Defining an array in C

Syntax to define an array in C:

dataType arrayName[ arraySize ];

Example: the definition double a[10] will reserve memory for 10 consecutive double type variables:

Using an array in C

Accessing array elements in C uses the same syntax as Java:

arrayName[ i ] is the i^th element in the array "arrayName"

Example program using an array:

#include <stdio.h> int main( int argc, char *argv[] ) { int A[10], i; for (i = 0; i < 10; i++ ) A[i] = i*i; // Assign a value to A[i] for (i = 0; i < 10; i++ ) printf("%d\n", A[i]); // Using the value in A[i] }

DEMO: demo/C/set1/array1.c