For automatic objects, constructors and destructors are called each time the objects

#include<iostream.h> 
typedef void(*FunPtr)(int);
int Look(int = 10, int = 20);
void Note(int); 
int main()
{
    FunPtr ptr = Note;
    (*ptr)(30); 
    return 0;
}
int Look(int x, int y)
{
    return(x + y % 20);
}
void Note(int x)
{
    cout<< Look(x) << endl;
}

#include<iostream.h>
void Tester(float xx, float yy = 5.0);
class CuriousTab
{
    float x; 
    float y; 
    public:
    void Tester(float xx, float yy = 5.0)
    {
        x = xx;
        y = yy;
        cout<< ++x % --y; 
    }
};
int main()
{
    CuriousTab objCuriousTab;
    objCuriousTab.Tester(5.0, 5.0);
    return 0; 
}

#include<iostream.h> 
long FactFinder(long = 5); 
int main()
{
    for(int i = 0; i<= 0; i++)
        cout<< FactFinder() << endl; 
    return 0;
}
long FactFinder(long x)
{
    if(x < 2)
        return 1; 
    long fact = 1; 
    for(long i = 1; i <= x-1; i++)
        fact = fact * i; 
    return fact; 
}

#include<iostream.h> 
class CuriousTabTest
{
    public:
    CuriousTabTest(int &x, int &y)
    {
        x++;
        y++;
    } 
};
int main()
{
    int a = 10, b = 20;
    CuriousTabTest objBT(a, b); 
    cout<< a << " " << b; 
    return 0; 
}

#include<iostream.h> 
class CuriousTab
{
    int *p; 
    public:
    CuriousTab(int xx, char ch)
    {
        p  = new int(); 
        *p = xx + int(ch); 
        cout<< *p;
    }
    ~CuriousTab() 
    {
        delete p;
    }
};
int main()
{
    CuriousTab objCuriousTab(10, 'B'); 
    return 0;
}

#include<iostream.h> 
struct MyData
{
    public:
    int Addition(int a, int b = 10)
    {
        return (a *= b + 2);
    }
    float Addition(int a, float b);
};
int main()
{
    MyData data;
    cout<<data.Addition(1)<<" ";
    cout<<data.Addition(3, 4);
    return 0; 
}