Java运算符(Java Operators)

Operator 	Purpose
+ 	addition of numbers, concatenation of Strings
+= 	add and assign numbers, concatenate and assign Strings
- 	subtraction
-= 	subtract and assign
* 	multiplication
*= 	multiply and assign
/ 	division
/= 	divide and assign
% 	take remainder
%= 	take remainder and assign
++ 	increment by one
-- 	decrement by one
> 	greater than
>= 	greater than or equal to
< 	less than
<= 	less than or equal to
! 	boolean NOT
!= 	not equal to
&& 	boolean AND
|| 	boolean OR
== 	boolean equals
= 	assignment
~ 	bitwise NOT
?: 	conditional
instanceof 	type checking
| 	bitwise OR
|= 	bitwise OR and assign
^ 	bitwise XOR
^= 	bitwise XOR and assign
& 	bitwise AND
&= 	bitwise AND and assign
>> 	shift bits right with sign extension
>>= 	shift bits right with sign extension and assign
<< 	shift bits left
<<= 	shift bits left and assign
>>> 	unsigned bit shift right
>>>= 	unsigned bit shift right and assign

转载自：http://www.cafeaulait.org/course/week2/03.html