Examples of DATA declarations:

a) INT a;
An integer

b) int *a;
A pointer to an integer

C) int **a;
A pointer to a pointer to an integer

d) int a[10];
An array of 10 INTEGERS

e) int *a[10];
An array of 10 pointers to integers

f) int (*a)[10];
A pointer to an array of 10 integers

g) int (*a)(int);
A pointer to a function a that TAKES an integer argument and returns an integer

h) int (*a[10])(int);
An array of 10 pointers to functions that take an integer argument and return an integer

Examples of data declarations:

a) int a;
An integer

b) int *a;
A pointer to an integer

c) int **a;
A pointer to a pointer to an integer

d) int a[10];
An array of 10 integers

e) int *a[10];
An array of 10 pointers to integers

f) int (*a)[10];
A pointer to an array of 10 integers

g) int (*a)(int);
A pointer to a function a that takes an integer argument and returns an integer

h) int (*a[10])(int);
An array of 10 pointers to functions that take an integer argument and return an integer