C Programming Code Examples C > If Else and Switch Case Code Examples program to enter week number and print day of week program to enter week number and print day of week Write a C program to input week number(1-7) and print the corresponding day of week name using if else. How to print day of week using if else in C programming. Input week day number from user. Store it in some variable say week. Print Monday if(week == 1). I have assumed Monday as first day of week. Similarly, check condition for all 7 days and print the corresponding day name. #include <stdio.h> int main() { int week; /* Input week number from user */ printf("Enter week number (1-7): "); scanf("%d", &week); if(week == 1) { printf("Monday"); } else if(week == 2) { printf("Tuesday"); } else if(week == 3) { printf("Wednesday"); } else if(week == 4) { printf("Thursday"); } else if(week == 5) { printf("Friday"); } else if(week == 6) { printf("Saturday"); } else if(week == 7) { printf("Sunday"); } else { printf("Invalid Input! Please enter week number between 1-7."); } return 0; }