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C# - Operators


Operators


In this session we are going to discuss about various types of operators in use in C#


  • Arithmetic Operator
  • Relational Operator
  • Logical Operator
  • Bitwise Operator
  • Assignment Operator
  • Misc Operator
  • Conditional Operator


Arithmetic Operator

+ - * / % ++ -- 

 Use Arithmetic Operator 



Relational Operator

== != > < >= <=

Use Relational Operator



Logical Operator

 && || !

Use Logical Operator



Bitwise Operator

 ~ ^ | & << >>

Use Bitwise Operator

In case of bitwise operator we need to discuss about what operations these symbols perform.

 suppose we have 2 variables A and B. 

 if A = 9 and B = 12
then A in binary is 1001, B in binary is 1100

 Then A | B = A OR B = 00001001 OR 00001100 =0 0 0 0 1 1 0 1 = 13
Then A & B = A AND B = 00001001 AND 00001100 = 0 0 0 0 1 0 0 0 = 8 
Then A^B = A XOR B = 00001001 XOR 00001100 = 0 0 0 0 0 1 0 1 = 5

Then A<<2 = Shift of A bitwise by 2 digits on leftside = (00001001)<< 2 = (00100100) = 36

Then A>>2 = Shift of A bitwise by 2 digits on rightside = 2>>(00001001) = (00000010) = 2

 Now lets test these examples in C#




Assignment Operator
 = += -= *= /= %= <<= >>= &= ^= |=

 Use Assignment Operator





Miscillaneous Operator
sizeof(), typeof(),  *,  &,  is, as

Conditional Operator

? :
Use Conditional Operator
In the below example the term A>B ? 0:1; needs to be explained 

Here it means 

          if(A>B)
          val = 0;
          else
          val=1;







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