Modify program such that the values for the 2 dimensional array is NOT initializ

Question

Modify program such that the values for the 2 dimensional array is NOT initialized but rather read from keyboard. This must be done in a function. Test it out with the showArray() function and ensure that it does print the values inputted corrently.

heres the program;

#include<iostream>
#include<iomanip>
using namespace std;


// global constants
const int COLS = 4;
const int TBL1_ROWS = 3;
const int TBL2_ROWS = 4;

void showArray(const int[] [COLS], int);

int main()
{
    int table1[TBL1_ROWS][COLS] = {{1,2,3,4},{5,6 ,7,8}, {9,10,11,12}};
    int table2[TBL2_ROWS][COLS] = {{10,20,30,40}, {50,60,70,80}, {90,100,110,120},{130,140,150,160}};

    cout << "The contents of table1 are : ";
    showArray(table1, TBL1_ROWS);
    cout << "The contents of table2 are : ";
    showArray(table2, TBL2_ROWS);
    cout << " ";
    system("PAUSE");
    return 0;
}

void showArray(const int array [] [COLS], int rows)
{
    for(int x = 0; x < rows; x++)
    {
        for(int y = 0; y<COLS; y++)
        {
            cout << setw(4) << array[x][y] << " " ;
        }
        cout << endl;
    }
}
Modify program such that the values for the 2 dimensional array is NOT initialized but rather read from keyboard. This must be done in a function. Test it out with the showArray() function and ensure that it does print the values inputted corrently.

heres the program;

#include<iostream>
#include<iomanip>
using namespace std;


// global constants
const int COLS = 4;
const int TBL1_ROWS = 3;
const int TBL2_ROWS = 4;

void showArray(const int[] [COLS], int);

int main()
{
    int table1[TBL1_ROWS][COLS] = {{1,2,3,4},{5,6 ,7,8}, {9,10,11,12}};
    int table2[TBL2_ROWS][COLS] = {{10,20,30,40}, {50,60,70,80}, {90,100,110,120},{130,140,150,160}};

    cout << "The contents of table1 are : ";
    showArray(table1, TBL1_ROWS);
    cout << "The contents of table2 are : ";
    showArray(table2, TBL2_ROWS);
    cout << " ";
    system("PAUSE");
    return 0;
}

void showArray(const int array [] [COLS], int rows)
{
    for(int x = 0; x < rows; x++)
    {
        for(int y = 0; y<COLS; y++)
        {
            cout << setw(4) << array[x][y] << " " ;
        }
        cout << endl;
    }
}

Explanation / Answer

#include<iostream>

#include<iomanip>

using namespace std;

// global constants

const int COLS = 4;

const int TBL1_ROWS = 3;

const int TBL2_ROWS = 4;

void showArray(const int[] [COLS], int);

void readArray( int[] [COLS], int);

int main()

{

int table1[TBL1_ROWS][COLS];

int table2[TBL2_ROWS][COLS];

readArray(table1, TBL1_ROWS);

readArray(table2, TBL2_ROWS);

cout << "The contents of table1 are : ";

showArray(table1, TBL1_ROWS);

cout << "The contents of table2 are : ";

showArray(table2, TBL2_ROWS);

cout << " ";

//system("PAUSE");

return 0;

}

void showArray(const int array [] [COLS], int rows)

{

for(int x = 0; x < rows; x++)

{

for(int y = 0; y<COLS; y++)

{

cout << setw(4) << array[x][y] << " " ;

}

cout << endl;

}

}

void readArray( int array [] [COLS], int rows)

{

for(int x = 0; x < rows; x++)

{

for(int y = 0; y<COLS; y++)

{

int value;

cout<<"Enter a value: "; //delete this line if you dont want to show message while reading values

cin>>value;

array[x][y] = value;

}

}

}

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.