Explain switch case statement with example to read number between 1 to 7 and print relatively day Sunday to Saturday.

Question: Explain switch case statement with example to read number between 1 to 7 and print relatively day Sunday to Saturday.

Write a C program to input week number(1-7) and print day of week name using switch case. C program to find week day name using switch case. How to find day name of week using switch case in C programming.

Example:
Input:

Input week number(1-7): 2

Output:

Tuesday

How the switch case works to print the day of the week name using the switch case:

1. Input day number from user. Store it in some variable say week.
2. Switch the value of week i.e. use switch(week) and match with cases.
3. There can be 7 possible values(choices) of week i.e. 1 to 7. Therefore write 7 case inside switch. In addition, add default case as an else block.
4. For case 1: print "MONDAY", for case 2: print "TUESDAY" and so on. Print "SUNDAY" for case 7:.
5. If any case does not matches then, for default: case print "Invalid week number".

You can also print day of week name using if...else statement.

Program to print day of week name using switch...case

1. /**
2.  * C program to print day of week using switch case
3.  */
4. 
   
5. #include <stdio.h>
6. 
   
7. int main()
8. {
9.     int week;
10.     
11.     /* Input week number from user */
12.     printf("Enter week number(1-7): ");
13.     scanf("%d", &week);
14.     
15.     switch(week)
16.     {
17.         case 1: 
18.             printf("Monday");
19.             break;
20.         case 2: 
21.             printf("Tuesday");
22.             break;
23.         case 3: 
24.             printf("Wednesday");
25.             break;
26.         case 4: 
27.             printf("Thursday");
28.             break;
29.         case 5: 
30.             printf("Friday");
31.             break;
32.         case 6: 
33.             printf("Saturday");
34.             break;
35.         case 7: 
36.             printf("Sunday");
37.             break;
38.         default: 
39.             printf("Invalid input! Please enter week number between 1-7.");
40.     }
41. 
    
42.     return 0;
43. }

"Monday" is as the first day of week.