C++ Program to concept of default constructor

Program - 


#include<iostream.h>

               #include<conio.h>

class abc

{

private:

int rn;

float fees;

public:

abc(int a=20,float b=1200.25);

void write(void)

{

cout<<rn;

cout<<fees;

}

};

abc::abc(int a,float b)

{

rn=a;

fees=b;

}

void main()

{

class abc m1(320),m2(54,320.23);

clrscr();

m1.write();

m2.write();

getch();

}

Output - 

3201200.2554320.230011