Practical 14 OOP

PRACTICAL – 14.1

Use various flags and bit fields to produce formatted output.

#include <iostream>

#include <cmath>

using namespace std;

int main()

{

    cout.fill('*');

    cout.setf(ios::right, ios::adjustfield);

    cout.width(10);

    cout << "VALUE" << endl;

    cout.fill('_');

    cout.setf(ios::right, ios::adjustfield);

    cout.width(10);

    for (int i = 0; i < 100; i++)

    {

        cout.fill('_');

        cout.width(3);

        cout << i;

        cout.width(10);

        cout.precision(3);

        cout << sqrt(i) << endl;

    }

    return 0;

}

PRACTICAL –  14.2

Write a program to use manipulators setw, setiosflags and setprecision for formatted output.

 

#include <iostream>

#include <iomanip>

using namespace std;

ostream &number(ostream &output)

{

    output << setfill('-')

           << setw(15)

           << setiosflags(ios::right)

           << setiosflags(ios::fixed);

    output << "Number = ";

    return output;

}

ostream &squre(ostream &output)

{

    output << setfill(' ')

           << setw(15)

           << setiosflags(ios::right)

           << setiosflags(ios::fixed);

    output << "Squre = ";

    return output;

}

int main()

{

    for (int i = 0; i < 10; i++)

    {

        cout << number << i << squre << i << endl;

    }

}

PRACTICAL – 14.3

Write  a  program  to  read  a  list  containing  item  name,  item  code,  and  cost  interactively  and produce a three column output as shown below.

NAME            CODE            COST

TURBOC++   1001               250.95

C Primer       905                 95.70

….                   …                    …

…                    …                    …

#include <iostream>

#include <iomanip>

using namespace std;

class manage

{

    char *p;

    int code;

    float cost;

public:

    manage()

    {

        p = new char[20];

        cout << "Enter Item name:";

        cin.ignore();

        cin.getline(p, 19);

        cout << "Enter Item Code:";

        cin.ignore();

        cin >> code;

        cout << "Enter Item Cost:";

        cin >> cost;

        cout << endl;

    }

    ~manage()

    {

        delete[] p;

    }

    void Display()

    {

        cout << setw(15);

        cout.setf(ios::left, ios::adjustfield);

        cout << this->p;

        cout << setw(5);

        cout.setf(ios::right, ios::adjustfield);

        cout << this->code;

        cout << setw(15) << setprecision(2);

        cout.setf(ios::showpoint);

        cout.setf(ios::fixed, ios::floatfield);

        cout << this->cost << endl;

    }

};

void indexDisplay()

{

    cout << setw(15) << setiosflags(ios::left) << "NAME";

    cout << setw(5);

    cout.setf(ios::right, ios::adjustfield);

    cout << "CODE";

    cout << setw(15) << "COST" << endl;

}

void horizontalLine()

{

    cout << setw(40) << setfill('-') << "\n";

    cout.fill(' ');

    cout << endl;

}

int main()

{

    int size;

    cout << "How many products do you wants to enter:";

    cin >> size;

    manage qty[size];

    horizontalLine();

    indexDisplay();

    horizontalLine();

    for (int i = 0; i < size; i++)

        qty[i].Display();

    horizontalLine();

    return 0;

}