Function and Simple interest and Default Values for Parameters C++ pro

Calling a Function

#include 

#include

using namespace std;

int max(int num1, int num2);

int main ()

{

   int a = 100;

   int b = 200;

   int ret;

   ret = max(a, b);

   cout << "Max value is : " << ret << endl;

   return 0;

}

int max(int num1, int num2) 

{

   int result;

   if (num1 > num2)

      result = num1;

   else

      result = num2;

   return result; 

}

Default Values for Parameters

#include 

#include

using namespace std;

int sum(int a, int b=20)

{

  int result;

  result = a + b;

  return (result);

}

int main ()

{

   int a = 100;

   int b = 200;

   int result;

   result = sum(a, b);

   cout << "Total value is :" << result << endl;

   result = sum(a);

   cout << "Total value is :" << result << endl;

    return 0;

}

Class to calculate simple interest amount use default value for rate

#include
#include
class interest
{
int n;
float rate,p;
public:
void get()
{
cout<<“\nEnter principle Amount & no. of year: \n”;
cin>>p>>n;
}
void cal(float rate)
{
float si;
si=(p*n*rate)/100;
cout<<“\n\nSimple Interest is: “< }
};
void main()
{
interest i;
clrscr();
i.get();
i.cal(4.5);
getch();
}