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优先级   操作符   含义        关联性32313133353236313431303231363533e59b9ee7ad9431333337613833  用法

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1        [ ]      数组下标      左    array_name[expr]

.        成员选择      左    object.member

( )      方法参数      左    method_name(expr_list)

( )      实例构造      左    class_name(expr_list)

++       后缀自增      左    lvalue++

--       后缀自减      左    lvalue--

2        ++       前缀自增      右    ++rvalue

--       前缀自减      右    --lvalue

~        按位取反      右    ~expr

!        逻辑非        右    !expr

+        一元加        右    +expr

-        一元减        右    -expr

3        ( )      强制转换      右    (type)expr

new      对象实例化    右    new type()

new type(expr_list)

new type[expr]

4        *        乘            左    expr * expr

/        除            左    expr / expr

%        求余          左    expr % expr

5        +        加            左    expr + expr

-        减            左    expr - expr

+        字符串连接    左    strExpr + strExpr

6        >>       有符号右移    左    expr >> distance

>>>      无符号右移    左    expr >>> distance

7        

<=       小于等于      左    expr <= expr

>        大于          左    expr > expr

>=       大于等于      左    expr >= expr

instanceof  类型比较      左    ref instanceof refType

==       等于          左    expr == expr

!=       不等于        左    expr != expr

8        &        整数按位与    左    integralExpr & integralExpr

&        布尔与        左    booleanExpr & booleanExpr

9        ^        整数按位异或  左    integralExpr ^ integralExpr

^        布尔异或      左    booleanExpr ^ booleanExpr

10       |        整数按位或    左    integralExpr | integralExpr

|        布尔或        左    booleanExpr | booleanExpr

11       &&       逻辑与        左    booleanExpr && booleanExpr

12       ||       逻辑或        左    booleanExpr || booleanExpr

13       ? :      条件运算      右    booleanExpr ? expr : expr

14       =        赋值          右    lvalue = expr

*=       乘赋值        右    lvalue *= expr

/=       除赋值        右    lvalue /= expr

%=       模赋值        右    lvalue %= expr

+=       加赋值        右    lvalue += expr

+=    字符串连接赋值   右    lvalue += expr

-=       减赋值        右    lvalue -= expr

<<=      左移赋值      右    lvalue <<= expr

>>=   有符号右移赋值   右    lvalue >>= expr

>>>=  无符号右移赋值   右    lvalue >>>= expr

&=    整数按位与赋值   右    lvalue &= expr

&=       布尔与赋值    右    lvalue &= expr

|=    整数按位或赋值   右    lvalue |= expr

|=       布尔或赋值    右    lvalue |= expr

^=   整数按位异或赋值  右    lvalue ^= expr

^=     布尔异或赋值    右    lvalue ^= expr