// Example of array declarations and initializer sets

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
   int i;				// loop counter

   int array1[10];			// uninitialized array
   int array2[5] = {2, 4, 6, 8, 10};	// initializer set used
   int array3[5] = {2, 4};		// last three elements default to 0
   int array4[] = {10, 20, 30};		// array is size 3

   /* Initializing arrays of other types */
   double nums[5] = {1.1, 2.2, 3.3, 4.4, 5.5};
   char vowels[5] = {'a', 'e', 'i', 'o', 'u'};

   /* print out the array contents, for each array, using for-loops */

   cout << "\nContents of uninitialized array:\n";
   for (i = 0; i < 10; i++)
      cout << array1[i] << ' ';

   cout << "\n\nArray2:   ";
   for (i = 0; i < 5; i++)
      cout << array2[i] << ' ';

   cout << "\nArray3:   ";
   for (i = 0; i < 5; i++)
      cout << array3[i] << ' ';

   cout << "\nArray4:   ";
   for (i = 0; i < 3; i++)
      cout << array4[i] << ' ';

   cout << fixed << setprecision(1);

   cout << "\nArray of doubles:   ";
   for (i = 0; i < 5; i++)
      cout << nums[i] << ' ';

   cout << "\nArray of vowels:   ";
   for (i = 0; i < 5; i++)
      cout << vowels[i] << ' ';

   cout << '\n';

   return 0;
}