ARRAY

Array is a bunch of similar data that is stored into the variable with the same name, by giving the index in the variable to distinguish from each other.

ARRAY VARIABLES

nama_variabel [index]

provision arrray variable name the same as regular variable names.

index indicates the number of variables.

ARRAY VARIABLE DECLARATION

BU,: type nama_variabel [index];

Example: float bil [10];

array variable declaration with a name that will accommodate 10 bil of data type float. 10 shows the variable bil Index consists of 10 elements, where each element will contain a data.

Array index starts from zero (0), while the number usually starts from a single element (1). Number elements can be made equal to the index numbers to facilitate the manufacture of a program that is by giving the index one more than the amount of data needed, thus becomes:

Float bil [11th]

Initialization DIMENSIONAL ARRAY 1

Initialization can be done in conjunction with or separate declarations. Initialization of an array is to put the array elements between curly braces {}, between elements that are separated from one another comma.

int bil [two] = {4,1,8}

bil Comments [0] = 4

bil [1] = 1

car [two] = 8

AUTOMATIC ARRAY is the array initialization is done in a particular function. Only ANSI-standard C compiler C can initialize automatic arrays.

How to initialize an array of compilers that do not follow the ANSI standard C:

1. Initialized outside the function as a variable GLOBAL / EXTERNAL ARRAY.

int bil [2] = {0,0,0};

main ()

2. Function as a variable is initialized didlm LOCAL / ARRAY STATIC.

main ()

{

static int bil [2] = {0,0,0};

… … …

In automatic array is not initialized, the array would have a value that does not irregular. When global & static array is not initialized then all array elements are automatically given a value of zero (0).

DEFINING THE NUMBER OF ELEMENTS IN ARRAY VARIABLES

The size of the index variable can be determined using

# define preprocessor directive

# Define N 40

main ()

{

int number [N], salary [N], goal [N], status [N], Juman [N];

When Besari index will be changed to 50, simply replaced by

Define N 50 #

2 DIMENSION ARRAY

nama_variabel [indeks1] [indeks2]

indeks1: number / line number

indeks2: number / column number

Number of elements owned by 2-D array can be determined by multiplying indeks1 * indeks2

eg: array A [2] [3] will have a 2 * 3 = 6 elements.

STRING and ARRAY

1. In there is a character string null () at the end of the string

2. Strings are definitely an array, the array is not necessarily a string