Introduction:
- Applications are used to store and process the information
- We store information using variables and process using functions.
- We use different types of variables to store the information as follows.
Primitive variable: stores only one value at a time.
- int a = 10;
Array variable: stores more than one value but of same type.
- int arr[5] = {10, 20, 30, 40, 50};
Structure variable: stores more than one value of different data types. We define structures using struct keyword.
| struct Employee { int id; char name[20]; float salary; }; struct Employee e = {101, “Amar”, 35000}; |
Array of Structures: used to store more than one record details.
| struct Employee{ int id; char name[20]; float salary; }; struct Employee arr[3]; |
Memory representation:
Note: Structure is a data type and memory allocate to structure only when we create variable
| Structure (Data type) | Memory allocation (create variable) |
| struct Employee { int id; char name[20]; float salary; }; | struct Employee e; |