While-Switch function continuous loop demo in C language

while-switch-loop.c

#include <stdio.h>
#include <conio.h>

int main(){
	int answer = 1;
      int choice;
    
      while (answer == 1){
      
      printf("\n\n*****CHOOSE YOUR CHOICE*****\n");
      printf("1) ADD DATA\n");
      printf("2) DELETE DATA\n");
      printf("3) SHOW ALL\n");
      printf("4) SHOW RECORD\n");
      printf("5) ALTER DATA\n");
      printf("6) Exit \n");
      printf("Enter your choice : ");
      scanf("%d", &choice);
      
      switch(choice){
         case 1 : printf("1");
                  break;
         case 2 : printf("2");
                	break;
         case 3 : printf("3");
                	break;
         case 4 : printf("4");
                	break;
         case 5 : printf("5");
                	break;
         case 6 : printf("6");
                	break;
         default: printf("error");
      }
	
	printf("\nDo you want to continue (1/0): \n");
	scanf(" %D", &answer);

     }

      printf("GoodBye!");
      return 0;
}