Program to Check if a Date is Valid and Print the Incremented Date

Python Program to Check if a Date is Valid and Print the Incremented Date

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Given a date , the task is to Check if a Date is Valid and increment the given date and print it in python

Examples:

Example1:

Input:

given date ="11/02/2001"

Output:

The incremented given date is:  12 / 2 / 2001

Example2:

Input:

 given date = "29/02/2001"

Output:

The given date 29/02/2001 is not valid

Program to Check and Print the Incremented Date in Python

Below are the ways to check and implement the increment the given date in Python:

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1)By using if..elif..else Conditional Statements  and split() function(Static Input)

Approach:

  • Give the date in the format dd/mm/yyyy as static input
  • Separate the date by storing the day, month, and year in different variables.
  • Check the validity of the day, month, and year using various if-statements.
  • If the date is valid, increment it .
  • Print the increment date.
  • Exit of Program.

Below is the implementation:

# given given_data
given_date = "11/02/2001"
# splitting the given_data by / character to separate given_data,month and year
day, month, year = given_date.split('/')
day = int(day)
month = int(month)
year = int(year)
if(month == 1 or month == 3 or month == 5 or month == 7 or month == 8 or month == 10 or month == 12):
    maxdays = 31
elif(month == 4 or month == 6 or month == 9 or month == 11):
    maxdays = 30
elif(year % 4 == 0 and year % 100 != 0 or year % 400 == 0):
    maxdays = 29
else:
    maxdays = 28
if(month < 1 or month > 12):
    print("The given date", given_date, "is not valid")
elif(day < 1 or day > maxdays):
    print("The given date", given_date, "is not valid")
elif(day == maxdays and month != 12):
    day = 1
    month = month+1
    print("The incremented given date is: ", day, month, year)
elif(day == 31 and month == 12):
    day = 1
    month = 1
    year = year+1
    print("The incremented given date is: ", day, '/', month, '/', year)
else:
    day = day + 1
    print("The incremented given date is: ",  day, '/', month, '/', year)

Output:

The incremented given date is:  12 / 2 / 2001

Explanation:

  • Give the date in the format dd/mm/yyyy as static input.
  • The date is then divided, with the day, month, and year recorded in separate variables.
  • The date is invalid if it is not between 1 and 30 in the months of April, June, September, and November.
  • The date is invalid if it is not between 1 and 31 for the months of January, March, April, May, July, August, October, and December.
  • If the month is February, the day should be between 1 and 28 for non-leap years and between 1 and 29 for leap years.
  • If the date is correct, it should be increased.
  • The final incremented date is printed

2)By using if..elif..else Conditional Statements  and split() function(User Input)

Approach:

  • Scan the date, month and year as int(input()).
  • Separate the date by storing the day, month, and year in different variables.
  • Check the validity of the day, month, and year using various if-statements.
  • If the date is valid, increment it .
  • Print the increment date.
  • Exit of Program.

Below is the implementation:

# Scan the date, month and year as int(input()).
day = int(input("Enter some random day = "))
month = int(input("Enter some random month = "))
year = int(input("Enter some random year = "))
if(month == 1 or month == 3 or month == 5 or month == 7 or month == 8 or month == 10 or month == 12):
    maxdays = 31
elif(month == 4 or month == 6 or month == 9 or month == 11):
    maxdays = 30
elif(year % 4 == 0 and year % 100 != 0 or year % 400 == 0):
    maxdays = 29
else:
    maxdays = 28
if(month < 1 or month > 12):
    print("The given date", given_date, "is not valid")
elif(day < 1 or day > maxdays):
    print("The given date", given_date, "is not valid")
elif(day == maxdays and month != 12):
    day = 1
    month = month+1
    print("The incremented given date is: ", day, month, year)
elif(day == 31 and month == 12):
    day = 1
    month = 1
    year = year+1
    print("The incremented given date is: ", day, '/', month, '/', year)
else:
    day = day + 1
    print("The incremented given date is: ",  day, '/', month, '/', year)

Output:

Enter some random day = 11
Enter some random month = 2
Enter some random year = 2001
The incremented given date is: 12 / 2 / 2001

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