C Array in C Language

Categories: C language

An array is defined as the collection of similar type of data items stored at contiguous memory locations. Arrays are the derived data type in C programming language which can store the primitive type of data such as int, char, double, float, etc. It also has the capability to store the collection of derived data types, such as pointers, structure, etc. The array is the simplest data structure where each data element can be randomly accessed by using its index number.

C array is beneficial if you have to store similar elements. For example, if we want to store the marks of a student in 6 subjects, then we don't need to define different variables for the marks in the different subject. Instead of that, we can define an array which can store the marks in each subject at the contiguous memory locations.

Properties of Array

 The array contains the following properties.

1. Each element of an array is of same data type and carries the same size, i.e., int = 4 bytes.

2. Elements of the array are stored at contiguous memory locations where the first element is stored at the smallest memory location.

3. Elements of the array can be randomly accessed since we can calculate the address of each element of the array with the given base address and the size of the data element.


Advantage of C Array

1) Code Optimization: Less code to the access the data.

2) Ease of traversing: By using the for loop, we can retrieve the elements of an array easily.

3) Ease of sorting: To sort the elements of the array, we need a few lines of code only.

4) Random Access: We can access any element randomly using the array.


Disadvantage of C Array

1) Fixed Size: Whatever size, we define at the time of declaration of the array, we can't exceed the limit. So, it doesn't grow the size dynamically like LinkedList which we will learn later.


Declaration of C Array

We can declare an array in the c language in the following way.

data_type array_name[array_size];  

Now, let us see the example to declare the array.

int marks[5];  

Here, int is the data_type, marks are the array_name, and 5 is the array_size.


Initialization of C Array

The simplest way to initialize an array is by using the index of each element. We can initialize each element of the array by using the index. Consider the following example.


marks[0]=80;//initialization of array  

marks[1]=60;  

marks[2]=70;  

marks[3]=85;  

marks[4]=75;  

Top Blogs
Passing structure to function in C Language Published at:- Program in C Language with Practical Published at:- Difference between the typedef and the #define in C Published at:- Use of typedef keyword in Structure C Language Published at:- Difference between typedef and define in C Published at:- Function Calling in C Language Published at:- What is the function call in C Language Published at:- What is getch() in C Language Published at:- Enum in C Language Published at:- Differences between Low-Level language and High-Level language Published at:- Differences between Machine-Level language and Assembly language Published at:- What is a programming language in C Language Published at:- Flow of C Program in C Language Published at:- Data Segments in C Language Published at:- Program Structure with “Hello World” Example Published at:- The C Compiler work in C language and its important Published at:- Inception Of C Language Tutorial for Beginners Published at:- C Expressions in C Language Published at:- Command Line Arguments in C Language Published at:- C #pragma in C Language Published at:- C #error in C Language Published at:- C #else in C Language Published at:- C #if in C Language Published at:- C #ifndef in C Language Published at:- C #ifdef in C Language Published at:- C #undef in C Language Published at:- C #define in C Language Published at:- C #include in C Language Published at:- C Predefined Macros in C Language Published at:- C Preprocessor Directives in C Language Published at:- C ftell() function in C Language Published at:- C rewind() function in Language Published at:- C fseek() function in C Language Published at:- C fputs() and fgets() in C Language Published at:- C fputc() and fgetc() in C Language Published at:- C fprintf() and fscanf() in C Language Published at:- File Handling in C Language Published at:- Deciding the size of the union in C Language Published at:- Union in C Language Published at:- Changing order of the variables In C Language Published at:- Why structure padding in C Language Published at:- Structure Padding in C Language Published at:- Types of Nested Structure in C Language Published at:- Nested Structure in C Language Published at:- C Array of Structures Published at:- typedef in C Language Published at:- What is Structure in C Language Published at:- C Structure in C Language Published at:- C Math in C Language Published at:- C String Functions in C Language Published at:- C gets() and puts() functions in C Language Published at:- Pointers with strings in C Language Published at:- Accepting string as the input in C Language Published at:- Traversing String in C Language Published at:- C Strings In C Language Published at:- Dynamic memory allocation in C Language Published at:- Function pointer as argument in C Language Published at:- C Function Pointer in C Language Published at:- What is a Null Pointer in C Language Published at:- C dereference pointer in C Language Published at:- Advantages of void pointer in C Language Published at:- void pointer in C Language Published at:- Pointer to Constant In C Language Published at:- const Pointer in C Language Published at:- sizeof() operator in C Language Published at:- Dangling Pointers in C Language Published at:- Pointer to function in C Language Published at:- Pointer Arithmetic in C Language Published at:- C Double Pointer (Pointer to Pointer) in C Language Published at:- Pointer Arithmetic in C Language Published at:- C Double Pointer (Pointer to Pointer) Published at:- C Pointers in C Language Published at:- Passing Array to Function in C Published at:- What is an Array in C Language Published at:- Two Dimensional Array in C Language Published at:- C Array in C Language Published at:- Storage Classes in C Published at:- Recursive Function In C Language Published at:- Recursion in C Language Published at:- Call by value and Call by reference in C Language Published at:- Types of Functions in C Language Published at:- C Functions Published at:- C goto statement in C Language Published at:- C continue statement in C Language Published at:- C break statement in C Language Published at:- Nested Loops in C Language Published at:- Nested Loops in C Language Published at:- for loop in C Language Published at:- Properties of while loop in C Language Published at:- while loop in C Language Published at:- do while loop in C Published at:- C Loops of C Language Published at:- Difference Between if-else and switch Published at:- C Switch Statement In C Language Published at:- The C Language in the C Control Statement Published at:- What is the 2s complement in C Published at:- Meaning of Bitwise Operator in C Language Published at:- Conditional Operator in C Language Published at:- Differences Between Compile-Time and Runtime In C Language Published at:- Compile time vs Runtime In C language Published at:- Programming Errors in C Language Published at:- Difference in C language Term Published at:- Static in C Language Published at:- Boolean with Logical Operators in C language Published at:- C Boolean in C language Published at:- Operators in C Language Published at:- Tokens in C language Published at:- Constants in C Published at:- What is ASCII code? Published at:- Escape Sequence in C Published at:- C Format Specifier in C Language Published at:- C Operators in c Language Published at:- C Identifiers Published at:- Data Types in C Published at:- Types of Variables in C Language Published at:- Variables in C Language Published at:- printf() and scanf() in C Published at:- Compilation process in c Published at:- How to install C Language Published at:- Features of C Language Published at:- History of C Language Published at:- Definition of C Language Published at:- Introduction to Implementation of Queue using Linked List Published at:- Input and Output Functions in C Published at:- C Character Set Published at:- Importance of C Programming Language Published at:- How does C Programming Language Work Published at:- History of C Language : Introduction to C Programming Language Published at:- Benefits of C language over other programming languages Published at:- C Language Interview Question and Answers Published at:-
R4Rin Team
The content on R4Rin.com website is created by expert teams.