Example to print array in C

Program example to print array in C. Two simple examples will be demonstrated for printing array element in C programs i.e. in forward and reverse direction both using for loop.

• Create an int array.
• Run for loop from index 0 to less than array length. e.g if array length is 5 then loop will run from 0 to 4 index.
• Retrieve array element using expression arr[index], where arr is your array name and index you have declared to retrieve elements.

Program to print array in C

/*
* Example to print array in C
*/

#include<stdio.h>

int main(){

	int len  = 0;//for length of array
	int index =0;//to fetch array elements
	int arr[5] = {2,4,6,8,9};

	//find length of the array or hard code with 5
	len = sizeof(arr)/sizeof(int);

	//Run the for loop from index 0 to 4,
	//to get all 5 elements

	for(index =0; index < len; ++index){
		//fetch element using arr[index] statement
		printf("%d ",arr[index]);
	}

	return 0;
}

Output:
2 4 6 8 9

C program to print array in reverse order

Printing array elements in reverse order is also easy.Here are steps.

• Initialize index to length of the array – 1 ( point to last index and move back up to start of the array location). loop we want to run for index 4 to 0, hence, set index  to array length-1, if array length is 5.
• Check the condition in for loop for index >= 0, and decrement the index in for loop.
• Retrieve array elements using arr[index] statement.

Source code to print array in c in reverse order

/*
* Example to print array in C
*/

#include<stdio.h>

int main(){

	int len  = 0;
	int index =0;
	int arr[5] = {2,4,6,8,9};
	
	len = sizeof(arr)/sizeof(int);

	//Run the for loop from last index 4 to 0,
	//to get all 5 elements in reverse order

	for(index =len-1; index >= 0; --index){
		
		printf("%d ",arr[index]);
	}

	return 0;
}

Output:
9 8 6 4 2