)==*(arr1+j))

count++;

}

//cout<<"Count "<<count<<endl;

for(int k=0;k<8;k++)

{

if(*(arr1+i)==*(arr2+k))

count--;

}

if(count!=0)

{

return 0;

}

}

return 1;

}

_____________________

Output:

$CProgram Files (x86)\Dev-Cpp MinGW64 bin CompareArraysAndMultiplicity.exe The Two arrays are not same Process exited after 0.$

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