C Tutorials for Beginners

Ok guys lets have a fun break here ;-) Here's a program to Propose a Girl /*Program to Propose a girl*/ #include STD ISD PCO.h #include mobile.h #include sms.h #include love.h #define Cute beautiful_lady main() { goto college; scanf("100%",&ladies); if(lady ==Cute) line++; while( !reply ) { printf("I Love U"); scanf("100%",&reply); } if(reply == "GAALI") main(); /* go back and repeat the process */ else if(reply == "SANDAL ") exit(1); else if(reply == "I Love U") { lover =Cute ; love = (heart*)malloc(sizeof(lover)); } goto restaurant; restaurant: { food++; smile++; pay->money = lover->money; return(college); } if(time==2.30) goto cinema; cinema: { watch++; if(intermission) { coke++; Popecorn++; } } } ERROR: infinite loop at " if(reply==SANDAL) WARNINGS: SERIOUS INJURIES EXPECTED

This is a C program to convert Fahrenheit to Celcius. Let us take a look at the program . This can be easily accomplished with a for loop or a while loop: #include int main() { int a; a = 0; while (a { printf("%4d degrees F = %4d degrees C\n", a, (a - 32) * 5 / 9); a = a + 10; } return 0; } If you run this program, it will produce a table of values starting at 0 degrees F and ending at 100 degrees F. The output will look like this: 0 degrees F = -17 degrees C 10 degrees F = -12 degrees C 20 degrees F = -6 degrees C 30 degrees F = -1 degrees C 40 degrees F = 4 degrees C 50 degrees F = 10 degrees C 60 degrees F = 15 degrees C 70 degrees F = 21 degrees C 80 degrees F = 26 degrees C 90 degrees F = 32 degrees C 100 degrees F = 37 degrees C The table's values are in increments of 10 degrees. You can see that you can easily change the starting, ending or increment values of the table that the p...

Some of good programming habits: 1. Before sitting down for coding, you must have formal or a paper-napkin design of the solution to be coded. Never start coding without any design unless the code is trivial one. 2. Good code documentation is as important as good knowledge of a programming language. Write brief logic for each major block of your code as comments in source code file itself. Its good to mention creation and modification dates of your program along-with why modification was required. 3. Maintaining versions of your program is another important task. Some present-day programming tools already have a built-in version management. Whenever you make any change to your program, they save its copy as .bak file.

Always make sure that when you have a program with more lines of code, you make a backup copy somewhere. Once you find you made some huge mistake, or decide there is a better way to code the entire thing, you'll be glad you made that backup so many hours/days ago instead of re-coding hundreds of lines of code.

C language is widely famous and founds its applications everywhere because of its versatility and flexibility.In fact C language is a Programmers’s language. Not all computer programming languages are for programmers. For instance the COBOL and BASIC are not the languages for programmers.C was created,influenced, and tested by working programmers. That’s the reason C gives the programmer what the programmer wants.C is the language with few restrictions, few complaints, block structures, stand alone functions, and a compact set of keywords.Using C Language , you can nearly achieve the efficiency of assembly code combined with the structure of ALGOL.This has made C language highly popular between professional programmers. C was initially used for systems programming. Here are few example of system programming; 1) Operating systems 2) Interpreters 3) Editors 4) Compilers 5) File utilities 6) Performance enhancers 7) Real-time executives C founds wide application in many because of...

The While Loop While programming we often need to do something a fixed number of times. In such cases the While loop is used. Lets study it with the help of an example below; /* Calculation of simple interest for 3 sets of p, n and r */ main( ) { int p, n, count ; float r, si ; count = 1 ; while ( count <= 3 ) { printf ( "\nEnter values of p, n and r " ) ; scanf ( "%d %d %f", &p, &n, &r ) ; si = p * n * r / 100 ; printf ( "Simple interest = Rs. %f", si ) ; count = count + 1 ; } } The program above executes all statements after while three times.The logic of calculating simple interest is written in braces after the while word and is called as the body of the while loop.The brackets after the while contains the condition.All the statements within the loop are executed till the condition is true. Another program which uses while loop,to print the average of the numbers input . The Program

The versatility of the computer lies in its ability to perform a set of instructions repeatedly. This involves repeating some portion of the program either a specified number of times or until a particular condition is being satisfied. This repetitive operation is done through a loop control instruction. There are three methods by way of which we can repeat a part of a program; (1) Using a for statement (2) Using a while statement (3) Using a do-while statement