Arrays In C Programming Explained
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The document provides an overview of arrays in C, covering their definition as homogeneous collections of elements of the same data type stored in contiguous memory. It discusses array declaration syntax, initialization with examples, and methods for accessing elements by index. Additionally, it describes different types of arrays, including one-dimensional, two-dimensional, and multi-dimensional arrays.
![Syntax:
datatype array_name[array_size]
Example:
int a[5]
Array index
a[0]
a[1]
a[2]
a[3]
a[4]
Array Declaration in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-6-320.jpg)
![Syntax:
datatype array_name [array_size]
Example:
int a[5]
a[0] a[1] a[2] a[3] a[4]
Array Declaration in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-7-320.jpg)
![Array element
10
15
20
25
30
Syntax:
datatype array_name [array_size]={element1, element2, element3,….etc.};
Example:
int a[5]={10, 15, 20, 25, 30};
a[0] a[1] a[2] a[3] a[4]
a[0] =
a[1] =
a[2] =
a[3] =
a[4] =
Array Initialization in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-9-320.jpg)
![Syntax:
datatype array_name [array_size]={element1, element2, element3,….etc.};
Example:
int a[5]={10, 15, 20, 25, 30};
a[0] a[1] a[2] a[3] a[4]
10 15 20 25 30
Array Initialization in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-10-320.jpg)
![Syntax:
array_name[array_index]
a[0] a[1] a[2] a[3] a[4]
10 15 20 25 30
In C, Array elements can be randomly accessed by specifying the array index
Access Array Element in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-12-320.jpg)
![a[1] a[2] a[3]
A Linear array contains one subscript in the declaration. The elements of the one-dimensional array are
stored in the consecutive memory location.
2000 2001 2002
Syntax:
datatype array_name[size];
int a 15
Types of Arrays in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-15-320.jpg)
![A 2D array is similar to a 1D array, but it accepts two subscripts in the declaration. Which means it
consists of rows and columns to store information.
Syntax:
datatype array_name[R_size][C_size];
int a 2
a[0][0] a[0][1] a[0][2]
a[1][0] a[1][1] a[1][2]
3
Types of Arrays in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-16-320.jpg)
![A 3D array is a multi-dimensional array accept three subscripts. Which is represented by the block size,
row size and column size.
Syntax:
datatype array_name[B_size][R_size][c_size];
int a 2 3 4
Types of Arrays in C](https://image.slidesharecdn.com/arraysinc1-230111102337-be26185f/85/Arrays-In-C-Programming-Explained-17-320.jpg)
Arrays In C Programming Explained
- 2. • What Is an Array in C • Array Declaration in C • Array Initialization in C • Access Array Elements in C • Types of Arrays in C Agenda
- 3. What Is an Array in C
- 4. Element 1 Element 2 ……… Element n First element Last element 2000 n …… 2001 An array is a homogeneous collection of elements of the same data type. Elements of an array are stored in a contiguous block of memory What Is an Array in C?
- 5. Array Declaration in C
- 6. Syntax: datatype array_name[array_size] Example: int a[5] Array index a[0] a[1] a[2] a[3] a[4] Array Declaration in C
- 7. Syntax: datatype array_name [array_size] Example: int a[5] a[0] a[1] a[2] a[3] a[4] Array Declaration in C
- 9. Array element 10 15 20 25 30 Syntax: datatype array_name [array_size]={element1, element2, element3,….etc.}; Example: int a[5]={10, 15, 20, 25, 30}; a[0] a[1] a[2] a[3] a[4] a[0] = a[1] = a[2] = a[3] = a[4] = Array Initialization in C
- 10. Syntax: datatype array_name [array_size]={element1, element2, element3,….etc.}; Example: int a[5]={10, 15, 20, 25, 30}; a[0] a[1] a[2] a[3] a[4] 10 15 20 25 30 Array Initialization in C
- 11. Access Array Elements in C
- 12. Syntax: array_name[array_index] a[0] a[1] a[2] a[3] a[4] 10 15 20 25 30 In C, Array elements can be randomly accessed by specifying the array index Access Array Element in C
- 13. Types of Arrays in C
- 14. Two-dimensional array Multi-dimensional array One dimensional array Types of Arrays in C
- 15. a[1] a[2] a[3] A Linear array contains one subscript in the declaration. The elements of the one-dimensional array are stored in the consecutive memory location. 2000 2001 2002 Syntax: datatype array_name[size]; int a 15 Types of Arrays in C
- 16. A 2D array is similar to a 1D array, but it accepts two subscripts in the declaration. Which means it consists of rows and columns to store information. Syntax: datatype array_name[R_size][C_size]; int a 2 a[0][0] a[0][1] a[0][2] a[1][0] a[1][1] a[1][2] 3 Types of Arrays in C
- 17. A 3D array is a multi-dimensional array accept three subscripts. Which is represented by the block size, row size and column size. Syntax: datatype array_name[B_size][R_size][c_size]; int a 2 3 4 Types of Arrays in C