前言
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Java官方教程目录2020最新版
运算符 operators
运算符小结 Summary of Operators
下面总结了Java语言支持的运算符。
简单赋值运算符 Simple Assignment Operator
= Simple assignment operator
算术运算符 Arithmetic Operators
+ Additive operator (also used //加法运算符(也用于用于字符串连接)
for String concatenation)
- Subtraction operator
* Multiplication operator
/ Division operator
% Remainder operator //求余运算符
一元运算符 Unary Operators
+ Unary plus operator; indicates //一元加法运算符;表示正值(没有+,也默认为正值)
positive value (numbers are
positive without this, however)
- Unary minus operator; negates //一元减法运算符;否定表达式
an expression
++ Increment operator; increments //递增运算符;将值增加1
a value by 1
-- Decrement operator; decrements //递减运算符;将值增加1
a value by 1
! Logical complement operator; //逻辑补码运算符;反转布尔值
inverts the value of a boolean
相等和关系运算符 Equality and Relational Operators
== Equal to
!= Not equal to
> Greater than
>= Greater than or equal to
< Less than
<= Less than or equal to
条件运算符 Conditional Operators
&& Conditional-AND
|| Conditional-OR
?: Ternary (shorthand for
if-then-else statement)
类型比较运算符 Type Comparison Operator
instanceof Compares an object to //将object与指定类型比较
a specified type
位和位移运算符 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
练一练
参考答案
(ps:所有的章节的问题,橙子都是直接用的英文,感觉这样可以更好地帮助大家理解,其实大家只要耐心点,都可以看懂的)
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