Array Programs in C++

This Program performs how the user declare variables as array to store character value
#include <iostream.h>
#include <string.h>
int main()
{
char string[80];
int pos, num_chars;
cout << "Enter a string for the character array: ";
cin.get(string,80,'\n');
cout << "How many characters do you want to extract? ";
cin >> num_chars;
for (pos = 0; pos < num_chars; pos++)
cout << string[pos];
cout << '\n';
return 0;
}

This Program performs how to assign values to variables in the declaration section and to check the value
#include <iostream.h>
int main()
{
enum {mon, tues, wed, thurs, fri};
int day;
for (day = mon; day <= fri; day++)
cout << day<< '\n';
return 0;
}


#include <iostream.h>
#include <string.h>
struct planet {
char name[10];
float distance;
float radius;
};
planet mars;
int main()
{
strcpy(mars.name,"Mars");
mars.distance = 1.5;
mars.radius = 0.4;
cout << "Planetary statistics:\n";
cout << "Name: "<< mars.name << '\n';
cout << "Distance from Sun in AU: " << mars.distance << '\n';
cout <<"Radius in Earth radii: " << mars.radius;
return 0;
}