Online C++ Programming Test - C++ Programming Test - Random

1. All function calls are resolved at compile-time in Procedure Oriented Programming.
2. All function calls are resolved at compile-time in OOPS.

#include<iostream.h> 
static double gDouble; 
static float  gFloat; 
static double gChar; 
static double gSum = 0; 
class BaseOne
{
    public:
    void Display(double x = 0.0, float y = 0.0, char z = 'A')
    {
        gDouble = x;
        gFloat  = y;
        gChar   = int(z);
        gSum    = gDouble + gFloat + gChar;
        cout << gSum; 
    }
};
class BaseTwo
{
    public: 
    void Display(int x = 1, float y = 0.0, char z = 'A')
    {
        gDouble = x;
        gFloat  = y;
        gChar   = int(z); 
        gSum    = gDouble + gFloat + gChar;
        cout << gSum;
    }
};
class Derived : public BaseOne, BaseTwo
{
    void Show()
    {
        cout << gSum;
    } 
}; 
int main()
{
    Derived objDev;
    objDev.BaseTwo::Display(10, 20, 'Z');
    return 0; 
}

1. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable.
2. A reference is not a constant pointer.

#include<iostream.h> 
int main()
{
    int arr[] = {1, 2 ,3, 4, 5}; 
    int &zarr = arr;
    for(int i = 0; i <= 4; i++)
    {
        arr[i] += arr[i];
    }
    for(i = 0; i <= 4; i++)
        cout<< zarr[i]; 
    return 0; 
}

#include<iostream.h> 
class IndiaBix
{
    int x, y; 
    public:
    IndiaBix(int &xx, int &yy)
    {
        x = xx;
        y = yy;
        Display();
    }
    void Display()
    {
        cout<< x << " " << y;
    }
};
int main()
{
    int x1 = 10; 
    int &p = x1;
    int y1 = 20; 
    int &q = y1; 
    IndiaBix objBix(p, q); 
    return 0; 
}

#include<iostream.h> 
enum xyz
{
    a, b, c
};
int main() 
{
    int x = a, y = b, z = c;
    int &p = x, &q = y, &r = z;
    p = ++x;
    q = ++y;
    r = ++c;
    cout<< p << q << r;
    return 0;
}

#include<iostream.h>
#include<string.h> 
class IndiaBix
{
    public:
    void GetData(char *s, int x, int y )
    {
        int i = 0;
        for (i = x-1; y>0; i++)
        {
            cout<< s[i];
            y--; 
        } 
    }
}; 
int main()
{
    IndiaBix objBix;
    objBix.GetData((char*)"Welcome!", 1, 3);
    return 0; 
}