Even Odd in Fortran

Welcome to the Even Odd in Fortran page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

! In program name, - is not allowed
program evenodd
character(len=10) :: argument
Character(26) :: low = 'abcdefghijklmnopqrstuvwxyz'
Character(26) :: cap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
integer :: number, check_capital_letters, check_small_letters, remainder 
! Anything not equal to single argument, Print Error
IF(COMMAND_ARGUMENT_COUNT().NE.1)THEN
  write(*,'(g0.8)')"Usage: please input a number"
  STOP
ENDIF

CALL GET_COMMAND_ARGUMENT(1,argument)
if (argument == "") then
  write(*,'(g0.8)')"Usage: please input a number"
  STOP
endif
! Scan for letters
check_capital_letters = scan(argument, cap)
check_small_letters = scan(argument, low)
! If capital letters exist, print error
if (check_capital_letters > 0) then
  write(*,'(g0.8)')"Usage: please input a number"
  STOP
endif
! If small letters exist, print error
if (check_small_letters > 0) then
  write(*,'(g0.8)')"Usage: please input a number"
  STOP
endif
! read the cmd line arg into number
read (argument, '(I10)') number
! get the remainder
remainder = modulo(number, 2)
if (remainder == 0) then
  write(*,'(g0.8)') "Even"
else
  write(*,'(g0.8)') "Odd"
end if
end program

Even Odd in Fortran was written by:

• Mallikarjuna S J

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.