{"id":886,"date":"2016-10-23T16:56:12","date_gmt":"2016-10-23T08:56:12","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=886"},"modified":"2016-10-23T16:56:12","modified_gmt":"2016-10-23T08:56:12","slug":"java-%e4%bd%8d%e8%bf%90%e7%ae%97%e7%a7%bb%e4%bd%8d%e3%80%81%e4%bd%8d%e4%b8%8e%e3%80%81%e6%88%96%e3%80%81%e5%bc%82%e6%88%96%e3%80%81%e9%9d%9e%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=886","title":{"rendered":"Java \u4f4d\u8fd0\u7b97(\u79fb\u4f4d\u3001\u4f4d\u4e0e\u3001\u6216\u3001\u5f02\u6216\u3001\u975e\uff09"},"content":{"rendered":"

\n\tJava\u63d0\u4f9b\u7684\u4f4d\u8fd0\u7b97\u7b26\u6709\uff1a\u5de6\u79fb( << )\u3001\u53f3\u79fb( >> ) \u3001\u65e0\u7b26\u53f7\u53f3\u79fb( >>> ) \u3001\u4f4d\u4e0e( & ) \u3001\u4f4d\u6216( | )\u3001\u4f4d\u975e( ~ )\u3001\u4f4d\u5f02\u6216( ^ )\uff0c\u9664\u4e86\u4f4d\u975e( ~ )\u662f\u4e00\u5143\u64cd\u4f5c\u7b26\u5916\uff0c\u5176\u5b83\u7684\u90fd\u662f\u4e8c\u5143\u64cd\u4f5c\u7b26\u3002\n<\/p>\n

\n\t\u5de6\u79fb\u8fd0\u7b97( << )
\n<\/h2>\n

\n\tTest1\u3001\u5c065\u5de6\u79fb2\u4f4d\uff1a\n<\/p>\n

\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(5<<2);\/\/\u8fd0\u884c\u7ed3\u679c\u662f20\r\n   }\r\n}<\/pre>\n
\n\t\u8fd0\u884c\u7ed3\u679c\u662f20\uff0c\u4f46\u662f\u7a0b\u5e8f\u662f\u600e\u6837\u6267\u884c\u7684\u5462\uff1f
\n\t\u9996\u5148\u4f1a\u5c065\u8f6c\u4e3a2\u8fdb\u5236\u8868\u793a\u5f62\u5f0f(java\u4e2d\uff0c\u6574\u6570\u9ed8\u8ba4\u5c31\u662fint\u7c7b\u578b,\u4e5f\u5c31\u662f32\u4f4d):
\n\t0000 0000 0000 0000 0000 0000 0000 0101           \u7136\u540e\u5de6\u79fb2\u4f4d\u540e\uff0c\u4f4e\u4f4d\u88650\uff1a
\n\t0000 0000 0000 0000 0000 0000 0001 0100           \u6362\u7b97\u621010\u8fdb\u5236\u4e3a20\n<\/p>\n
\n\t\u53f3\u79fb\u8fd0\u7b97( >> )
\n<\/h2>\n
\r\nSystem.out.println(5>>2);\/\/\u8fd0\u884c\u7ed3\u679c\u662f1<\/pre>\n
\n\t\u8fd8\u662f\u5148\u5c065\u8f6c\u4e3a2\u8fdb\u5236\u8868\u793a\u5f62\u5f0f\uff1a
\n\t0000 0000 0000 0000 0000 0000 0000 0101 \u7136\u540e\u53f3\u79fb2\u4f4d\uff0c\u9ad8\u4f4d\u88650\uff1a
\n\t0000 0000 0000 0000 0000 0000 0000 0001\n<\/p>\n
\n\t\u65e0\u7b26\u53f7\u53f3\u79fb\u8fd0\u7b97( >>> )
\n<\/h2>\n
\n\t\u6211\u4eec\u77e5\u9053\u5728Java\u4e2dint\u7c7b\u578b\u536032\u4f4d\uff0c\u53ef\u4ee5\u8868\u793a\u4e00\u4e2a\u6b63\u6570\uff0c\u4e5f\u53ef\u4ee5\u8868\u793a\u4e00\u4e2a\u8d1f\u6570\u3002\u6b63\u6570\u6362\u7b97\u6210\u4e8c\u8fdb\u5236\u540e\u7684\u6700\u9ad8\u4f4d\u4e3a0\uff0c\u8d1f\u6570\u7684\u4e8c\u8fdb\u5236\u6700\u9ad8\u4e3a\u4e3a1
\n\t\u4f8b\u5982  -5\u6362\u7b97\u6210\u4e8c\u8fdb\u5236\u540e\u4e3a\uff1a
\n\t1111 1111 1111 1111 1111 1111 1111 1011   (\u521a\u5f00\u59cb\u63a5\u89e6\u4e8c\u8fdb\u5236\u65f6\uff0c\u4e0d\u77e5\u9053\u6700\u9ad8\u4f4d\u662f\u7528\u6765\u8868\u793a\u6b63\u8d1f\u4e4b\u5206\u7684\uff0c\u5f53\u65f6\u5c31\u603b\u60f3\u4e0d\u901a\u3002\u3002\u660e\u660e\u7b97\u8d77\u6765\u5f97\u5230\u7684\u5c31\u662f\u4e00\u4e2a\u6b63\u6570-_-)
\n\t\u6211\u4eec\u5206\u522b\u5bf95\u8fdb\u884c\u53f3\u79fb3\u4f4d\u3001 -5\u8fdb\u884c\u53f3\u79fb3\u4f4d\u548c\u65e0\u7b26\u53f7\u53f3\u79fb3\u4f4d\uff1a\n<\/p>\n
\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(5>>3);\/\/\u7ed3\u679c\u662f0\r\n       System.out.println(-5>>3);\/\/\u7ed3\u679c\u662f-1\r\n       System.out.println(-5>>>3);\/\/\u7ed3\u679c\u662f536870911\r\n   }\r\n}<\/pre>\n
\n\t\u6211\u4eec\u6765\u770b\u770b\u5b83\u7684\u79fb\u4f4d\u8fc7\u7a0b(\u53ef\u4ee5\u901a\u8fc7\u5176\u7ed3\u679c\u6362\u7b97\u6210\u4e8c\u8fdb\u5236\u8fdb\u884c\u5bf9\u6bd4)\uff1a
\n\t5\u6362\u7b97\u6210\u4e8c\u8fdb\u5236\uff1a 0000 0000 0000 0000 0000 0000 0000 0101
\n\t5\u53f3\u79fb3\u4f4d\u540e\u7ed3\u679c\u4e3a0\uff0c0\u7684\u4e8c\u8fdb\u5236\u4e3a\uff1a 0000 0000 0000 0000 0000 0000 0000 0000        \/\/ (\u75280\u8fdb\u884c\u8865\u4f4d)
\n\t-5\u6362\u7b97\u6210\u4e8c\u8fdb\u5236\uff1a 1111 1111 1111 1111 1111 1111 1111 1011
\n\t-5\u53f3\u79fb3\u4f4d\u540e\u7ed3\u679c\u4e3a-1\uff0c-1\u7684\u4e8c\u8fdb\u5236\u4e3a\uff1a
\n\t1111 1111 1111 1111 1111 1111 1111 1111   \/\/ (\u75281\u8fdb\u884c\u8865\u4f4d)
\n\t-5\u65e0\u7b26\u53f7\u53f3\u79fb3\u4f4d\u540e\u7684\u7ed3\u679c 536870911 \u6362\u7b97\u6210\u4e8c\u8fdb\u5236\uff1a
\n\t0001 1111 1111 1111 1111 1111 1111 1111   \/\/ (\u75280\u8fdb\u884c\u8865\u4f4d)
\n\t\u901a\u8fc7\u5176\u7ed3\u679c\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\uff0c\u6b63\u6570\u53f3\u79fb\uff0c\u9ad8\u4f4d\u75280\u8865\uff0c\u8d1f\u6570\u53f3\u79fb\uff0c\u9ad8\u4f4d\u75281\u8865\uff0c\u5f53\u8d1f\u6570\u4f7f\u7528\u65e0\u7b26\u53f7\u53f3\u79fb\u65f6\uff0c\u75280\u8fdb\u884c\u90e8\u4f4d(\u81ea\u7136\u800c\u7136\u7684\uff0c\u5c31\u7531\u8d1f\u6570\u53d8\u6210\u4e86\u6b63\u6570\u4e86)
\n\t\u6ce8\u610f\uff1a\u7b14\u8005\u5728\u8fd9\u91cc\u8bf4\u7684\u662f\u53f3\u79fb\uff0c\u9ad8\u4f4d\u8865\u4f4d\u7684\u60c5\u51b5\u3002\u6b63\u6570\u6216\u8005\u8d1f\u6570\u5de6\u79fb\uff0c\u4f4e\u4f4d\u90fd\u662f\u75280\u8865\u3002(\u81ea\u884c\u6d4b\u8bd5)\n<\/p>\n
\n\t\u4f4d\u4e0e( & )\u8fd0\u7b97
\n<\/h2>\n
\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(5 & 3);\/\/\u7ed3\u679c\u4e3a1\r\n   }\r\n}<\/pre>\n
\n\t\u8fd8\u662f\u8001\u5957\u8def\uff0c\u5c062\u4e2a\u64cd\u4f5c\u6570\u548c\u7ed3\u679c\u90fd\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u8fdb\u884c\u6bd4\u8f83\uff1a
\n\t5\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0101
\n\t3\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0011
\n\t————————————————————————————-
\n\t1\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0001
\n\t\u4f4d\u4e0e\uff1a\u7b2c\u4e00\u4e2a\u64cd\u4f5c\u6570\u7684\u7684\u7b2cn\u4f4d\u4e8e\u7b2c\u4e8c\u4e2a\u64cd\u4f5c\u6570\u7684\u7b2cn\u4f4d\u5982\u679c\u90fd\u662f1\uff0c\u90a3\u4e48\u7ed3\u679c\u7684\u7b2cn\u4e3a\u4e5f\u4e3a1\uff0c\u5426\u5219\u4e3a0\n<\/p>\n
\n\t\u4f4d\u6216( | )\u8fd0\u7b97
\n<\/h2>\n
\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(5 | 3);\/\/\u7ed3\u679c\u4e3a7\r\n   }\r\n}<\/pre>\n
\n\t5\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0101
\n\t3\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0011
\n\t————————————————————————————-
\n\t7\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0111
\n\t\u4f4d\u6216\u64cd\u4f5c\uff1a\u7b2c\u4e00\u4e2a\u64cd\u4f5c\u6570\u7684\u7684\u7b2cn\u4f4d\u4e8e\u7b2c\u4e8c\u4e2a\u64cd\u4f5c\u6570\u7684\u7b2cn\u4f4d \u53ea\u8981\u6709\u4e00\u4e2a\u662f1\uff0c\u90a3\u4e48\u7ed3\u679c\u7684\u7b2cn\u4e3a\u4e5f\u4e3a1\uff0c\u5426\u5219\u4e3a0\n<\/p>\n
\n\t\u4f4d\u5f02\u6216( ^ )\u8fd0\u7b97
\n<\/h2>\n
\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(5 ^ 3);\/\/\u7ed3\u679c\u4e3a6\r\n   }\r\n}<\/pre>\n
\n\t5\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0101
\n\t3\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0011
\n\t————————————————————————————-
\n\t6\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0110
\n\t\u4f4d\u5f02\u6216\uff1a\u7b2c\u4e00\u4e2a\u64cd\u4f5c\u6570\u7684\u7684\u7b2cn\u4f4d\u4e8e\u7b2c\u4e8c\u4e2a\u64cd\u4f5c\u6570\u7684\u7b2cn\u4f4d \u76f8\u53cd\uff0c\u90a3\u4e48\u7ed3\u679c\u7684\u7b2cn\u4e3a\u4e5f\u4e3a1\uff0c\u5426\u5219\u4e3a0\n<\/p>\n
\n\t\u4f4d\u975e( ~ ) \u8fd0\u7b97
\n<\/h2>\n
\n\t\u4f4d\u975e\u662f\u4e00\u5143\u64cd\u4f5c\u7b26\n<\/p>\n
\r\npackage com.xcy;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       System.out.println(~5);\/\/\u7ed3\u679c\u4e3a-6\r\n   }\r\n}<\/pre>\n
\n\t5\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a0000 0000 0000 0000 0000 0000 0000 0101
\n\t————————————————————————————-
\n\t-6\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\uff1a1111 1111 1111 1111 1111 1111 1111 1010
\n\t\u4f4d\u975e\uff1a\u64cd\u4f5c\u6570\u7684\u7b2cn\u4f4d\u4e3a1\uff0c\u90a3\u4e48\u7ed3\u679c\u7684\u7b2cn\u4f4d\u4e3a0\uff0c\u53cd\u4e4b\u3002
\n\t\u7531\u4f4d\u8fd0\u7b97\u64cd\u4f5c\u7b26\u884d\u751f\u800c\u6765\u7684\u6709\uff1a
\n\t&= \u6309\u4f4d\u4e0e\u8d4b\u503c
\n\t|=  \u6309\u4f4d\u6216\u8d4b\u503c
\n\t^= \u6309\u4f4d\u975e\u8d4b\u503c
\n\t>>= \u53f3\u79fb\u8d4b\u503c
\n\t>>>= \u65e0\u7b26\u53f7\u53f3\u79fb\u8d4b\u503c
\n\t<<= \u8d4b\u503c\u5de6\u79fb<\/strong>
\n\t\u548c += \u4e00\u4e2a\u6982\u5ff5\u800c\u5df2\u3002
\n\t\u4e3e\u4e2a\u4f8b\u5b50\uff1a\n<\/p>\n
\r\npackage com.xttblog;\r\npublic class Test {\r\n   public static void main(String[] args) {\r\n       int a = 5\r\n       a &= 3;\r\n       System.out.println(a);\/\/\u7ed3\u679c\u662f1\r\n   }\r\n}\r\n<\/pre>\n
\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>
\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » Java \u4f4d\u8fd0\u7b97(\u79fb\u4f4d\u3001\u4f4d\u4e0e\u3001\u6216\u3001\u5f02\u6216\u3001\u975e\uff09<\/a><\/p>","protected":false},"excerpt":{"rendered":"
Java\u63d0\u4f9b\u7684\u4f4d\u8fd0\u7b97\u7b26\u6709\uff1a\u5de6\u79fb( << )\u3001\u53f3\u79fb( >> ) \u3001\u65e0\u7b26\u53f7\u53f3\u79fb( > […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[69,556,555,554],"class_list":["post-886","post","type-post","status-publish","format-standard","hentry","category-java","tag-java","tag-555","tag-554"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=886"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/886\/revisions"}],"predecessor-version":[{"id":887,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/886\/revisions\/887"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}