Question

Your goal is to create an ‘Array’ class that is able to hold multiple integer values. The ‘Array’ class will be given functionality through the use of various overloaded operators
You will be given the main() function for your program and must add code in order to achieve the desired result. Do not change any code in main(). If something is not working, you must change your own code, not the code in main().

Assignment 5: overloading member functions. Overview: Your goal is to create an 'Array' class that is able to hold multiple integer values. The 'Array class will be given functionality through the use of various overloaded operators You will be given the main() function for your program and must add code in order to achieve the desired result. Do not change any code in main(). If something is not working, you must change your own code, not the code in main(). main() int main() { Array arr1(5), arr2(10): for (int i = 0; i < arr1.getSize(); i++) arr1[i] = 1; for (int i = 0; i < arr2.getSize(); i++) arr2[i] = 1; cout << "arr1 contains: " << arr1; cout << "arr2 contains:" << arr2; Array arr3(arr1); cout << "arr3 contains: " << arr3 << endl; arr2 = arr2; cout << "arr2 contains: " << arr2; arr3 = arr2; cout << "arr3 contains: "<< arr3 << endl; cout << boolalpha; //Display booleans as 'true' or 'false' instead of 1 or 0 cout << "arr2 == arr3:"<< (arr2 == arr3) << endl; cout << "arr1 == arr3:"<< (arr1 == arr3) << endl; cout << "arr1 < arr3:" << (arr1 < arr3) << endl << endl; arr3[0] = 100; cout << "New arr3:"<< arr3; cout << "arr2 == arr3:"<< (arr2 == arr3) << endl; cout << "arr1 == arr3:"<< (arr1 == arr3) << endl; cout << "arr1 < arr3:"<< (arr1 < arr3) << endl<< endl; arr1 += arr2; cout << "arr1 += arr2:"<< arr1 << endl; cout << "!arr1:"<< !arr1; cout << "arr1:"<< *arr1 << endl << endl; cout << "arr1++:"<< arr1++; cout << "arr1 is:" << arr1 << endl; cout << "--arr1:"<< --arr1; cout << "arr1 is: " << arr1 << endl; cout << "Total number of elements in all arrays: " << Array::getNumberOfElements() << endl << endl; return 0; Below is your desired output:

Answer 1

Given below is the completed code for the question. Please do rate the answer if it helped. Let me know if any issues.

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
using namespace std;

class Array
{
private:
static int numberOfElements; //class static variable
int size;
int* values;
  
public:
Array(int len)
{
size = len;
values = new int[size];
for(int i = 0; i < size; i++)
values[i] = 0;
numberOfElements += size;
srand(time(NULL));
}
  
Array(const Array& other) //copy constructor
{
size = other.size;
values = new int[size];
for(int i = 0; i < size; i++)
values[i] = other.values[i];
numberOfElements += size;
}
  
  
Array& operator =(const Array & other)
{
delete []values;
numberOfElements = numberOfElements - size + other.size;

size = other.size;
values = new int[size];
for(int i = 0; i < size; i++)
values[i] = other.values[i];
return *this;
}
  
int& operator[](int index)
{
return values[index];
}
  
friend ostream& operator <<(ostream & out, const Array &a)
{
for(int i = 0; i < a.size; i++)
out << a.values[i] << " ";
out << endl;
return out;
}
  
int getSize()
{
return size;
}
  
bool operator ==(const Array &other)
{
if(size == other.size)
{
  
for(int i = 0; i < size; i++)
{
if(values[i] != other.values[i])
return false;
}
return true;

}
else
return false;
}
  
bool operator <(const Array &other)
{
int index;
  
for(index = 0 ; index < size && index < other.size; index++)
{
if(values[index] >= other.values[index])
return false;
}
  
if(index == size) //all elements in this array are lesser than other
return true;
else
return false;
  
}
  
Array& operator +=(const Array& other) //concatenate
{
int newSize = size + other.size;
  
int* temp = new int[newSize];
int j = 0;
for(int i = 0; i < size; i++) //copy from this array
temp[j++] = values[i];
for(int i = 0; i < other.size; i++) //copy from other array
temp[j++] = other.values[i];
  
numberOfElements = numberOfElements - size + newSize; //update class variable
size = newSize;
delete[] values;
values = temp;
return *this;
}
  
int operator *() //indirection operator
{
int min = values[0];
for(int i = 1; i < size; i++)
{
if(values[i] < min)
min = values[i];
}
return min;
}
  
Array& operator !() //shuffle
{
for(int i = 0; i < size; i++)
{
int index = rand() % size;
//swap
int temp = values[i];
values[i] = values[index];
values[index] = temp;
}
return *this;
}
  
Array operator ++(int) //postfix
{
Array copy(*this);
for(int i = 0; i < size; i++)
values[i]++;
return copy;
}
  
Array& operator --() //prefix
{
for(int i = 0; i < size; i++)
--values[i];
return *this;
}
  
  
static int getNumberOfElements()
{
return numberOfElements;
}
  
~Array()
{
delete[] values;
numberOfElements -= size;
  
}
};

int Array::numberOfElements = 0; //initialize static variable

int main() {
  
Array arr1(5), arr2(10);
  
for (int i = 0; i < arr1.getSize(); i++) arr1[i] = i;
  
for (int i = 0; i < arr2.getSize(); i++) arr2[i] = i;
  
cout << "arr1 contains: " << arr1; cout << "arr2 contains: " << arr2;
  
Array arr3(arr1);
  
cout << "arr3 contains: " << arr3 << endl;
  
arr2 = arr2;
  
cout << "arr2 contains: " << arr2;
  
arr3 = arr2;
  
cout << "arr3 contains: " << arr3 << endl;
  
cout << boolalpha; //Display booleans as 'true' or 'false' instead of 1 or 0
  
cout << "arr2 == arr3: " << (arr2 == arr3) << endl;
  
cout << "arr1 == arr3: " << (arr1 == arr3) << endl;
  
cout << "arr1 < arr3: " << (arr1 < arr3) << endl << endl;
  
arr3[0] = 100;
  
cout << "New arr3: " << arr3; cout << "arr2 == arr3: " << (arr2 == arr3) << endl;
  
cout << "arr1 == arr3: " << (arr1 == arr3) << endl;
  
cout << "arr1 < arr3: " << (arr1 < arr3) << endl << endl;
  
arr1 += arr2;
  
cout << "arr1 += arr2: " << arr1 << endl;
  
cout << "!arr1: " << !arr1;
  
cout << "*arr1: " << *arr1 << endl << endl;
  
cout << "arr1++: " << arr1++;
  
cout << "arr1 is: " << arr1 << endl; cout << "--arr1: " << --arr1;
  
cout << "arr1 is: " << arr1 << endl;
  
cout << "Total number of elements in all arrays: " << Array::getNumberOfElements() << endl << endl;
  
return 0;
  
}

output
=------
arr1 contains: 0 1 2 3 4
arr2 contains: 0 1 2 3 4 5 6 7 8 9
arr3 contains: 0 1 2 3 4

arr2 contains: 0 1 2 3 4 5 6 7 8 9
arr3 contains: 0 1 2 3 4 5 6 7 8 9

arr2 == arr3: true
arr1 == arr3: false
arr1 < arr3: false

New arr3: 100 1 2 3 4 5 6 7 8 9
arr2 == arr3: false
arr1 == arr3: false
arr1 < arr3: false

arr1 += arr2: 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9

!arr1: 2 4 8 1 7 4 0 3 1 6 0 5 2 9 3
*arr1: 0

arr1++: 2 4 8 1 7 4 0 3 1 6 0 5 2 9 3
arr1 is: 3 5 9 2 8 5 1 4 2 7 1 6 3 10 4

--arr1: 2 4 8 1 7 4 0 3 1 6 0 5 2 9 3
arr1 is: 2 4 8 1 7 4 0 3 1 6 0 5 2 9 3

Total number of elements in all arrays: 35