How to print a one-month calendar of user choice using for loop in C?

The logic to print a one-month calendar is as follows −

for(i=1;i<first;i++)
   printf(" ");
for(i=1;i<=noofdays;i++){
   printf("%3d",i);
   if((first+i-1)%7==0)
      printf("\n");
}

Example

 Live Demo

Following example accepts number of days and first day in a month from the user and prints the calendar of a month accordingly −

#include<stdio.h>
int main(){
   int i,noofdays;
   int first;
   printf("enter no of days in a month:\n");
   scanf("%d",&noofdays);
   printf("enter first day in a month:\n");
   scanf("%d",&first);
   for(i=1;i<first;i++)
      printf(" ");
   for(i=1;i<=noofdays;i++){
      printf("%3d",i);
      if((first+i-1)%7==0)
         printf("\n");
   }
   return 0;
}

Output

enter no of days in a month:
30
enter first day in a month:
4
             1 2 3 4
 5  6  7  8  9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30

Mandalika

Published on 05-Mar-2021 11:59:18

• Related Questions & Answers
• How to print calendar for a month in Python?
• How to print a calendar for the given month and year in Python?
• C Program for Print the pattern by using one loop
• Getting calendar for a month in Python
• Print calendar for a given year in C++
• Display Month of Year using Java Calendar
• How to print a diamond using nested loop using C#?
• Calendar Functions in Python - ( calendar(), month(), isleap()?)
• C program to print multiplication table by using for Loop
• Increment a Month using the Calendar Class in Java
• Decrement a Month using the Calendar Class in Java
• Get week of month and year using Java Calendar
• C program to print name inside heart pattern using for loop.
• C++ code to count columns for calendar with month and first day
• Print a Calendar in Python