Thread: Switch case loop

Code:

int screen3 (initial_amount)
{
	//Variable
	int temperature;
	int light_intensity;
	int added_amount;
	int days_of_idle;
	int function;
	int main_menu;

	temperature = 30;
	light_intensity = 2500;

	system ("cls");
	

	printf("(1) Adjust the temperature of the culture. \n");
	printf(" (2) Adjust the light intensity of the culture.\n");
	printf("(3) Add new amount of Lactobacillus into\n");
	printf("      the culture.\n");
	printf("(4) Add random amount of Lactobacillus into\n");
	printf("      the culture.\n");
	printf("(5) Let the culture be idle for one day. \n");
	printf("(6) Let the culture be idle for several days\n");
	printf("      (maximum of 5 days)\n");


	printf ("Current amount of Lactobacillus: %d.\n",initial_amount);
	printf ("Current culture temperature: %d degree.\n",temperature);
	printf ("Current light intensity: %d.\n\n\n",light_intensity);
	printf ("Please select a function:");
	scanf ("%d",&function);

	switch (function)
	{
	case 1:
			screen4 (temperature,initial_amount,light_intensity);
			break;
		
	case 2:
			screen5 (temperature,initial_amount,light_intensity);
			break;

	case 3:
			screen6 (temperature,initial_amount,light_intensity);
			break;

	case 4:
			screen7 (temperature,initial_amount,light_intensity);
			break;
		
	case 5:
			screen8 (temperature,initial_amount,light_intensity);
			break;

	case 6:
			screen9 (temperature,initial_amount,light_intensity);
			break;


	default:
			printf ("Invalid Input, Only 1,2,3,4,5,6,7 is selectable.\n");
			printf ("Please reselect a function:");
			scanf ("%d",&function);
			break;
	}
}

My problem is how to I loop my default? I want the program to repeat if the user enter the function not equal to 1 to 7...
Thanks for the help...

Wrap the whole switch case statement inside a do/while loop and use a flag. Alternatively you could check for values < 1 and > 7, but that would make your switch/case somewhat redundant.

err... what do you mean actually? I'm still new to programming... Can you can provide an example? Thanks...

Originally Posted by justin8077

err... what do you mean actually? I'm still new to programming... Can you can provide an example? Thanks...

Seriously...
You can write the code above, but you can't figure out how to type "do" before and "while()" after the switch statement?

What should we take from that?

sry its my mistake... i see the sentences wrongly...