Summary of Operators

The following quick reference summarizes the operators supported by the Java programming language.

Simple Assignment Operator

=       Simple assignment operator

Arithmetic Operators

+       Additive operator (also used

        for String concatenation)

-       Subtraction operator

*       Multiplication operator

/       Division operator

%       Remainder operator

Assignment Operators

  +=      addition and then assignment                a += 1 is equivalent to a = a + 1

  -=      subtraction and then assignment             a -= 1 is equivalent to a = a - 1

  *=      multiplication and then assignment          a *= 1 is equivalent to a = a * 1

  /=      division and then assignment                a /= 1 is equivalent to a = a / 1

  %=      modulus division and then assignment        a %= 1 is equivalent to a = a % 1

Unary Operators

+       Unary plus operator; indicates

        positive value (numbers are 

        positive without this, however)

-       Unary minus operator; negates

        an expression

++      Increment operator; increments

        a value by 1

--      Decrement operator; decrements

        a value by 1

!       Logical complement operator;

        inverts the value of a boolean

Equality and Relational Operators

==      Equal to

!=      Not equal to

>       Greater than

>=      Greater than or equal to

<       Less than

<=      Less than or equal to

Conditional Operators

&&      Conditional-AND

||      Conditional-OR

?:      Ternary (shorthand for 

        if-then-else statement)

Type Comparison Operator

instanceof      Compares an object to 

                a specified type 

Bitwise and Bit Shift Operators

~       Unary bitwise complement

<<      Signed left shift

>>      Signed right shift

>>>     Unsigned right shift

&       Bitwise AND

^       Bitwise exclusive OR

|       Bitwise inclusive OR