运算符摘要
以下快速参考总结了 Java 编程语言支持的运算符。
简单赋值运算符
= Simple assignment operator
Arithmetic Operators
+ Additive operator (also used
for String concatenation)
- Subtraction operator
* Multiplication operator
/ Division operator
% Remainder operator
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
平等和关系运算符
== 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)
类型比较运算符
instanceof Compares an object to
a specified type
按位和移位运算符
~ Unary bitwise complement
<< Signed left shift
>> Signed right shift
>>> Unsigned right shift
& Bitwise AND
^ Bitwise exclusive OR
| Bitwise inclusive OR