The array is a type of data structure that can easily store a collection of elements of the same type. It is used to store a collection of data. In an array instead of declaring a separate variable for each number like number 1, number 2, you can declare only one array variable like numbers and then use it as numbers[0], numbers[1], etc.
Here is a syntax to declare an array in C programming.
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type arrayName [ arraySize ]; |
In the above syntax, the array size must be greater than 0.
for example
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double balance[10]; |
To access array elements watch this example
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double salary = balance[9]; |
Here is a C program to clear your concepts in the array.
Program:
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#include <stdio.h>
int main () {
int n[ 10 ]; /* where n is an array of 10 integers */ int i,j;
/* To initialize an elements of array n to 0 */ for ( i = 0; i < 10; i++ ) { n[ i ] = i + 105; /* TO set an element at location i to i + 100 */ }
/* Print each array element's value as an output */ for (j = 0; j < 10; j++ ) { printf("Element[%d] = %d\n", j, n[j] ); }
return 0; } |
Output:
Element[0] = 105
Element[1] = 106
Element[2] = 107
Element[3] = 108
Element[4] = 109
Element[5] = 110
Element[6] = 111
Element[7] = 112
Element[8] = 113
Element[9] = 114
In C language there are many types of array. Let's know in brief about this array.
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Concept |
Description |
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C usually supports multidimensional arrays. The simplest form of the multidimensional array is the two-dimensional array. |
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You can pass to the function a pointer to an array by adding the array's name without an index. |
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C language allows a function to return an array. |
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You can easily generate a pointer to the first element of an array by simply specifying the array name, without any index. |
C Array Programming examples