Detailed difference between structure and array?

Answer 1

1). Structuer is a group of diffrent data type & set of diff. data type element can manupulet by using structuer .It Size is Addition of all Data type size e.g(int,float,char*2+4+1) =7 byte size of structure

2.) Array is Collection of Same data Type Element

it is intege Array , Char Array , ponter Array,Objeact Array etc,

Answer 2

An array typically stores several items of the same data kind. That might also be objects of the same class.

A structure holds data of specific types, that may be different. For example, to describe a person, you might store a name, and an age.

Objects are, in a way, an extension of structures - they also allow storing different types of data, but they have additional capabilities, too.

An array typically stores several items of the same data kind. That might also be objects of the same class.

A structure holds data of specific types, that may be different. For example, to describe a person, you might store a name, and an age.

Objects are, in a way, an extension of structures - they also allow storing different types of data, but they have additional capabilities, too.

An array typically stores several items of the same data kind. That might also be objects of the same class.

A structure holds data of specific types, that may be different. For example, to describe a person, you might store a name, and an age.

Objects are, in a way, an extension of structures - they also allow storing different types of data, but they have additional capabilities, too.

An array typically stores several items of the same data kind. That might also be objects of the same class.

A structure holds data of specific types, that may be different. For example, to describe a person, you might store a name, and an age.

Objects are, in a way, an extension of structures - they also allow storing different types of data, but they have additional capabilities, too.

Answer 3

A Structure is different from an array in the sense that an array represents an aggregate of elements of same type whereas a structure represents an aggregate of elements of (nearly) arbitrary types.

Answer 4

An array is a collection of same typed elements arranged in a list...

int a[200]

... declares and defines an integer array named a with 200 elements. You would reference these as a[0], a[1], ..., a[199].

A structure is a collection of (not necessarily) different types elements arranged in a list...

struct _mystruct

int b;

float c;

double d;

} mystruct;

... declares and defines a structure named mystruct that contains b, c, and d. You would reference these as mystruct.b, mystruct.c, and mystruct.d.

Well, nothing stops you from creating an array of structures...

struct _mystruct myarraystruct[10];

... declares and defines an array of 10 structures, using the previously declared tag _mystruct. You would reference these as myarraystruct[0].b, myarraystruct[5].d, as two examples.

That answers the first part of the question.

Now, you can also have an array within a structure...

struct _mysecondstruct {

int a[100];

float b[200];

} mysecondstruct;

... which declares and defines a structure called mysecondstructure that contains two arrays a, and b. You would refer to these as mysecondstruct.a[10], or mysecondstruct.b[27], for example.

Not asked, but answered for completeness sake, you can also have arrays of structures that have arrays...

struct _mysecondstruct mysecondarraystruct[10];

... which declares and defines an array of 10 structures that each contains two arrays. You would refer to these as mysecondarraystruct[2].mysecondstruct.b[17], for example.

Answer 5

Structures and arrays are somewhat similar in that they both "contain" multiple items of data in one package.

Arrays contain several copies of the same type of data one after another. An array's elements must all be "char", "int", "float", pointers of a single type, structs or any other type.

Structures, on the other hand, contain multiple variables, each with a specific data type. Structures can also contain arrays.

The actual, literal differences between structures and arrays involve understanding addresses and pointers, which may come in handy later on during your foray into more advanced concepts in C.

Answer 6

An array is a contiguous allocation of homogeneous type (the same type).

A structure is a contiguous allocation of heterogeneous types (different types).

Mixing the two gives us the best of both worlds.

For example, suppose we represent a contact as follows:

typedef struct contact_t {

int id;

char* name;

char* address;

char postcode[9];

} contact;

This is a structure of arrays because it has three null-terminated character arrays as members, two of which are variable length (name and address) and one which is fixed-length. We have to use a structure here because int, char* and char[] are heterogeneous types. Note that the number and type of the arrays do not actually matter, so long as there is at least one array member, it is a structure of arrays. Note also that a structure should have two or more members; if there is only one member then you don't need a structure at all, an ordinary variable of the member type would suffice.

When we use a structure we often want to work with a collection of them, and an array of structures is one of the simplest ways to represent them:

contact address_book[1000]; // one-thousand contacts!

Answer 7

An array typically stores several items of the same data kind. That might also be objects of the same class.

A structure holds data of specific types, that may be different. For example, to describe a person, you might store a name, and an age.

Objects are, in a way, an extension of structures - they also allow storing different types of data, but they have additional capabilities, too.

Answer 8

comparison between array of structure and array with in structure.