Question

C++ Memory Management:

- Create a class called DynamicArray that allocates an integer array of user defined size on the heap

- Don't not use any of the STL containers (vector, list, etc)

- Create the necessary constructors and destructor, code should allocate the array using new.

- Write a method print_array that prints the array’s length and the contents of the array.

- Create at least 2 DynamicArray objects and print their contents. Include your DynamicArray class below along with the constructors/destructor and sample output.

- Below is a sample main method that declares, fills (not required as part of the project, but it makes testing easier), and prints a DynamicArray

int main()

{

    DynamicArray a(9);

    a.fill_array(1); /* fills array with consecutive #’s */

    a.print_array();

}

- in the comments label code as 'constructor' and 'destructor'

-show full code to pls

Answer 1

#include <iostream>

using namespace std;

class DynamicArray {

// Access specifier

public:

//Data Members

int *data;

int n, size;

//Member Functions()

//Default constructor

DynamicArray() {

data = new int[8];

n = 8;

size = 0;

}

DynamicArray(int size) {

data = new int[size];

n = size;

size = 0;

}

//Copy constructor

DynamicArray(const DynamicArray &other) {

n = other.n;

data = new int[n];

for (int i = 0; i < n; i++) {

data[i] = other.data[i];

}

}

void operator=(const DynamicArray &other){

n = other.n;

data = new int[n];

for (int i = 0; i < n; i++) {

data[i] = other.data[i];

}

}

int countEntry(){

return size;

}

void fill_array(int k){

while(1) {

data[size++] = k;

if(size==n)

break;

}

}

void print_array(){

for (int i = 0; i < size; i++) {

cout<< data[i] <<" ";

}

cout<<endl;

}

//Destructor

~DynamicArray() {

delete[] data;

}

};

int main(){

DynamicArray a(9);

a.fill_array(1);

a.print_array();

}

=================================================================

SEE OUTPUT

Thanks, PLEASE COMMENT if there is any concern. PLEASE UPVOTE