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3. Switch statement Logical Statement Assignment Statement Computer programming C++

4. Instructor Sir AamirJamshid

5. Crew Members AzeemMumtaz SaqibMunawar Hafiz Ashfaq M.ZeeshanArshad

6. Logical Statements AND operator It is used to evaluate two conditions . It produces true result if both conditions are true It produces false if any one condition is false Symbol: “&&”

7. Working

8. Example

9. Output Enter the first number 1 Enter the second number 0 0

10. OR operator It is used to evaluate two conditions It produces true if either condition is true It produces false result if both conditions are false Symbol: “| |”

11. Working

12. Example

13. Output Enter the first number 1 Enter the second number 0 1

14. Not Operator It is the reverses the result of condition It gives True if condition is false It gives false if condition is true Symbol: “!”

15. Example ≡ File Edit Search Run Compile Debug Project Options Window Help ╔═[■]════════════════════════════ NONAME00.CPP ══════════════════════════1═[↑]═╗ ║#include<iostream.h> ▲ ║#include<conio.h> ■ ║void main() ▒ ║{ ▒ ║clrscr(); ▒ ║int a; ▒ ║cout<<"Enter the number"<<endl; ▒ ║cin>>a; ▒ ║if(a%2!=0) ▒ ║cout<<"the number is odd"; ▒ ║else ▒ ║cout<<"the number is even"; ▒ ║getch(); ▒ ║} ▼ ╚═☼════ 14:3 ═════◄■▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒►─┘ ┌────────────────────────────────── Message ─────────────────────────────2─────┐ │•Compiling NONAME00.CPP: │ │ Linking TCDEF.EXE: │ │ │ │ │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ F1 Help Alt-F8 Next Msg Alt-F7 PrevMsg Alt-F9 Compile F9 Make F10 Menu

16. Output Enter the number 8 The number is even

17. Hafiz Ashfaq

18. Assignment Statement A statement that assigns a value to a variable is known as assignment statement. The assignment =is used in assignment statement to assign a value or computational result to a variable. The name of variable is written on the left side of assignment operator and the value is written on the right side. The value can be a constant ,variable ,expression or a function.

19. Syntax Variable=Expression Examples A=100; C=a+b; X=c-d+10;

20. LVALUE & RVALUE An L value is an operand that can be written on the left side of assignment operator=it must always be a single value. An rvalue is an operand that can be written on the right side of assignment statement=. All Lvaues can be used as Rvalues.

21. Example ≡ File Edit Search Run Compile Debug Project Options Window Help ╔═[■]════════════════════════════ NONAME00.CPP ══════════════════════════1═[↑]═╗ ║#include<iostream.h> ▲ ║#include<conio.h> ■ ║void main() ▒ ║{clrscr(); ▒ ║inta,b; ▒ ║a=10; ▒ ║b=5; ▒ ║cout<<"a+b="<<a+b<<endl; ▒ ║cout<<"a-b="<<a-b<<endl; ▒ ║cout<<"a*b="<<a*b<<endl; ▒ ║cout<<"a/b="<<a/b<<endl; ▒ ║cout<<"a%b="<<a%b<<endl; ▒ ║getch(); ▒ ║} ▼ ╚═☼════ 14:2 ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒►─┘ ┌────────────────────────────────── Message ─────────────────────────────2─────┐ │•Compiling NONAME00.CPP: │ │ Linking NONAME00.EXE: │ │ │ │ │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ F1 Help Alt-F8 Next Msg Alt-F7 PrevMsg Alt-F9 Compile F9 Make F10 Menu

22. M.ZeeshanArshad

23. Example

24. Output a+b=15 a-b=5 a*b=50 a/b=2 a%b=0

25. Compound Statement Operator It combines the assignment statement with arithmetic operator Syntax:Variable op= expression Variable: The variable to assign a value Op: Any arithmetic operator Expression: It can be a constant, variable or arithmetic operation Example: N+=10 ~ N=N+10

26. Saqibmunawar

27. Switch Statement It is a conditional structure It is an alternative of “nested if” It is used when there are many choices are available and we need one to be executed

28. Syntax

29. Example

30. Nested Switch