C – Program Structure1 min read

Before we start the basic building blocks of the C programming language, we must know the Program Structure of C for the building of programs.

A C program basically consists of the following parts:

  • Preprocessor Commands.
  • Functions.
  • Variables.
  • Statement & Expressions.
  • Comments.

Let see the basic structure below to print Hello World:

Now, let’s know the various parts of the above example:

  1. #include <stdio.h> is a preprocessor command, the first line of the program that adds the stdio.h file before the program compilations.
  2. Next is int main() which is the main function where the program execution begins.
  3. /*...*/ or // is a comment box that will not be executed by the compiler.
  4. printf(...)is a function in C that displays the message “Hello, World!” on the screen. The message needs to be under " ".
  5. return 0; in a program terminates the main() function and returns the value 0.

MORE

String Pattern Programs in C

In this tutorial, we will write various C pattern programs for String. Before that, you may go through the following topics in C. for loop …
Read More

Java Program to Find pair of Integers in Array whose sum is given Number

In this tutorial, we will write a program to find a pair of elements from an array whose sum equals a given number in java …
Read More

Program to Print Diamond Alphabet Patterns in C

In this tutorial, we will learn to write a C program to print Diamond patterns using alphabets/characters. However, in this tutorial, we will create a …
Read More

Half Diamond Pattern in C using Alphabets

In this tutorial, we will learn and code the half diamond alphabet patterns in C programming language. However, in this tutorial, we will create a …
Read More

Half Pyramid of Alphabets in C

In this tutorial, we will learn and code alphabet patterns in C programming language specifically the Half pyramid of alphabets in C programming. However, in …
Read More

Inverted Half Pyramid Pattern of Alphabets in C

In this tutorial, we will write a C program to print half Pyramid using alphabets/characters. Before that, you may go through the following topic in …
Read More