Two dimentional Array

• type name[size1][size2];
• Is a single object of size size1 * size2.
• It is only valid to set individual elements.
• The expression a[x][y] is the same as *(a[x] + y)
• Each a[x] is an array of N elemets from the declaration a[M][N].

• type * name[size1];
• Is a single object, array, of size size1 pointers.
• It is valid to set individual pointers.
• If the pointer is valid, it is valid to set individual elements.
• A pointer can point to 1 or more objects of the specified type.

      int a[3], b[4], c;
      int *parray[3];
  
      parray[0] = &a[1];
      parray[1] = b;
      parray[2] = &c;
  

• type ** name;
• Is a single object the size of a pointer.
• It is valid to set this pointer arbitrarily.
• The object it addresses may be 1 or more pointer subobjects.
• Each pointer subobject may point to 1 or more subsubobject each of the specified type.