Operators

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Next: Compound Types

This post is part of my ongoing effort to familiarize the readers with the commonalities & variabilities of C++/Java/C# programming languages. A tentative outline of this series can be found at Contents.

An Operator is a syntactic element which specifies that certain arithmetic or logical manipulation must be performed on some data. C++/Java/C# all support the basic operators of C.

Following are some lists of the operators in these languages grouped by their types. The empty cell means the operator is not directly supported by some particular language and the name in bracket besides it shows what can be used as a replacement.

Arithmetic Operators

C++

Java

C#

Meaning

Example

++

++

++

increment by 1

i++; or ++i;

--

--

--

decrement by 1

i--; or --i;

+

+

+

addition

z = x +y;

-

-

-

subtraction

z=x-y

-

-

-

negation

-x or -5

*

*

*

multiplication

z = x*y

/

/

/

division

z = x/y

%

%

%

modulus (remainder)

z = x % y

Conditional Operators

C++

Java

C#

Meaning

Example

&&

&&

&&

conditional AND

if (x && y)

||

||

||

conditional OR

if (x || y)

!

!

!

conditional NOT

 if (!x)

Logical (bitwise) Operators

C++

Java

C#

Meaning

Example

&

&

&

logical AND

z = (x & y);

| |

|

|

logical OR

z = (x | y);

^

^

^

logical XOR

 z = (x ^ y);

~

~

~

logical complement

 z = ~x;

Relational (conditional) Operators

C++

Java

C#

Meaning

Example

>

>

>

greater than

if (x > y);

>=

>=

>=

greater than or equal to

if (x >= y);

<

<

<

less than

if (x < y);

<=

<=

<=

less than or equal to

if (x > y);

==

==

==

equal to

if (x == y);

!=

!=

!=

not equal to

if (x != y);

/*Add two integers and return the result*/
int doSum(int x, int y)
{
    int x = 10;
    int y = 12;
  
    x++; // increment x by 1
    y--; // decrement y by 1

    return x + y; // return 22
}

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Next: Compound Types

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