C Programming Step by Step - Complete Tutorial For Beginners

Learn the difference between a compiler and an IDE, how IDEs enable one-click compilation and error highlighting for C programs, and recommended options for Mac and Windows.

Set up gcc on Windows by adding the gw bin path to the system PATH, then compile hello.c with gcc and run the resulting executable.

Learn arithmetical operators in c: plus, minus, asterisk, slash, and modulus, covering binary use, unary cases, and a sample program with a=10 and b=2 results.

Learn how to flush the input buffer when taking a character after integers in C by prefixing a space before %c in scanf to clear the buffer.

Explore unary increment and decrement operators in C, including pre and post forms, and see how A++ and A-- affect values and assignment order in expressions.

Explore short-circuit evaluation for and and or operations, showing left-to-right evaluation, how ++ increments affect A, B, and C, and when operands are skipped.

Learn how to use if-else statements to branch logic in C, compare two numbers to find a maximum, and check if an age is teenage (13–19).

Demonstrate tax calculation using an if-else-if ladder on income ranges, printing the tax; ranges include under 10,000 (0%), 10,000-20,000 (10%), 20,000-50,000 (20%), and 50,000+ (25% plus 10% of tax).

Explore how if and else blocks work in C, including when to omit else, the impact of a trailing semicolon, and common compilation errors.

Predict the output of C's while loop examples, noting non-zero is true, infinite looping, and how printf returns three for 'Hi' plus newline, printing alternating 'Hi' and 'Hello'.

Master breaking and continuing loops in C using break to terminate a loop early and continue to skip iterations, with a practical for loop example that prompts user to continue.

Learn how the continue keyword controls loop flow in C by skipping rest of an iteration and moving to the next, for, while, and do-while loops to print odd numbers.

Learn how a one dimensional array stores multiple integers contiguously in memory, access elements with the subscription operator and indices, and initialize or print them using a for loop.

Allocate a dynamic array at runtime with a user-specified size in c. Read values with a for loop and scanf, then print each element with its index.

Read n, seed with system time, fill a one-dimensional array with random numbers 0-99, then compute the sum and the average.

Learn to store strings in C with one-dimensional character arrays, rely on the terminating null terminator, print with printf and %s, and copy with strcpy using string.h.

Learn to determine a string's length by locating the null terminator in a character array, using a loop or the strlen function from string.h.

Learn how to perform string operations in c with the string.h library, including copying with strcpy, concatenating with strcat, and comparing with strcmp, illustrated through practical examples and lexicographical ordering.

Master modular problem solving in C by writing and using user defined functions, with parameters and return values, illustrated through a simple interest example.

Learn to declare a function with a prototype before use and why the compiler needs its return type. Include header files, like stdio.h, to access library declarations such as printf.

Build and distribute a reusable C library by compiling area and my_math functions into libxutils.a, expose them via headers, and use them from a client program.

Develop and test four C character utilities: is_lowercase, is_uppercase, to_uppercase, and to_lowercase, with prototypes and alphabetic checks. Validate with examples showing conversions between cases for lowercase and uppercase letters.

Analyze when recursion is preferable to iteration by using the system stack instead of an explicit stack, illustrated with converting decimal numbers to binary.

Learn to implement the Tower of Hanoi in C using recursion, including base case, recursive calls, and printing moves from source to destination via an auxiliary peg.

Define a recursive function to return nth Fibonacci term with base cases 1 and 2. It sums previous terms and prints the first ten terms using a long return type.