Tutorial 1:Getting started with C++.

Tutorial 1:Getting started with C++.

Hi! Friends,

Today  I have started a new program to post c++ tutorial. we will start from the root of c++.

Step -1 For starting writing our programs we need a text editor with compiler

I prefer to use turbo C++.

You can download Turbo C++ from Net.

We will Learn --

• How to make basic program
• How to compile a program
• Checking error in the program
• Increasing readability of a program
• Types of errors 
• What are header files
• What are keywords
• What are identifiers
• What are tokens
• For what  # is used
• What are variables
• What are datatypes
• Types of datatypes
• Fundamental and derived datatypes
• Array in C++
• Classes in C++
• Loops in C++
• Comments in C++
• Multiple and single line comments
• Use of clrscr( ) function
• What are functions
• What are escape sequences
• Use of semicolon

        

And many more!!

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Some Basic Definitions

·       Keywords- words which have predefined meaning is called a keyword.

·       Variables: - variables are the name storage location whose value can be changed during execution.

·       Token: -Token are the smallest individual units.

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Making a very simple program in C++.

# include<iostream.h>     //header file

#include<conio.h>             //another header file   

{ clrscr( );                  //use to clear the screen

  cout<<”ashutosh”;  /*cout stands for standard output device(monitor)*/

  cout<<”/n your name here”;

}

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Output of this program-

ashutosh

your name here

-------------------------------------------------------------------------------

What we get from the above program.

·       In the program we have used # as a preprocessor

·       Iostream.h is the header file which we have used for input/output streams

·       Conio.h is another header file which we have to use for using the function clrscr( )

·       //(double slash are used for single line comments.

·       /* is used for multiple line comments.

·       Comments are not executed by the compiler.

·       /n is the escape sequence which is used for next line.

·       ;(semicolon) is used as a statement terminator.