java运算符优先级

港控/mmm° 2022-07-15 13:10 195阅读 0赞

[原文][Link 1]

<table style="margin:0px; padding:0px; border:1px solid silver; border-collapse:collapse; word-break:break-word; color:rgb(51,51,51); font-family:verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:25.2px; width:720px"> 
 <tbody style="margin:0px; padding:0px"> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 序列号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 符号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 名称 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 结合性(与操作数) </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 目数 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 说明 </td> 
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 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 1 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> . </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 点 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ( ) </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 圆括号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> [ ] </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 方括号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
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 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 2 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> + </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 正号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 单目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> - </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 负号 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 单目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ++ </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 自增 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 单目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 前缀增，后缀增 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> - - </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 自减 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 前缀减，后缀减 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ~ </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 按位非/取补运算 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 单目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ！ </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 逻辑非 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 单目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> “<a style="margin:0px; padding:0px; text-decoration:none; color:rgb(0,0,0); border-bottom:1px dotted rgb(51,51,51)" rel="nofollow">!”不可以与“=”联用</a> </td> 
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 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 3 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> * </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 乘 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> / </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 除 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 整数除法：取商的整数部分，小数部分去掉，不四舍五入 </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> % </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 取余 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 4 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> + </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 加 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> - </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 减 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 5 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &lt;&lt;&nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 左移位运算符 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;&gt;&nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 带符号右移位运算符 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;&gt;&gt;&nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 无符号右移 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 6 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &lt;&nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 小于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> <a style="margin:0px; padding:0px; text-decoration:none; color:rgb(0,0,0); border-bottom:1px dotted rgb(51,51,51)" rel="nofollow">关系运算符“大于”说明</a> </td> 
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 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &lt;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 小于或等于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;&nbsp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 大于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 大于或等于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> instanceof </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 确定某对象是否属于指定的类 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 7 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> == </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 等于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> <a style="margin:0px; padding:0px; text-decoration:none; color:rgb(0,0,0); border-bottom:1px dotted rgb(51,51,51)" rel="nofollow">关系运算符“==”说明</a> </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> != </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 不等于 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 8 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &amp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 按位与 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 9 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> | </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 按位或 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 10 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ^ </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 按位异或 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 11 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &amp;&amp; </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 短路与 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 12 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> || </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 短路或 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从左到右 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 13 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ? : </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 条件运算符 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 三目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 14 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> = </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 赋值运算符 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 从右到左 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 双目 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> += </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> 混合赋值运算符 </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> -= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> *= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> /= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> %= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &amp;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> |= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> ^= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &lt;&lt;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;&gt;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 <tr style="margin:0px; padding:0px"> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &gt;&gt;&gt;= </td> 
 <td style="margin:0px; padding:3px; border:1px solid silver; border-collapse:collapse"> &nbsp; </td> 
 </tr> 
 </tbody> 
</table>

说明：

1、算数运算符

+ :加法

- ：减法

\* ：乘法

/ ：除法

% ：取余运算

2、关系运算符

< ：只能比较基本类型数据之间的关系，不能比较对象之间的关系。

> : (同关系运算符“<”)

<=: (同关系运算符“<”)

>=: (同关系运算符“<”)

== ：若使用该运算符比较两个对象的引用（变量），则实质上是比较两个变量是否引用了相同的对象。所谓相同的对象是指，是否是在堆栈（Heap）中开辟的同一块儿内存单元中存放的对象。

若比较两个对象的引用(变量)所引用的对象的内容是否相同，则应该使用equals()方法，该方法的返回值类型是布尔值。需要注意的是：若用类库中的类创建对象，则对象的引用调用equals()方法比较的是对象的内容；若用自定义的类来创建对象，则对象的引用调用equals()方法比较的是两个引用是否引用了同一个对象，因为第二种情况equals()方法默认的是比较引用。

!= ：(同关系运算符“==”)

3、逻辑运算符 （操作符只能是布尔类型的）

![复制代码][copycode.gif]

1 public class Demo { 2 public static void main(String[] args) { 3 // System.out.println((!'1'||'1')+5);//编译错误 4 // System.out.println(!5);//编译错误 5 // System.out.println(('1'||'1')+5);//编译错误 6 // System.out.println(1||2);//编译错误 7 // System.out.println(5-3||4-2);//编译错误
 8 System.out.println(5<3||4>3);//true
 9 } 10 }

![复制代码][copycode.gif]

4、位运算符

! ：不可以与=联用，因为!是一元操作符；不可以对布尔类型的数据进行按位非运算

5、移位运算符（只能处理整数运算符）

Char、byte、short类型，在进行移位之前，都将被转换成int类型，移位后的结果也是int类型；移位符号右边的操作数只截取其二进制的后5位（目的是防止因为移位操作而超出int类型的表示范围：2的5次方是32，int类型的最大范围是32位）；对long类型进行移位，结果仍然是long类型，移位符号右边的操作符只截取其二进制的后6位。

<< ：

>> ：若符号位为正，则在最高位插入0；若符号位为负，则在最高位插入1

>>> ：无论正负，都在最高位插入0

--------------------

![复制代码][copycode.gif]

1 public class Demo {
     2     public static void main(String[] args) {
     3         // 0000 0000 0000 0101
     4         // 0000 0000 0000 0010
     5         System.out.println(5>>1);//2
     6         // 0000 0000 0000 1000
     7         // 0000 0000 0000 0100
     8         System.out.println(8>>1);//4
     9         System.out.println(3+5>>1);//4
    10         System.out.println(3+(5>>1));//5
    11     }
    12 }

![复制代码][copycode.gif]

[Link 1]: http://www.cnblogs.com/gw811/archive/2012/10/13/2722752.html
[copycode.gif]: /images/20220715/77986ef218744e14b65d0bbd5d64b87c.png