Write a program that inputs four strings that represent floating-point values, converts the strings to double values, sums the values and prints the total of the four values. Use only the C-style string-processing techniques shown in this chapter.

Question

What will be an ideal response?

Answer 1

```
#include
#include
#include
using namespace std;

const int SIZE = 15;

int main()
{
char stringValue[ SIZE ];
double sum = 0.0;

for ( int i = 1; i <= 4; i++ )
{
cout << "Enter a floating-point value: ";
cin >> stringValue;
sum += atof( stringValue ); // convert to double
} // end for

cout << fixed << "\nThe total of the values is " << setprecision( 3 )
<< sum << endl;

return 0;
} // end main
```
Enter a floating-point value: 4.3
Enter a floating-point value: 6.4
Enter a floating-point value: 2.4
Enter a floating-point value: 7.2
The total of the values is 20.300