# One Dimensional Array Definition In C

- An array which has only one subscript is known as one dimensional Array i.e) int arr10. To Lean more on this C Arrays with Examples. C Arrays are most useful when they have a large number of elements: that is, in cases where it would be completely impractical to have a different name for every storage space in the memory.
- This program describes and demonstrates Single Dimensional Array Example Program in C Programming with sample output,definition,syntax.

One-Dimensional Array or single Dimensional Array is one in which only one-subscript specification is needed to specify a particular element of the array. One dimensional array we can be declared as follows:-**Where**

**data_type**data_type is the type of element to be stored in the array**array_name**array_name specify the name of the array, it may be given any type of name like other simple variables**Expression**its specified the number of values to be stored in the array, arrays also know as subscripted values, the subscript value must be an integer value, therefore the subscript of the array starts from 0 onwards.

lets us see the example if the array declaration looks like follows:

## Example:1

2 4 | where int:data type 10:expression |

therefore, the array will store ten integer values as given above expression, its name is “a”. it can be visualized as shown given below, see and understand carefully.

Dota 2 official website download. Data values are dummy values, you can understand after seeing the output, indexing starts from “0”.

## Example:2

To access fourth element from array **int 'a'[10]**

the fourth element = a[3]; as you can see in the given above output.

therefore, The Subscript for fourth element is 3, because the `lower bound`

of array is “0” (i.e. the array subscript starts from 0). and the `upper bound`

will be 9. hence the size of array can defined as follows:

Let’s calculate the size of array for given example, then array “a” size will be as follows:

2 | =9+1 |

therefore, what is the meaning of the size of an array? size of the array means the number of elements that array can store base types means and type of elements that array stores such as float, integer, character.

let us understand suppose that if the declaration of an array looks like as following:

**float a[10];**

furthermore, total memory in a byte that array would occupy will be given by:

2 4 6 | W=4 Address of element'a'[7]=B+WxJ =4028 |

### C Two Dimensional Array Initialization

The general syntax for declaring a one-dimensional array is. Type arrNamesize; where type could be any built-in type or user-defined types such as structures, arrName is a user-defined identifier, and size is an integer constant. Declaring an array (an array of 10 int variables in this case) is done like this: int array10.