C++ for beginners

Low level languages

Assembler

Non structure

BASIC, COBOL, FORTRAN

Object oriented

C++, JAVA and C# (C sharp)

Middle level language

C, C++

are some examples of C being used.

Database systems Graphics packages Word processors Spreadsheets Operating system development Compilers and Assemblers Network drivers Interpreters

#include

Is a preprocessor directive that tells the compiler to put code from the header called iostream into our program before actually creating the executable

<<symbols

Known as "insertion operators", to indicate what to output.

{ }

Meaning the Begin and End

are written in C language

Operating system programs such as Windows, Unix, Linux

cout<<

Results in a function call with the ensuing text as an argument to the function

"Quotes"

Tell the compiler that you want to output the literal string as-is

return 0;

This command terminates C program (main function) and returns 0.

getch();

This command waits for any character input from keyboard.

C11 standard

adds new features to C programming language and library like type generic macros, anonymous structures, improved Unicode support, atomic operations, multi-threading and bounds-checked functions.

printf("Hello_World! ");

printf command prints the output onto the screen.

C89/C90 standard

- First standardized specification for C language was developed by the American National Standards Institute in 1989.

C++

Is a programming language

The "curly braces" ({and})

Signal the beginning and end of the functions and other code blocks.

Semicolon

Tells the compiler that you're at the end of a command

{

This indicates the beginning of the main function.

}

This indicates the end of the main function.

In 1983, the American National Standards Institute (ANSI)

established a committee to provide a modern, comprehensive definition of C.

%f

for float variable,

%x

for hexadecimal variable

%s

for string variable,

cin.get()

It reads in input and expects the user to hit the return key.

printf() and scanf() functions

are inbuilt library functions in C which are available in C library by default. These functions are declared and related macros are defined in "stdio.h" which is a header file.

C89/C90 and C99

are two standardized editions of C language

%lf

for double variable

C

has been written in assembly language

What's is the website for tutorial

http://fresh2refresh.com/c/c-printf-and-scanf/

First reading website

http://fresh2refresh.com/cprogramming/

Embedded C

includes features not available in C like fixed-point arithmetic, named address spaces, and basic I/O hardware addressing.

C programming

is an ANSI/ISO standard and powerful programming language for developing real time applications.

Structure of C program

is defined by set of rules called protocol

The C language

is structured, middle level programming language developed by Dennis Ritchie

The C programming language

is used for developing system applications that forms a major portion of operating systems such as Windows, UNIX and Linux.

%c

is used to display character variable

printf() function

is used to print the "character, string, float, integer, octal and hexadecimal values" onto the output screen.

#include <stdio.h>

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.

int main()

This line tells the compiler that there is a function named main, and that the function returns an integer, hence int.

C++

program is a collection of commands, which tell the computer to do "something".

/*_some_comments_*/

whatever is given inside the command "/* */" in any C program, won't be considered for compilation and execution.

the ANSI standard, or "ANSI C

was completed late 1988.

C programming language

was invented by Dennis Ritchie at the Bell Laboratories in 1972.

C programming

was invented for implementing UNIX operating system.

C programming language features

were derived from an earlier language called "B" (Basic Combined Programming Language - BCPL)

C99 standard

- Next revision was published in 1999 that introduced new features like advanced data types and other changes.

cout object

Is used to display text

Structure oriented

Examples: C, Pascal, ALGOL and Modula-2

High level language

Examples: Java, Python

\n

Is actually treated as a single character that stands for a newline

We use printf() function with %d format specifier

to display the value of an integer variable.

compiler

turns the program that you write into an executable that your computer can actually understand and run.