Slove the task 03 in c++

Question

dynarr.h

#ifndef DYNARR_H_INCLUDED

#define DYNARR_H_INCLUDED

class dynArr { private: int *data;

int size;

public:

dynArr();

dynArr(int);

~dynArr();

void setValue(int, int);

int getValue(int); };

#endif // DYNARR_H_INCLUDED

dynarr.cpp

#include "dynarr.h"

#include

#include using namespace std;

dynArr::dynArr() {

data = NULL;

size = 0; }

dynArr::dynArr(int s)

{ data = new int[s];

size = s; }

dynArr::~dynArr()

{ delete [] data;

}

int dynArr::getValue(int index)

{ return data[index];

}

void dynArr::setValue(int index, int value)

{

data[index] = value;

} ;

Tasks:

Task 3: Modify the header file and the source files again, so that it works for two dimensional array where all the rows are the same size. The user will specify the number of rows and columns as well as the content of the array, which you will take as input from user in the main function.

Answer 1

using namespace std;

#include <iostream>

#ifndef _DYNAMIC_ARRAY

#include "DynamicArray.h"

#endif

Go()

{

DynamicArray dummy();

int n=5;

DynamicArray A(n);

int iNum;

for (int iLoop=0; iLoop<n; iLoop++)

{

cout << " Please input integer #" << (iLoop+1) << " of " << n << ":>";

cin >> iNum;

A.IndexerSetAtIndex(iLoop,&iNum);

}

A.Dump((char*)" 5 integers ");

int numRows=-1, numColumns=-1;

while (numRows<0)

{

cout << "How many rows :>";

cin >> numRows;

}

numColumns=-1;

while (numColumns<0)

{

cout << "How many columns :>";

cin >> numColumns;

}

DynamicArray2D matrix(numRows,numColumns);

for (int rowLoop=0; rowLoop<numRows; rowLoop++)

{

for (int columnLoop=0; columnLoop<numColumns; columnLoop++)

{

cout << " Please input integer @ row # " << (rowLoop+1) << ": column # " << (columnLoop+1) << " :>";

cin >> iNum;

matrix.IndexerSetAtIndex(rowLoop,columnLoop,&iNum);

}

}

matrix.Dump((char*)"matrix");

}

int main(int argc, char** argv)

{

Go();

return 0;

}