(iv) Switch Statement

Switch statement is an extension of if.......else statement. This permits any number of branches. The syntax is

     

(iii) Nested if....else statement

            This statement is formed by joining if..........else statements either in the if block or in the else block or both. The syntax is

(iii) else.....if statement

else.....if adder statement is used to take multi-way decision. This statement is formed by joining if.......else statements in which each else contains another if......else. The syntax is,

(ii) if....else statement

                        if........else statement is used to execute one group of statements if the test condition is true or other group if the test condition is false. The syntax is

Decision making statements

Decision making statements are used to skip or to execute a group of statements based on the result of some conditions. The decision making statements are,

            (i)         Simple if statement

            (ii)        if.......else statement

            (iii)       nested if

            (iv)       switch statement

(i)         Simple if statement

            The Simple if statement is used to execute or skip one statement or group of statements for a particular condition. The syntax is

                                    if(test condition)

                                                {

                                                            statement block;

                                                }

                                    next statement;

            When this statement is executed, the computer first evaluates the value of the test condition. If the value is true, statement block and next statement are executed sequentially. If the value is false, statement block is skipped and execution starts from next statement.

Conditions

(i)         The opening and closing curl brackets {} are must if the statement block
contains more than one statement.

(ii)        The brackets around the test condition are must

(iii)       The test condition must be relational or logical expression

(iv)       Statement block is called body of the if statement and it contains one or
more statement blocks.

#include<stdio.h>

            main( )

            {

                        int salary;

                        char good;

                        scanf (“%d %c”, &salary,&performance);

                        if (performance= =‘good’

                                    {

                                                salary=salary+1000;

                                    }

                                    printf(“%d”, salary)’

                        }

            This program tests the performance of an employee. If the performance of an employee in an organization is good, then Rs.1000/-  will be added to his salary. For other grades no incentives are added.

C Programming- Assignment Operators

Assignment operators are operators, which are used to simplify the coding of certain type of assignment statement. The syntax is

                                    variable operator = expression

where,

            variable            -           valid user defined name

operator           -           + - * / %

expression        -           constant (s)or a variable(s) or operator(s)

Example

            The table given below lists the operators with example.

Operator	Meaning
+=	value of LHS variable will be added to the RHS value and is assigned to LHS variable.
-=	RHS value will be subtracted from LHS variable and is assigned to LHS variable.
*=	value of LHS variable will be multiplied by the RHS value and is assigned to LHS variable.
/=	value of LHS variable will be divided by the RHS value and is assigned to LHS variable.
%=	value of LHS variable will be divided by RHS value and the remainder will be stored in the LHS variable.

Data Types

Dear students,
I think we are too much concentrating on our practical classes, than that of our theory. Even though, practicals are more important than that of mugging up some text and vomiting it on a piece of paper; we cannot proceed further with programs if we are not convenient in its usage.
Hence, Let us spare time for theoretical discussions also.
Objectives:
In this lesson let us discuss about :
1.declare (name) a local variable as being one of C's five data types
2.initialise local variables
3.perform simple arithemtic using local variables

HTML Tags / Codes / Web Page Design

HTML Tags / Codes / Web Page Design Dear Students,           Today let us learn how to design your own web site and write your own HTML code (hypertext markup language) will play a major role in your success. Not only will learning HTML coding provide you with the freedom to update your own HTML documents, but it will also save you a great deal of money, as you will be able to avoid hiring a professional web designer, for your office / company in your professional career. However, before reviewing the HTML tags,  the following section will assist you in creating an HTML web page.

GURU NANAK DEV CO-ED POLYTECHNIC

ROHINI, SECTOR -15, DELHI-85

Phone no. : 011-27860308/27567819

e-mail : gndpoly.delhi@nic.in

The G N D Polytechnic started in 1995 at Pusa Polytechnic Campus. It shifted in its new campus at Sector-15, Rohini in 1997 and was inaugurated by then Chief Minister. The institution has been named after the first Sikh Guru, Guru Nanak Dev.The institution runs in two shifts namely morning and evening. The Morning shift beings at 7.30 a.m. and continues till 3.30 p.m. The evening shift runs from 12.30 p.m. to 8.30 p.m. At present, there are six branches in the morning shift and five in the evening shift with 60 students in each branch.

Principal : Mr. Anil Kumar Choudhary : He is a man of multifaceted personality, academician, scholor, disciplinarian, highly capable, boldly decisive and well versed with administrative work. He graduated in Civil Engg. From Visvesvaraya Regional College of Engineering (now VNIT) Nagpur with first division. With distinctive marks, he post graduated from S.G.S.I.T., Indore in Transportation Engg. He has authored a couple of books on applied Mechanics, Environmental Engg., Hydraulics and Fluid Mechanics. He is stern, strict and brooks no indiscipline. Yet he is endowned with humble and human qualities.

Vice Principal : Dr. R. D. Sharma : He is a mathematician wizard who has penned down a wide range of books which sell like hot cakes among students from sixth standard to post graduate level. He is man of few but very effective words. He stands non pareil (unique) in the department of Science and Humanities. Not only this, he is also a recipient of several awards for his dedication, contribution and perseverance in the field of mathematics.

Click here To Download Dev C / C++ compiler

C - PROGRAM :- LESSON 02

DECLARATION STATEMENT

1. #include <stdio.h>
/*this is a library in the C compiler which is the software where you run the programs.*/
2. int main()
/*this is the main function of the program, the body of the program will be inside this function.*/

3. { int x, y, z;
/*this is the declaration of variables of type integer*/

4.printf("Enter two numbers to multiply(enter a space between numbers): );
/*printf('''); is a function in the compiler which outputs what's in between the " " to the monitor*/

5. scanf("%d%d", &x, &y);
/*scanf(""); is another function except this one inputs what's in between the " " and stores it into the variable for this example x and y*/

6. z = x * y;
/*the = sign is an assignment to the left, so it assigns the product of x and y to the variable z*/

7. printf("The product is : %d", z);

8. return 0;
/*this code is what tells the compiler that you are terminating the program it returns 0 to the operating system*/

9. }
/* this is the closing bracket just like in a math funtion*/

5th SEM MECHANICAL & 3rd SEM ECE

OVERVIEW OF C

Elements of C language
C is an efficient and portable general purpose programming language. It was developed in the year 1972 at Bell Telephone Laboratories (AT&T) by Dennis Ritchie. The name C was taken from the second letter of the earlier version BCPL Basic Combined Programming Language developed by Ken Thompson of Bell Laboratories.

Until 1978 C was restricted within Bell laboratories. But after publication of definite description of the language by Brain Kernighan and Ritchie the language began to promote.

Features of C-language
(i) It is a flexible high level structured programming language.
(ii) It includes the features of low level language like assembly language.
(iii) It is portable. A program written for one type of computer can be used in any
other type.
(iv) It is much faster and efficient.
(v) It has an ability to extend itself.
(vi) It has a number of built-in functions, which makes the programming task
simple.

C-PROGRAMMING for Electronics & Comm. Students

MY FIRST PROGRAM IN "C"

PROGRAM-01

AIM:-To write a simple program in "C" to explain the functions of 'printf & getchar' commands

PROGRAM:

/* My First Program in 'C'*/

#include <stdio.h>

main()
{

printf("HELLO WORLD");

getchar();

}





OUTPUT:- HELLO WORLD


RESULT:- Thus a simple program in 'C is written & executed

NOTICE TO THE THIRD SEMESTER ELECTRONICS & COMMUNICATION STUDENTS

NOW YOU CAN DOWNLOAD YOUR COMPUTER PROGRAMMING AND APPLICATIONS FULL LECTURE MATERIAL FROM HERE.

CURRICULUM FOR DIPLOMA PROGRAMME

IN ELECTRICAL ENGINEERING