9) Write a C++ program that calculates Simple Interest using default arguments values.

 source  file name : default.cpp

#include<iostream.h>

#include<conio.h>

void printline(int cnt=80, char ch='*')

{

int n;

cout<<endl;

for(n=0;n<cnt;n++)

{

cout<<ch;//<<" ";

}

}

void simpint(long p,int n,float r=5.5f)

{

double si=(p*n*r)/100;

cout<<"\n simple interest is: "<<si;

}

int main()

{

clrscr();

      cout<<" Function Default Arguments program\n ";

      printline();// function calling with default arguments

      simpint(10000,3,6.5f);// normal calling function

      simpint(10000,3);// function calling with default arguments

      printline(70,'#');

      getch();

 return 0;

}

output: