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C (C17 + GNU extensions)

	1	#include <stdio.h>
	2
	3	int main() {
	4	int x[] = {10, 20, 30};
	5	int* p = &x[1]; // pointer into middle
	6	char* fruit[3] = {"apples",
	7	"bananas",
	8	"cherries"};
	9
	10	printf("I have %d %s\n", *p, fruit[1]);
	11	return 0;
	12	}

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Stack

main

array

0	1	2
int 10	int 20	int 30

pointer to int

fruit

array

0	1	2
pointer to char	pointer to char	pointer to char

Heap

array

0	1	2	3	4	5	6
char 'a'	char 'p'	char 'p'	char 'l'	char 'e'	char 's'	char '\0'

(this is in read-only storage, not the heap)

array

0	1	2	3	4	5	6	7
char 'b'	char 'a'	char 'n'	char 'a'	char 'n'	char 'a'	char 's'	char '\0'

(this is in read-only storage, not the heap)

array

0	1	2	3	4	5	6	7	8
char 'c'	char 'h'	char 'e'	char 'r'	char 'r'	char 'i'	char 'e'	char 's'	char '\0'

(this is in read-only storage, not the heap)

C/C++ details:

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#include <stdio.h>
int main(void) {
  int i = 42;
  printf("Wert von i (i) = %d\n", i);
  printf("Adresse von i (&i) = %p\n", &i);
  
  int *p = &i;  // Pointer p zeigt auf i
  printf("Wert von p = Adresse von i (p) = %p\n", p);
  printf("Wert, auf den p zeigt = Wert von i (*p) = %d\n", *p);
  
  *p = 7; // i verändert sich...
  printf("i = %d\n", i);
  
  int *p2 = p;
  *p2 = 100; // i verändert sich...
  printf("i = %d\n", i);
}
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