Answer to Question #45238 in C++ for vinoth

Question

how to enter two or more names using two dimensional array?

Answer 1

#include <cstring>
#include <cstdio>
#include <cctype>
const int MAX_NAMES = 32;
const int MAX_NAME_LENGTH = 128;
typedef char Array2D[MAX_NAMES][MAX_NAME_LENGTH];
void input_names(Array2D& names)
{
   char buffer[MAX_NAME_LENGTH];
   char choice;
   
   /* Fill the 2D array of chars with zeros.
    * Zero-char indicates the end of the ANSI string */
   memset(names, 0, MAX_NAMES * MAX_NAME_LENGTH);
   
   for (int k = 0; k < MAX_NAMES; k++)
   {
      /* Ask the user whether he/she wants to enter another name */
      printf("Do you want to input a new name? (y/n): ");
      do
      {
         scanf("%s", buffer);
         
         /* Validate user selection */
         choice = tolower(buffer[0]);
         if (strlen(buffer) == 1 && (choice == 'y' || choice == 'n'))
            break;
            
         printf("Wrong choice. Please re-enter (y/n): ");
      }
      while (true);
      
      /* Stop prompting for new names if 'n' was selected */
      if (choice == 'n')
      {
         printf("\n");
         return;
      }
      
      /* Ask the user to enter a new name otherwise */
      printf("Enter a new name: ");
      scanf("%s", names[k]);
      printf("\n");
   }
   printf("The maximum number of names (%d) was reached.\n", MAX_NAMES);
}
void print_names(const Array2D& names)
{
   for (int k = 0; k < MAX_NAMES; k++)
   {
      /* Break if the current one and all succeeding strings are empty */
      if (names[k][0] == '\0')
         break;
      printf("%s\n", names[k]);      
   }
}
int main()
{
   Array2D names;
   input_names(names);
   
   printf("You've entered the following names:\n");
   print_names(names);
   return 0;
}