1. By Yogesh Neopaney Assistant Professor Department of Computer Science
Array
By Yogesh Neopaney
Assistant Professor
Department of Computer Science

2. An Array is a user-defined data type that stores related information together.
All the information stored in an array belongs to the same data type.

3. Declaration of Arrays 3 things are needed before declaring an array
Data type- The kind of the values it can store, example int, char, float, double.
Name – The name of an array.
Size- The maximum number of values that the array can hold.

4. Syntax for Declaring an array
Data_Type Name [Size];
Example-
Int marks[10];
The array will be stored as shown below:-
1st Element
2nd Element
3rd Element
4th Element
5th Element
6th Element
7th Element
8th Element
9th Element
10th Element

5. Storing Values in an Array
Initialize the Elements during declaration.
Input Values for the elements from the
keyboard.
3. Assign values to Individual

6. Operation on Arrays Traversing an array
Inserting an Element in an array
Searching an element in an array
Deleting an element in an array
Merging two arrays
Sorting an array in ascending or descending order.

7. Advantages and Disadvantages of an array
It is used to represent multiple data items of same type by using only single name.
It can be used to implement other data structures like linked lists, stacks, queues, trees, graphs etc.
2D arrays are used to represent matrices.

8. Disadvantages
We must know in advance that how many elements are to be stored in an array.
Array is static structure. It means that array is of fixed size.
Since array is of fixed size, if we allocate more memory than requirement then the memory space will be wasted and if we allocate less memory than requirement, then it will create problem.

9. Thank You