Chapter 7

1

Chapter 7

ARRAYS

2

One Dimensional (Vector)

INTEGER MONTH(12)

1 2 3 4 5 6 7 8 9 10 11 12

ARRAY DECLARATIONS

3

One Dimensional (Vector)

INTEGER MONTH(12)

ARRAY DECLARATIONS

1 2 3 4 5 6 7 8 9 10 11 12

31 28 31 30 31 30 31 31 30 31 30 31

4

THE DATA STATEMENT

INTEGER A(4), B(3,4), C(3,40), D(30,40)DATA A /22,12,8,3/DATA B /1,2,3,4,5,6,7,8,9,10,11,12/DATA C /3*0, 39*(1,2,3)/

Fill in the blank arrays:

A B

.

.

.

C

53

8

12

22

A

THE DATA STATEMENT



B

.

.

.

C

6

THE DATA STATEMENT



3

8

12

22

A B

1 4 7 10

2 5 8 11

3 6 9 12 .

.

.

C

7

THE DATA STATEMENT



3

8

12

22

A B

1 4 7 10

2 5 8 11

3 6 9 12 33.330

22.220

11.110

C

8

INTEGER A(4), B(3,4), C(3,40), D(30,40)DATA D /1200*0/


THE DATA STATEMENT

D

.

….…

.

9

INTEGER A(4), B(3,4), C(3,40), D(30,40)DATA D /1200*0/


THE DATA STATEMENT

D

00000

00.000

….…

00.000

00000

10

THE DATA STATEMENT

INTEGER I, J

REAL X(4)

DATA I, J, X /1, 2, 1.5, 3.0, 2.5, 5.5/ Fill in the blank arrays:

X

I J

11

THE DATA STATEMENT

INTEGER I, J

REAL X(4)


X

1

I J

12

THE DATA STATEMENT

INTEGER I, J

REAL X(4)


X

1

I

2

J

13

THE DATA STATEMENT

INTEGER I, J

REAL X(4)


5.5

2.5

3.0

1.5

X

1

I

2

J

14

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

12

22

A

5.5

2.5

3.0

1.5

X

15

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

17

22

A

5.5

2.5

3.0

1.5

X

16

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

17

23

A

5.5

2.5

3.0

1.5

X

17

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

17

23

A

5.5

2.5

3.0

1.5

X

18

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)

Fill in the blank arrays:X(A(4)-1)= X(3-1)= X(2)

3

8

17

23

A

5.5

2.5

3.0

1.5

X

ARRAY REFERENCES

19

3.0

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

17

23

A

5.5

2.5

1.5

X

20

15.7

ARRAY REFERENCES

A(2) = 17

A(I) = A(I) + 1

X(A(4)-1) = 7.7 + A(I+J)


3

8

17

23

A

5.5

2.5

1.5

X =7.7 + A(1+2)

=7.7 + A(3)

=7.7 + 8X(2)

21

ARRAY REFERENCES

DO I = 1, 30DO J = 1, 40 D(I,J) = I + (J-1)*30ENDDO

ENDDO

Fill in the blank arrays: D

.

….…

.

22


ENDDO


ARRAY REFERENCES

D

.

….…

.

I

23


ENDDO


.

….…

.

ARRAY REFERENCES

I

J

24

ARRAY REFERENCES


ENDDO


.

….…

.

1I

J

25

ARRAY REFERENCES


ENDDO


.

….…

.

1

J

I

26

ARRAY REFERENCES


ENDDO


.

….…

.

1I

J

27

ARRAY REFERENCES


ENDDO


.

….…

.

311I

J

28


ENDDO


ARRAY REFERENCES

D

.

….…

.

311I

29


ENDDO


ARRAY REFERENCES

D

.

….…

.

1171114161311

J

30


ENDDO


.

….…

.

1171114161311

ARRAY REFERENCES

31


ENDDO


ARRAY REFERENCES

D

.

….…

.

1171114161311

I

32


ENDDO


ARRAY REFERENCES

D

.

….…

.

1171114161311

2 32 62 1142 1172I

33


ENDDO


1199

ARRAY REFERENCES

D

12001170906030

1169.895929

….…

.

1171114161311

2 32 62 1142 1172

34

IMPLIED DO

A feature of READ, PRINT, and WRITE

Syntax:

(io_list, var=init, limit[,step])

Examples PRINT *, (X(I), I = 1, 4)

READ *, (X(I), I = 1, 4)

35

ARRAY I/O

REAL X(4), Y(4,4)INTEGER I, J

READ *, XREAD *, X(1), X(2), X(3), X(4)READ *, (X(I), I = 1, 4)

2.7

Same}X

36

ARRAY I/O



6.12.7

} Same

X

37

ARRAY I/O

REAL X(4)INTEGER I, J, Y(4,4)


1.96.12.7

} Same

X

38

ARRAY I/O



9.31.96.12.7

} Same

X

39

PRINT *, X

PRINT *, X(1), X(2), X(3), X(4)

PRINT *, (X(I), I = 1, 4)

PRINT *, (X(I), I = 4, 1, -1)

ARRAY I/O

X

9.31.96.12.7

} Same

40

PRINT *, X

PRINT *, X(1), X(2), X(3), X(4)

PRINT *, (X(I), I = 1, 4)

PRINT *, (X(I), I = 4, 1, -1)

ARRAY I/O

9.31.96.12.7

} Same

X

41

PRINT *, X

PRINT *, X(1), X(2), X(3), X(4)

PRINT *, (X(I), I = 1, 4)

PRINT *, (X(I), I = 4, 1, -1)

ARRAY I/O

9.31.96.12.7

} Same

X

42

PRINT *, X

PRINT *, X(1), X(2), X(3), X(4)

PRINT *, (X(I), I = 1, 4)

PRINT *, (X(I), I = 4, 1, -1)

ARRAY I/O

2.76.11.99.3

} Same

X

43

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

4

3

2

1

ARRAY I/O

} Same

Y

44

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

ARRAY I/O

} Same

84

73

62

51

Y

45

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

ARRAY I/O

} Same

1284

1173

1062

951

Y

46

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

ARRAY I/O

} Same

161284

151173

141062

13951

Y

47

ARRAY I/O

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

4321

Y

48

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

ARRAY I/O

8765

4321

Y

49

ARRAY I/O

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

12119

8765

4321

10

Y

50

READ *, Y

READ *, ((Y(I,J), I = 1, 4), J = 1, 4)

READ *, ((Y(I,J), J = 1, 4), I = 1, 4)

ARRAY I/O

16151413

12119

8765

4321

10

Y

51

PRINT *, Y

PRINT *, ((Y(I,J), I = 1, 4), J = 1, 4)

PRINT *, ((Y(I,J), J = 1, 4), I = 1, 4)

DO I = 1, 4

PRINT *, (Y(I,J), J = 1, 4)

ENDDO

ARRAY I/O

} Same

16151413

12119

8765

4321

10

Y

52

ARRAY I/O

PRINT *, Y

PRINT *, ((Y(I,J), I = 1, 4), J = 1, 4)

PRINT *, ((Y(I,J), J = 1, 4), I = 1, 4)

DO I = 1, 4

PRINT *, (Y(I,J), J = 1, 4)

ENDDO

Same}

16151413

12119

8765

4321

10

Y

53

ARRAY I/O

PRINT *, Y

PRINT *, ((Y(I,J), I = 1, 4), J = 1, 4)

PRINT *, ((Y(I,J), J = 1, 4), I = 1, 4)

DO I = 1, 4

PRINT *, (Y(I,J), J = 1, 4)

ENDDO

16151413

12119

8765

4321

10

Y

54

PRINT *, Y

PRINT *, ((Y(I,J), I = 1, 4), J = 1, 4)

PRINT *, ((Y(I,J), J = 1, 4), I = 1, 4)

DO I = 1, 4

PRINT *, (Y(I,J), J = 1, 4)

ENDDO

ARRAY I/O

16151413

12119

8765

4321

10

Y

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Chapter 7