CSE225 Task1a

1.cpp

#include <iostream>
using namespace std;
class MyInfo
{
private: //  data  hidden  from  outside  world
    int x;

public:
    //  function  to  set  value  of  variable  x
    void set(int a) { x = a; }
    //  function  to  return  value  of  variable  x
    int get()
    {
        return x;
    }
};
// main  function
int main()
{
    MyInfo obj;
    obj.set(5);
    cout << obj.get();
    // cout  is  used  inspite  of  printf()
    return 0;
}

2.cpp

#include <iostream>
using namespace std;
class MyInfo
{
private:
    //  data  hidden  from  outside  world
    int x;

public:
    //  function  to  set  value  of  variable  x
    void set(int a);
    //  function  to  return  value  of  variable  x
    int get();
};
void MyInfo::set(int a) { x = a; }
int MyInfo::get() { return x; } // main  function
int main()
{
    MyInfo obj;
    obj.set(5);
    cout << obj.get(); // cout is used inspire of printf()
    return 0;
}

3.cpp

#include <iostream>
using namespace std;
class Calculator
{
private:
    int num1;
    int num2;

public:
    Calculator(int n1, int n2)
    { // Constructor
        num1 = n1;
        num2 = n2;
    }
    int add() { return num1 + num2; }
    int multiply()
    {
        return num1 * num2;
    }
    void display()
    {
        cout << "Numbers :  " << num1 << " and " << num2;
        cout << "\n\t Add : " << add();
        cout << "\n\t Multiply : " << multiply();
        cout << endl
             << endl;
    }
};
int main()
{
    Calculator a(2, 4);
    Calculator b(5, 3);
    a.display();
    b.display();
    return 0;
}

4.cpp

#include <iostream>
using namespace std;
template <class T>
class Calculator
{
private:
    T num1;
    T num2;

public:
    Calculator(T n1, T n2)
    {
        num1 = n1;
        num2 = n2;
    }
    T add()
    {
        return num1 + num2;
    }
    T multiply()
    {
        return num1 * num2;
    }
    void display()
    {
        cout << "Numbers :  " << num1 << " and " << num2;
        cout << "\n\t Add : " << add();
        cout << "\n\t Multiply : " << multiply();
        cout << endl
             << endl;
    }
};
int main()
{
    Calculator<int> a(2, 4);
    Calculator<float> b(2.2, 4.1);
    a.display();
    b.display();
    return 0;
}

5.cpp

#include <iostream>
using namespace std;
template <class T>
class Calculator
{
private:
    T num1;
    T num2;

public:
    Calculator(T n1, T n2);
    T add();
    T multiply();
    void display();
};
template <class T>
Calculator<T>::Calculator(T n1, T n2)
{
    num1 = n1;
    num2 = n2;
}
template <class T>
T Calculator<T>::add()
{
    return num1 + num2;
}
template <class T>
T Calculator<T>::multiply()
{
    return num1 * num2;
}
template <class T>
void Calculator<T>::display()
{
    cout << "Numbers :  " << num1 << " and " << num2;
    cout << "\n\t Add : " << add();
    cout << "\n\t Multiply : " << multiply();
    cout << endl
         << endl;
}
int main()
{
    Calculator<int> a(2, 4);
    Calculator<float> b(2.2, 4.1);
    a.display();
    b.display();
    return 0;
}

6.cpp

#include <iostream>
using namespace std;
class Box
{
private:
    double length;
    // Length  of a box
    double breadth;
    // Breadth  of a box
    double height;
    //  Height  of a box
public:
    //  Constructor  definition
    Box(double l = 2.0, double b = 2.0, double h = 2.0)
    {
        cout << " Constructor  called." << endl;
        length = l;
        breadth = b;
        height = h;
    }
    double Volume() { return length * breadth * height; }
    int compare(Box box) { return this->Volume() > box.Volume(); }
};
int main(void)
{
    Box Box1(3.3, 1.2, 1.5); //  Declare  box
    Box Box2(8.5, 6.0, 2.0); //  Declare  box
    if (Box1.compare(Box2))
    {
        cout << "Box2  is  smaller  than Box1" << endl;
    }
    else
    {
        cout << "Box2  is  equal  to  or  larger  than Box1" << endl;
    }
    return 0;
}

7.cpp

#include <iostream>
using namespace std;
class Complex
{
private:
    int real, imag;

public:
    Complex(int r = 0, int i = 0)
    {
        real = r;
        imag = i;
    }
    //  This  i s  automatically  called  when '+'i s  used  with
    // between two Complex  objects
    Complex operator+(Complex &obj)
    {
        Complex res;
        res.real = real + obj.real;
        res.imag = imag + obj.imag;
        return res;
    }
    void print() { cout << real << " + i" << imag << endl; }
};
int main()
{
    Complex c1(10, 5);
    Complex c2(2, 4);
    Complex c3 = c1 + c2; // An example  call  to  "operator+"
    c3.print();
}