C++ Programming by examples can be used as an alternative approach to learn the language, by putting practice over theory. In any case this will require you. This section covers the list of topics for C programming examples. These C examples cover a wide range of programming areas in Computer Science. C program examples. But it's a good idea to learn C before learning C++ or Java. C++ programming language is object-oriented.

If you are looking for C programs, please click here. This C programming basics section explains a simple “Hello World” C program.

Also, it covers below basic topics as well, which are to be known by any C programmer before writing a C program. C Basic commands Explanation #include This is a preprocessor command that includes standard input output header file(stdio.h) from the C library before compiling a C program int main() This is the main function from where execution of any C program begins. { This indicates the beginning of the main function. /* _some _comments _*/ whatever is given inside the command “/* */” in any C program, won’t be considered for compilation and execution. Printf(“Hello _World! “); printf command prints the output onto the screen.

Getch(); This command waits for any character input from keyboard. • Create • Compile • Execute or Run • Get the Output 4. Creation, Compilation and Execution of a C program: Prerequisite: • If you want to create, compile and execute C programs by your own, you have to install C compiler in your machine. Then, you can start to execute your own C programs in your machine. • You can refer below link for how to install C compiler and compile and execute C programs in your machine.

• Once C compiler is installed in your machine, you can create, compile and execute C programs as shown in below link. • If you don’t want to install C/C++ compilers in your machine, you can refer online compilers which will compile and execute C/C++ and many other programming languages online and display outputs on the screen. Please search for online C/C++ compilers in Google for more details. Hadoop 2.6 Jar For Eclipse on this page. Basic structure of a C program: Structure of C program is defined by set of rules called protocol, to be followed by programmer while writing C program. All C programs are having sections/parts which are mentioned below. • Documentation section • Link Section • Definition Section • Global declaration section • Function prototype declaration section • Main function • User defined function definition section Example C program to compare all the sections: You can compare all the sections of a C program with the below C program. This is a C basic program Sum of two numbers: 2 Description for each section of the C program: • Let us see about each section of a C basic program in detail below.

• Please note that a C program mayn’t have all below mentioned sections except main function and link sections. • Also, a C program structure mayn’t be in below mentioned order. Sections Description Documentation section We can give comments about the program, creation or modified date, author name etc in this section. The characters or words or anything which are given between “/*” and “*/”, won’t be considered by C compiler for compilation process.These will be ignored by C compiler during compilation. Example: /* comment line1 comment line2 comment 3 */ Link Section Header files that are required to execute a C program are included in this section Definition Section In this section, variables are defined and values are set to these variables.

Global declaration section Global variables are defined in this section. When a variable is to be used throughout the program, can be defined in this section. Function prototype declaration section Function prototype gives many information about a function like return type, parameter names used inside the function. Main function Every C program is started from main function and this function contains two major sections called declaration section and executable section. User defined function section User can define their own functions in this section which perform particular task as per the user requirement. Example C programs with definition, example program and output: If you have enough basic knowledge on C programming language and all concepts, you can refer following C programs.