The document discusses a group project with 5 members and covers the basics of the C++ programming language. It defines C++ as a high-level programming language, discusses its history from Algol to C to C++, and describes its basic structure including main functions, preprocessor directives, variables, data types, conditional statements like if/else, and loops like while, do-while and for.

2. Group members
1) Sarmad
2) Abubakar
3) Shohaib
4) Zunair
5) Hannan Sarfraz

3. C++

4. 1. What is C++ ?
2. Its history?
3. Its working?

5. What is c++?
Programming language
Set of words,symbols and codes used to write programme is called programming
language
Two types of languages
(1)low level (2)high level
Low level languages
• Language near to computer hardware
• Computer can understand these languages
• Instruction are written in binary form and by using symbols
• Only programmers know these language
• Machine language(1st generation language)
• Assembly language(2nd generation language)

6. High level language
• Language close to human language
• Input written in english
• Easily to write and modify
• C++ is heigh level language
Compiler
• Source code
• Object code
• Coverts input written in heigh level language in to low level language

7. HISTORY:
• Algol language
• B language
• C language
• C++
FEATURES
• Convenient language
• Well structured language
• Speed
• Popular language
• Machine independence

8. Basic structure of c++
It consist of folowing parts
• Preprocessor durectives
• Main ( ) function
• Program body (c++ ststments)
#niclude<iostream>
#include<conio.h>
main()
{
Programme body
}
Preprocessor
directrives
Main function

9. • Lines beginning with a hash sign (#) are directives for the preprocessor.
• The #include directive tells the compiler to include some already existing
C++ code
• The directive #include <iostream> tells the preprocessor to include the
iostream standard file
• Cin and cout is define in this library
• #include <conio.h> getch and clrscr are its built in functions
• Getch()
• Clrscr
• After Main( ) the programme body starts
• Cout command is used to show results and print the statement present in “ ”.
• Cin is used to fetch the value from the user
• Endl and ‘/n’ command is used for next line
• We use semicolon ‘;’ at the end of every statement

10. 0-10
Data Types
A data type defines a set of values and a set of operations that can be applied to
those values
• Integer: to store numerical data
• float: to store real values
• double: to store large real values
• char: to store character value

11. Variables
• Variables are names for memory locations.
• It is used to store input and out put results
• Each memory location in a computer has an address.
• Variable is created in Ram and are temporarily stored.

12. Condition making statement
• If is a key word in c++ language
• If statement is a dision making statement
• It can execute or skip a statement by checking a condition
Syntax
If(condition)
{
Statement
};

13. if-else statement
• Type of if statement
• Execute one block of statement when condition is true and other when it is
false
Syntax
If(condition)
{
statement
};
else
{
statement
};

14. Loops
Basically used for two purposes
• To execute statements for a specific number of times
• To use sequence of values
Types of loop
(1) While loop (2) do-while loop (3) for loop
While loop
While(condition)
{
Staement
Increment/decrement
};

15. do-while loop
syntax
do
{
Statement
Increment/decrement
}
While(condition)
Difference between while and do-while
• In while loop condition come 1st and then statements
• In do-while weather the statement comes false but loop must run once

16. For loop
• Known as counter-controlled loop
syntax
For(initilization,condition,increment/decrement)
{
Statement
}
Working
First initilization
Condition
Increment or decrement

17. The End

18. Any questions