An Array is a collection of homogeneous items, i.e. it stores data elements having sane data type. It stores elements in contiguous memory locations.
A specific element can be accessed by an index.
| element[0] | element[1] | element[2] | element[4] | element[5] |
Here element[0] is the first element and element[5] is the last element.
Declaring Array
In C programming we can declare a single dimensional array as follows-
| type array_name [ array_size ]; |
Note- array_size must be a positive integer greater than zero.
Example-
| Int rollno[20]; |
Here rollno is a variable array that can hold 20 integer numbers.
Initializing Array
| Int rollno[5] = {1, 2, 3, 4, 5 }; |
As we have specified the array limit as 5 enclosed in [ ], we can only have 5 elements in the array i.e. in { }.
If we keep the [ ] empty, it can hold a large number of elements.
| Int rollno[ ] = {1, 2, 3}; |
We can also initialize a single element at a time.
| Int rollno[2] = 4; |
Example of an Array in C –
Output –
also see
| C Programming language |
Go Programming language |
| Linked List | Array |
| Stack | Queue |
| Puzzle | Reasoning |
| Aptitude | HTML |
