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program case_02
implicit none
! local variable declaration
integer :: marks, out
marks = 81
select case (marks)
case (91:100)
out = 0
print*, "Excellent!"
case (81:90)
out = 1
print*, "Very good!"
case (71:80)
out = 2
print*, "Well done!"
case (61:70)
out = 3
print*, "Not bad!"
case (41:60)
out = 4
print*, "You passed!"
case (:40)
out = 5
print*, "Better try again!"
case default
out = 6
print*, "Invalid marks"
end select
print*, "Your marks are ", marks
if (out /= 1) error stop
! case default at the top
select case (marks)
case default
print*, "Invalid marks"
case (91:100)
print*, "Excellent!"
case (81:90)
print*, "Very good!"
case (71:80)
print*, "Well done!"
case (61:70)
print*, "Not bad!"
case (41:60)
print*, "You passed!"
case (:40)
print*, "Better try again!"
end select
print*, "Your marks are ", marks
! case default in the middle
select case (marks)
case (91:100)
print*, "Excellent!"
case (81:90)
print*, "Very good!"
case default
print*, "Invalid marks"
case (71:80)
print*, "Well done!"
case (61:70)
print*, "Not bad!"
case (41:60)
print*, "You passed!"
case (:40)
print*, "Better try again!"
end select
print*, "Your marks are ", marks
end program
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