Declaration Format

Which of the following are incorrect declarations and why? (If you think a declaration may be correct in a given situation then say what the situation would be.)

1. ReAl :: x
2. CHARACTER :: name
3. CHARACTER(LEN=10) :: name
4. REAL :: var-1
5. INTEGER :: 1a
6. BOOLEAN :: loji
7. DOUBLE :: X
8. CHARACTER(LEN=5) :: town = "Glasgow"
9. CHARACTER(LEN=*) :: town = "Glasgow"
10. CHARACTER(LEN=*), PARAMETER :: city = "Glasgow"
11. REAL :: pi = +22/7
12. LOGICAL :: wibble = .TRUE.
13. CHARACTER(LEN=*), PARAMETER :: "Bognor"
14. REAL, PARAMETER :: pye = 22.0/7.0
15. REAL :: two_pie = pye*2
16. REAL :: a = 1., b = 2
17. LOGICAL(LEN=12) :: frisnet
18. CHARACTER(LEN=6) :: you_know = 'y'know"
19. CHARACTER(LEN=6) :: you_know = "y'know"
20. INTEGER :: ia ib ic id in free format source form
21. DOUBLE PRECISION :: pattie = +1.0D0
22. DOUBLE PRECISION :: pattie = -1.0E-0
23. LOGICAL, DIMENSION(2) bool
24. REAL :: poie = 4.*atan(1.)
25. declare the following objects,

    

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