One Dimensional array

Introduction Generations of Computers Classification of Computers Basic Anatomy of a Computer System Memory Management Computer Software Operating System

Algorithm Flowcharts

Programming Language Generations of Programming Languages Introduction to C Structure of C Programming Language Integrated Development Environment First C program, Hello World Executing a C Program Constants in C Variables in C C Storage Classes and Storage Class Specifiers

Introduction Arithmetic operators Relational Operators Logical Operators Assignment Operator Increment and Decrement Operators Conditional Operators Bitwise Operators Precedence and Associativity

Control Instructions in C if Statement in C if-else Statement Nested if-else statement else if ladder Switch Statements in C

Loops Introduction for Loop while loop in C do-while Loop break and continue statements

Array in C One Dimensional array Two Dimensional Array Multidimensional Arrays

Modular Programming Functions

Searching Techniques Linear Search Algorithm Binary-Search-Algorithm

Sorting Introduction Bubble Sort

What is Strings Standard Library String Functions

Structure Introduction Defining a Structure Declaration of Structure Example of Structure Union Introduction Defining a Union Accessing Union Members

Pointers in C Accessing the Address of a variable Pointer Operations

Dynamic Memory Allocation

A list of items can be given on a variable name using only one subscript and such a variable is called a one subscript variable or a one-dimensional array.

- A one-dimensional array or Single-Dimensional array is used to represent and store data in a linear form.
- An array having only one subscript variable is called a One-Dimensional array
- It is also called a Single Dimensional Array or Linear Array.

Example :

If we want to represent a set of five numbers, ( 25,30,35,40,45) by an array variable number,

syntax:

data-type arrayName [ arrays ];

int number [5];

and the computer reserve five memory location as shown below:

The values to the array elements can be assigned as follows:

number[0]=25;
number[1]=30;
number[2]=35;
number[3]=40;
number[4]=45;

This would cause the array number to store the values as shown below

Declaring Arrays

In C, a programmer declares an array by specifying the type of elements and the number of elements required by the array, as seen below.

data-type arrayName [ arraySize ];

The array size must be an integer constant greater than zero and the type can be any valid C data type.

For example, to declare a 10-element array called percentage of type double, use this statement –

double percentage[10];

Here percentage is a variable array that is sufficient to hold up to 10 double numbers.

Initializing Arrays:

After an array is declared, its elements must be initialized. Otherwise, they will contain “garbage”.

Syntax:

type arrayName [ arraySize ]={list of values};

You can initialize an array in C either one by one or using a single statement as follows −

double percentage [5] = {2000.0, 3.0, 4.4, 8.0, 6.0};

The number of values between braces { } cannot be larger than the number of elements that we declare for the array between square brackets [ ].

Fundamentals of the Computer System

Introduction to Algorithm

Programming Basics

Operators in C

Conditional Branching

Iteration and Loops

Array in C

Functions in C

Searching Algorithms

Sorting Algorithms

Strings

Structures and Union

Pointers in C

File Handling in C

Advanced