About Array

Often in programming we need to store values of similar data type, to do so we might require multiple variable declarations and that would be tedious to deal with. 
To ease this task, we can take help of Arrays.

• An Array is a collection of similar type of values or similar Data Types.
• Data is stored in continuous memory locations.
• These values can be referred by single variable and the index number (position number).
• The index number always starts with ZERO.
• To access the elements of array we use FOR loop.

In C Language we have:

•     Single Dimentional Array
• <datatype>  <varName>[<size>];
•     Multi Dimentional Array
• <datatype>  <varName>[<size>][<size>]...; 

Limitations:

• Size or count of values must be known in prior.
• Arrays are not resizable
• This leads to memory wastage if requirement is less than the size 

Array based on Data Type: 

• Character Array: When we need to store more than one character or string we have use 'char' type array. These arrays have a terminating called 'null' character represented as '\0'. We can create a character array in following ways:

                    A)  Declaration of Array:
                        char Arr1[20];
                        initialization of array:
                        Arr1[0] = 'a';    Arr1[1] = 'b';
                        Arr1[2] = 'c';    Arr1[3] = 'd';
                        Arr1[4] = 'e';    Arr1[5] = 'f';
                        Arr1[6] = '\0';

                    B)  Declaration and Initialization(array initializer):
                        char Arr2[]={'a','b','c','d','e','f','\0'};

                    B)  Declaration and Initialization(string initializer):
                        char Arr3[]="Vilas";

                    D) Declaration and then accepting string from user:
                        char Arr3[20];
                        scanf("%s", arr3);  //don't use '&' before 'arr3'

• Integer Array : These arrays don't have terminator character. The last element (value) of the array would have index number as SIZE -1. Ways to create 'int' type array:

           A)  Declaration of Array:
                    int arr1[6];
                    initialization of array:
                    arr1[0] = 11;    arr1[1] = 22;
                    arr1[2] = 33;    arr1[3] = 5;
                    arr1[4] = 65;    arr1[5] = 8;

           B)  Declaration and Initialization(Array initializer):
                   int arr2[]={10, 20, 30, 40, 50, 60};

           C) Declaration and then accepting numbers from user:
                   int arr3[5];
                   int i;
                   for(i=0; i<5; i++)
                        scanf("%d", &arr3[i]);

            *** Same is for 'float' and 'double'

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Advantages of C Programming

1. As C Programming is a middle level language, it includes the features of both high level and low level languages.
2. It can be used for low-level programming, such as scripting for drivers and kernels and it also supports functions of high level programming languages.
3. C is a structured programming language which allows a complex program to be broken into simpler programs called functions. It also allows free movement of data across these functions.
4. C language is case-sensitive.
5. C is highly portable and is used for system programming application which form a major part of Windows, UNIX and Linux operating system.
6. C is a general purpose programming language and can efficiently work on enterprise applications, games, graphics, and applications requiring calculations.
7. C language has a rich library which provides a number of built-in functions. It also offers dynamic memory allocation.

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Print the Pyramid using C Programming

Dear friends here you will understand how to print the Pyramid in C Programming. Diagram shown below is designed as per the logic we want to thing before writing the program and then which code we have to use and where we have to place the code.

If any one want more explanation please write a in comment box.

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