Lesson topics
Demo 4
c Here we demonstrate the "if - then - else if" construction. c The "if" line ends with "then". c Likewise, every "else if" line ends with "then". program sign real x print *, "What is your number ?" read *, x if (x .gt. 0) then print *, "Your number is positive." else if (x .lt. 0) then print *, "Your number is negative." else if (x .eq. 0) then print *, "Your number is neither positive nor negative." end if print *, "Bye" end