Practical 13 OOP

PRACTICAL – 13.1

Write a program to demonstrate how parameters are passed to the base class constructor via the derived class constructor

#include <iostream>

using namespace std;

class Parent

{

    int parent_num;

public:

    Parent(int a)

    {

        parent_num = a;

    }

    void print_p()

    {

        cout << parent_num << endl;

    }

};

class Child : public Parent

{

    int child_num;

public:

    Child(int a, int b) : Parent(a)

    {

        child_num = b;

    }

    void print_c()

    {

        cout << child_num << endl;

    }

};

int main()

{

    Child r(22, 14);

    r.print_p();

    r.print_c();

    return 0;

}

Practical 13.2.1

Write a program to use the following functions:  Put(), Get().

#include <iostream>

using namespace std;

int main()

{

    int count = 0;

    char c;

    cout << "Intput Text : ";

    cin.get(c);

    while (c != '\n')

    {

        cout.put(c);

        count++;

        cin.get(c);

    }

    cout << "Number of Charecter is " << count << endl;

    return 0;

}

Practical 13.2.2

Write a program to use the following functions:  Getline(), Write().

#include <iostream>

#include <string>

using namespace std;

int main()

{

    int count = 0;

    char *c;

    cout << "Intput Text : ";

    cin.getline(c, 3);

    cout.write(c, 2);

    cout << c;

    return 0;

}

Practical 13.3.1

Write  a  program  to  produce  formatted  output  using  the  following  functions:  Width(), Precision(), Fill(), Setf(), Unsetf()

#include <iostream>

using namespace std;

int main()

{

    float f = 1.2222222;

    cout.precision(2);

    cout << f << endl;

    cout.fill('&');

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

    cout.width(10);

    cout << "123" << endl;

    return 0;

}