{"id":1247,"date":"2024-07-25T15:35:51","date_gmt":"2024-07-25T07:35:51","guid":{"rendered":"http:\/\/www.jusesgod.com\/?p=1247"},"modified":"2024-07-26T13:53:50","modified_gmt":"2024-07-26T05:53:50","slug":"java%e8%99%9a%e6%8b%9f%e6%9c%ba%e8%a7%84%e8%8c%83java-se-8-%e7%89%88","status":"publish","type":"post","link":"http:\/\/www.jusesgod.com\/?p=1247","title":{"rendered":"\u7b2c\u4e09\u7ae0 Java\u865a\u62df\u673a\u7f16\u8bd1\u5668"},"content":{"rendered":"\n<p><em>\u793a\u610f\u628aJava\u8bed\u8a00\u7f16\u5199\u7684\u6e90\u4ee3\u7801\u7f16\u8bd1\u4e3aJava\u865a\u62df\u673a\u6307\u4ee4\u96c6\u7684\u7f16\u8bd1\u5668\u3002<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.1 \u793a\u4f8b\u7684\u683c\u5f0f\u8bf4\u660e<\/h2>\n\n\n\n<p><em>&lt;index&gt;&lt;opcode&gt;[&lt;operand1&gt;[&lt;operand2&gt;&#8230;]] [&lt;comment&gt;]<\/em><\/p>\n\n\n\n<p>javap\u751f\u6210\u7684\u8bed\u53e5\u662f\u975e\u6b63\u5f0f\u201c\u865a\u62df\u673a\u6c47\u7f16\u8bed\u8a00\u201d\u3002&lt;index&gt;\u662f<strong>\u65b9\u6cd5\u8d77\u59cb\u5904<\/strong>\uff08\u6307\u4ee4\u7684\u64cd\u4f5c\u7801\u96c6\u5408\u5730\u5740\uff09\u7684\u5b57\u8282\u504f\u79fb\u91cf\uff0c\u6240\u4ee5\u4e0d\u4e00\u5b9a\u662f\u8fde\u7eed\u7684\uff0c\u5982\u679c\u4e00\u884c\u6307\u4ee4\u4f7f\u7528\u4e86\u4e24\u4e2a\u5b57\u8282\uff0c\u4e0b\u4e00\u4e2aindex\u5c31\u4f1a+2\u3002<\/p>\n\n\n\n<p>#\u6570\u5b57 \u8868\u793a\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60\u7d22\u5f15\u7684\u64cd\u4f5c\u6570\uff0c\u6ce8\u91ca\uff08&lt;comment&gt;\uff09\u4e2d\u4f1a\u6709\u8fd9\u4e2a\u64cd\u4f5c\u6570\u7684\u63cf\u8ff0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.2 \u5e38\u91cf\u3001\u5c40\u90e8\u53d8\u91cf\u548c\u63a7\u5236\u7ed3\u6784\u7684\u4f7f\u7528<\/h2>\n\n\n\n<p>Java\u865a\u62df\u673a\u662f\u57fa\u4e8e\u6808\u67b6\u6784\u8bbe\u8ba1\u7684\u3002\u6bcf\u8c03\u7528\u4e00\u4e2a\u65b9\u6cd5\u5c31\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6808\u5e27\u3002\u53ea\u6709\u5f53\u524d\u6808\u5e27\u4e2d\u7684\u64cd\u4f5c\u6570\u624d\u662f\u6d3b\u52a8\u7684\u3002<\/p>\n\n\n\n<p>Java\u865a\u62df\u673a\u6307\u4ee4\u96c6\u4f7f\u7528\u4e0d\u540c\u7684\u5b57\u8282\u7801\u6765\u533a\u5206\u4e0d\u540c\u7684\u64cd\u4f5c\u6570\u7c7b\u578b\u3002\u800c\u4e14Java\u865a\u62df\u673a\u7ecf\u5e38\u5229\u7528\u64cd\u4f5c\u7801\u6765\u9690\u5f0f\u5730\u5305\u542b\u67d0\u4e9b\u64cd\u4f5c\u6570\uff0c\u4f8b\u5982\u6307\u4ee4<em>iconst_0<\/em>\u4f1a\u628aint\u7c7b\u578b\u76840\u503c\u538b\u5165\u64cd\u4f5c\u6570\u6808\uff0c\u8fd9\u6837icount_0\u5c31\u4e0d\u7528\u4e13\u95e8\u4e3a\u5165\u6808\u64cd\u4f5c\u4fdd\u5b58\u76f4\u63a5\u64cd\u4f5c\u6570\u7684\u503c\u4e86\u3002icoust_0\u66ff\u6362\u6210bipush 0\u4e5f\u80fd\u83b7\u5f97\u6b63\u786e\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u5c40\u90e8\u53d8\u91cf\u8868\u548c\u64cd\u4f5c\u6570\u6808\u4f20\u9012\uff1aistore_1\uff0ciload_1\u3002\u8fd9\u4e24\u4e2a\u64cd\u4f5c\u90fd\u9ed8\u8ba4\u5bf9\u7b2c\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.3 \u7b97\u6570\u8fd0\u7b97<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">3.4 \u8bbf\u95ee\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60<\/h2>\n\n\n\n<p>ldc\u548cldc_w\u6307\u4ee4\u7528\u4e8e\u8bbf\u95ee\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60\u4e2d\u7684\u503c\u3002\u4e0d\u5305\u62ecdouble\u548clong\u578b\uff0c\u6761\u76ee\u5c11\u65f6\u4f7f\u7528ldc\uff0c\u6761\u76ee\u8fc7\u591a\uff08\u591a\u4e8e256\u4e2a\uff0c\u53731\u4e2a\u5b57\u8282\u80fd\u8868\u793a\u7684\u8303\u56f4\uff09\u65f6\uff0c\u9700\u8981\u4f7f\u7528ldc_w\u3002ldc2_w\u7528\u4e8e\u8bbf\u95ee\u7c7b\u578b\u4e3adouble\u548clong\u7684\u8fd0\u884c\u65f6\u5e38\u91cf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.5 \u4e0e\u63a7\u5236\u7ed3\u6784\u6709\u5173\u7684\u66f4\u591a\u793a\u4f8b<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: java; title: ; notranslate\" title=\"\">\nvoid whileInt(){\n   int i = 0;\n   while(i&lt;100){\n      i++;\n   }\n}\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nMethod void whileInt()\n0 iconst_0\n1 istore_1\n2 goto 8\n5 iinc 1 1\n8 iload_1\n9 bipush 100\n11 if_icmplt 5\n14 return\n<\/pre><\/div>\n\n\n<p>\u865a\u62df\u673a\u4f1a\u5bf9\u4ee3\u7801\u8fdb\u884c\u4f18\u5316\uff0c\u6bd4\u5982\u5c06\u5224\u65ad\u6307\u4ee4\u653e\u5728\u5faa\u73af\u5e95\u90e8\uff0c\u8fd9\u6837\u53ef\u4ee5\u5728\u6bcf\u6b21\u8fd0\u884c\u4e2d\u5c11\u8fd0\u884c\u4e00\u6761Java\u865a\u62df\u673a\u6307\u4ee4\u3002<\/p>\n\n\n\n<p>\u6bcf\u4e2a\u6d6e\u70b9\u7c7b\u578b\u6570\u636e\u90fd\u6709\u4e24\u6761\u6bd4\u8f83\u6307\u4ee4\uff1a\u5bf9\u4e8efloat\u7c7b\u578b\u662ffcmpl\u548cfcmpg\uff0c\u5bf9\u4e8edouble\u662fdcmpl\u548cfcmpg\u3002\u8fd9\u4e9b\u6307\u4ee4\u8bed\u4e49\u76f8\u4f3c\uff0c\u4ec5\u4ec5\u5728\u5bf9\u5f85NaN\u53d8\u91cf\u65f6\u6709\u6240\u533a\u522b\u3002\uff08<em>link 2.3.2 NaN\u65f6\u65e0\u5e8f\u7684<\/em>\uff09<br>\u5f53\u64cd\u4f5c\u6570\u4e2d\u6709NaN\u65f6\uff0cfcmpl\u4f1a\u628a<strong><em> -1 <\/em><\/strong>\u538b\u5165\u64cd\u4f5c\u6570\u6808\uff0c\u800cfcmpg\u4f1a\u538b\u5165 <strong><em>1<\/em><\/strong>\u3002<strong><em>\u5728Java\u865a\u62df\u673a\u6307\u4ee4\u96c6\u4e2d\uff0c\u6240\u6709\u7684\u7b97\u6570\u6bd4\u8f83\u6307\u4ee4\u90fd\u4e0d\u4f1a\u629b\u51fa\u5f02\u5e38\u3002<\/em><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.6 \u63a5\u6536\u53c2\u6570<\/h2>\n\n\n\n<p><em>\u5b9e\u4f8b\u65b9\u6cd5<\/em> \u4f20\u9012\u4e00\u4e2a\u6307\u5411\u8be5\u5b9e\u4f8b\u7684\u5f15\u7528\u4f5c\u4e3a\u65b9\u6cd5\u7684\u7b2c0\u4e2a\u5c40\u90e8\u53d8\u91cf\u3002<br>\u7c7b\uff08static\uff09\u65b9\u6cd5\u4e0d\u9700\u8981\u4f20\u9012\u5b9e\u4f8b\u5f15\u7528\uff0c\u6240\u4ee5\u4ed6\u4eec\u4e0d\u9700\u8981\u4f7f\u7528\u7b2c0\u4e2a\u5c40\u90e8\u53d8\u91cf\u6765\u4fdd\u5b58this\u5173\u952e\u5b57\uff0c\u800c\u662f\u4f1a\u7528\u5b83\u6765\u4fdd\u5b58\u65b9\u6cd5\u7684\u9996\u4e2a\u53c2\u6570\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.7 \u65b9\u6cd5\u8c03\u7528<\/h2>\n\n\n\n<p>\u666e\u901a\u5b9e\u4f8b\u65b9\u6cd5\u901a\u8fc7\u8c03\u7528invokevirtual\u6307\u4ee4\u5b9e\u73b0\uff0cinvokevirtual\u6307\u4ee4\u90fd\u4f1a\u5e26\u6709\u4e00\u4e2a\u8868\u793a\u7d22\u5f15\u7684\u53c2\u6570\uff0c\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60\u5728\u8be5\u7d22\u5f15\u5904\u7684\u9879\u4e3a\u67d0\u4e2a\u65b9\u6cd5\u7684\u7b26\u53f7\u5f15\u7528\uff0c\u8fd9\u4e2a\u7b26\u53f7\u5f15\u7528\u53ef\u4ee5\u63d0\u4f9b\u65b9\u6cd5\u6240\u5728\u5bf9\u8c61\u7684\u7c7b\u578b\u7684\u5185\u90e8\u4e8c\u8fdb\u5236\u540d\u79f0\u3001\u65b9\u6cd5\u540d\u79f0\u548c\u65b9\u6cd5\u63cf\u8ff0\u7b26\u3002\uff08<em>link 4.3.3<\/em>\uff09<br>\u65b9\u6cd5\u7684\u8fd4\u56de\u7531ireturn\u6307\u4ee4\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u7c7b\uff08static\uff09\u65b9\u6cd5\u4f1a\u901a\u8fc7invokestatic\u8c03\u7528\u3002<\/p>\n\n\n\n<p>\u5b9e\u529b\u521d\u59cb\u5316\u3001\u7236\u7c7b\u65b9\u6cd5\u548c\u79c1\u6709\u65b9\u6cd5\u901a\u8fc7invokespecial\u6307\u4ee4\u8c03\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.8 \u4f7f\u7528\u5b9e\u529b<\/h2>\n\n\n\n<p>Java\u865a\u62df\u673a\u7684\u5b9e\u4f8b\u901a\u8fc7\u865a\u62df\u673a\u7684new\u6307\u4ee4\u6765\u521b\u5efa\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: java; title: ; notranslate\" title=\"\">\nObject create(){\n   return new Object();\n}\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nMethod java.lang.Object create()\n0 new #1              \/\/  Class java.lang.Object\n3 dup\n4 invokespecial #4    \/\/  Method java.lang.Object.&lt;init&gt;() V\n7 areturn\n<\/pre><\/div>\n\n\n<p>\u7c7b\u5b9e\u4f8b\u7684\u5b57\u6bb5\uff08\u5b9e\u4f8b\u53d8\u91cf\uff09\u5c06\u4f7f\u7528getfield\u548cputfield\u6307\u4ee4\u8fdb\u884c\u8bbf\u95ee\u3002\u4ed6\u4eec\u540e\u9762\u7684\u64cd\u4f5c\u6570\u662f\u5e38\u91cf\u6c60\u7d22\u5f15\uff0c\u4e0d\u4ee3\u8868\u8be5\u5b57\u6bb5\u5728\u7c7b\u5b9e\u4f8b\u4e2d\u7684\u504f\u79fb\u91cf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.9 \u6570\u7ec4<\/h2>\n\n\n\n<p>newarray\u6307\u4ee4\u7528\u4e8e\u521b\u5efa\u5143\u7d20\u7c7b\u578b\u4e3a\u6570\u503c\u7c7b\u578b\u7684\u6570\u7ec4\u3002<br>multianewarry\u6307\u4ee4\u4e00\u6b21\u6027\u521b\u5efa\u591a\u7ef4\u6570\u7ec4\u3002<br>arraylength\u6307\u4ee4\u80fd\u8bbf\u95ee\u6570\u7ec4\u5173\u8054\u7684\u957f\u5ea6\u5c5e\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.10 \u7f16\u8bd1switch\u8bed\u53e5<\/h2>\n\n\n\n<p>tableswitch\u53ef\u4ee5\u9ad8\u6548\u5730\u4ece\u7d22\u5f15\u8868\u4e2d\u786e\u5b9acase\u8bed\u53e5\u5757\u7684\u5206\u652f\u504f\u79fb\u91cf\u3002\u9002\u5408\u6bd4\u8f83\u5bc6\u96c6\u7684\u6761\u4ef6\u503c\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1 tableswitch 0 to 2:\n      0 : 28\n      1 : 30\n      2 : 32\n      default : 34\n<\/pre><\/div>\n\n\n<p>lookupswitch\u6307\u4ee4\u7684\u7d22\u5f15\u8868\u9879\u7531int\u7c7b\u578b\u7684\u5065\uff08\u6765\u6e90\u4e8ecase\u8bed\u53e5\u5757\u540e\u9762\u7684\u6570\u503c\uff09\u4e0e\u5bf9\u5e94\u7684\u76ee\u6807\u8bed\u53e5\u504f\u79fb\u91cf\u6240\u6784\u6210\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1 lookupswitch 3:\n              -100 : 36\n                    0 : 38\n                100 : 40\n           default : 42\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">3.11 \u4f7f\u7528\u64cd\u4f5c\u6570\u6808<\/h2>\n\n\n\n<p>Java\u865a\u62df\u673a\u4e3a\u65b9\u4fbf\u4f7f\u7528\u64cd\u4f5c\u6570\u6808\uff0c\u63d0\u4f9b\u4e86\u5927\u91cf\u4e0d\u533a\u5206\u64cd\u4f5c\u6570\u7c7b\u578b\u7684\u6307\u4ee4\u3002\uff1f\uff1f\uff1f<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.12 \u629b\u51fa\u5f02\u5e38\u548c\u5904\u7406\u5f02\u5e38<\/h2>\n\n\n\n<p>Java\u4f7f\u7528throw\u5173\u952e\u5b57\u629b\u51fa\u5f02\u5e38\uff0c\u7f16\u8bd1\u540e\u865a\u62df\u673a\u4f7f\u7528athrow\u6307\u4ee4\u5b9e\u73b0\u5f02\u5e38\u629b\u51fa\u3002<\/p>\n\n\n\n<p>\u5728try-catch\u4ee3\u7801\u5757\u4e2d\uff0ctry\u8bed\u53e5\u5757\u4eff\u4f5b\u6ca1\u6709\u751f\u6210\u4efb\u4f55\u6307\u4ee4\u3002catch\u7684\u4ee3\u7801\u751f\u6210\u5728return\u4e4b\u540e\uff0c\u7136\u540e\u901a\u8fc7\u5f02\u5e38\u8868\uff08Exception table\uff09\u8c03\u7528\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: java; title: ; notranslate\" title=\"\">\nvoid catchOne(){\n   try{\n      tryItOut();\n   } catch (TestExc e) {\n      handleExc(e);\n   }\n}\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nMethod void catchOne()\n0 aload_0                         \/\/ Beginning of try block\n1 invokevirtual #6            \/\/ Method Example.tryItOut() V\n4 retrun                           \/\/ End of try block; normal return\n5 astore_1                        \/\/ Store thrown value in local var i\n6 aload_0                         \/\/ Push this\n7 aload_1                         \/\/ Push thrown value\n8 invokevirtual #5            \/\/ Invoke handler method :\n                                         \/\/ Example.handleExc(LTestExc;) V\n11 return                          \/\/ Return after handling TestExc\nException table :\nFrom     To        Target         Type\n0            4          5                 Class TestExc\n<\/pre><\/div>\n\n\n<p>\u5982\u679ctry-catch\u662f\u5d4c\u5957\u5173\u7cfb\u7684\uff0c\u90a3\u4e48\u4f1a\u4f53\u73b0\u5728\u5f02\u5e38\u8868\u7684From-To\u4e2d\u3002<\/p>\n\n\n\n<p>*\u5f02\u5e38\u8868\u4e2d\u7684From-To\u7ed3\u6784\u5305\u542b\u7684\u4ee3\u7801\u5757\uff0c\u542bFrom\u504f\u79fb\u91cf\uff0c<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-amber-color\">\u4e0d\u5305\u542b<\/mark>To\u504f\u79fb\u91cf\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.13 \u7f16\u8bd1finally\u8bed\u53e5\u5757<\/h2>\n\n\n\n<p>* \u53ea\u6709\u7f16\u8bd1\u5668\u751f\u6210class\u6587\u4ef6\u7248\u672c\u5c0f\u4e8e50.0\u7684\u60c5\u51b5\u4e0b\uff0c\u624d\u80fd\u4f7f\u7528jsr\u6307\u4ee4\u6765\u7f16\u8bd1finally\u8bed\u53e5\u5757\u3002<\/p>\n\n\n\n<p>\u6709\u56db\u79cd\u65b9\u5f0f\u8ba9\u7a0b\u5e8f\u9000\u51fatry\u8bed\u53e5\uff1a1\ufe0f\u20e3\u6b63\u5e38\u9000\u51fa\uff1b2\ufe0f\u20e3\u901a\u8fc7return\u9000\u51fa\uff1b3\ufe0f\u20e3\u6267\u884cbreak\u6216continue\u8bed\u53e5\uff1b4\ufe0f\u20e3\u629b\u51fa\u5f02\u5e38\u3002\u865a\u62df\u673a\u4f1a\u901a\u8fc7jsr\u6307\u4ee4\u8df3\u8f6c\u5230finally\u4ee3\u7801\u5757\u6307\u4ee4\u4f4d\u7f6e\uff0c\u6267\u884c\u5b8c\u4e4b\u540eret\u6307\u4ee4\u8df3\u56de\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.14 \u540c\u6b65<\/h2>\n\n\n\n<p>Java\u865a\u62df\u673a\u4e2d\u7684\u540c\u6b65\uff08synchronization\uff09\u662f\u7528monitor\u7684\u8fdb\u5165\u548c\u9000\u51fa\u6765\u5b9e\u73b0\u7684\u3002<br>\u540c\u6b65\u6700\u591a\u7684\u5730\u65b9\u53ef\u80fd\u662f\u7ecfsynchronization\u6240\u4fee\u9970\u7684\u540c\u6b65\u65b9\u6cd5\u3002\u540c\u6b65\u65b9\u6cd5\u5e76\u4e0d\u662f\u7528monitorenter\u548cmonitorexit\u6307\u4ee4\u6765\u5b9e\u73b0\u7684\uff0c\u800c\u662f\u7531\u65b9\u6cd5\u8c03\u7528\u6307\u4ee4\u8bfb\u53d6yun\u2006xing\u2006shi\u2006cgngn\u2006liang\u2006chi\u2006ang\u2006chi\u8fd0\u884c\u65f6\u5e38\u91cf\u6c60\u4e2d\u65b9\u6cd5\u7684ACC_SYNCHRONIZED\u6807\u5fd7\uff08link 2.11.10\uff09\u6765\u9690\u5f0f\u5b9e\u73b0\u7684\u3002\u3010\u662f\u4e0d\u662f\u975e\u91cd\u91cf\u7ea7\u9501\u5b9e\u73b0\uff1f\u3011<br>\u663e\u793a\u540c\u65b9\u6cd5\u901a\u8fc7monitorenter\u8fdb\u5165\u540c\u6b65\u65b9\u6cd5\uff0cmonitorexit\u7ed3\u675f\u3002\u7f16\u8bd1\u5668\u5fc5\u987b\u4fdd\u8bc1\u6bcf\u6761monitorenter\u90fd\u6709\u5bf9\u5e94\u7684monitorexit\u6307\u4ee4\u5f97\u5230\u6267\u884c\u3002\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u4ea7\u751f\u4e00\u4e2a\u5f02\u5e38\u5904\u7406\u5668\uff0c\u5b83\u53ef\u4ee5\u5904\u7406\u4efb\u4f55\u5f02\u5e38\uff0c\u5b83\u7684\u4ee3\u7801\u7528\u6765\u6267\u884cmonitorexit\u6307\u4ee4\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.15 \u6ce8\u89e3<\/h2>\n\n\n\n<p>\u6ce8\u89e3\uff08annotation\uff09\u5c06\u4f1a\u5728\uff08link 4.7.16 &#8211; 4.7.22\uff09\u63cf\u8ff0class\u6587\u4ef6\u4e2d\u7684\u8868\u793a\u65b9\u5f0f\u3002\u7ed9\u5305\u58f0\u660e\u7684\u6ce8\u89e3\u8fd8\u9700\u8981\u9075\u5faa\u4e0b\u9762\u4e00\u4e9b\u89c4\u5219\u3002<br>\u5982\u679c\u9047\u5230\u67d0\u4e2a\u6dfb\u52a0\u4e86\u6ce8\u89e3\u7684\u5305\u58f0\u660e\uff0c\u800c\u6ce8\u89e3\u53c8\u5fc5\u987b\u80fd\u591f\u5728\u8fd0\u884c\u7684\u65f6\u5019\u5f97\u4ee5\u8bbf\u95ee\uff0c\u90a3\u4e48\u7f16\u8bd1\u5668\u8981\u751f\u6210\u4e00\u4efd\u5177\u6709\u4e0b\u5217\u7279\u5f81\u7684class\u6587\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u662f\u63a5\u53e3\u6587\u4ef6\uff0cACC_INTERFACE \u548c ACC_ABSTRACT \u6807\u5fd7\u5f00\u542f<\/li>\n\n\n\n<li>\u5982\u679c\u7248\u672c\u5c0f\u4e8e 50.0\uff0c\u5c31\u4e0d\u8bbe\u7f6eACC_SYNTHETIC\u6807\u5fd7\uff1b\u6587\u4ef6\u53f7\u5927\u4e8e50.0\uff0c\u5219\u8bbe\u7f6e\u3002<\/li>\n\n\n\n<li>\u8be5\u63a5\u53e3\u7684\u8bbf\u95ee\u6743\u9650\u662f\u5305\u7ea7\u522b\u7684\u8bbf\u95ee\u6743\u9650\uff08JLS link 6.6.1\uff09<\/li>\n\n\n\n<li>\u8be5\u63a5\u53e3\u7684\u540d\u79f0\u9075\u5faapackage-name.package-info\u8fd9\u4e00\u5185\u90e8\u8868\u793a\u5f62\u5f0f<\/li>\n\n\n\n<li>\u8be5\u63a5\u53e3\u6ca1\u6709\u7236\u63a5\u53e3<\/li>\n\n\n\n<li>\u8be5\u63a5\u53e3\u6240\u5305\u542b\u7684\u6210\u5458\uff0c\u5747\u662f\u7531\u300aJava\u8bed\u8a00\u89c4\u8303\uff08Java SE 8 \u7248\uff09\u300b\u6240\u5b9a\u4e49\u7684\u6210\u5458\uff08JSL link 9.2\uff09<\/li>\n\n\n\n<li>\u5728\u5305\u58f0\u660e\u5c42\u9762\u6240\u52a0\u7684\u6ce8\u91ca\uff0c\u4fdd\u5b58\u4e8eClassFile\u7ed3\u6784attributes\u8868\u4e2d\u7684RuntimeVisibleAnnotations\u5c5e\u6027\u53caRuntimeInvisibleAnnotations\u5c5e\u6027\u91cc\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u793a\u610f\u628aJava\u8bed\u8a00\u7f16\u5199\u7684\u6e90\u4ee3\u7801\u7f16\u8bd1\u4e3aJava\u865a\u62df\u673a\u6307&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-1247","post","type-post","status-publish","format-standard","hentry","category-jvm-specification"],"_links":{"self":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1247"}],"version-history":[{"count":14,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1247\/revisions"}],"predecessor-version":[{"id":1298,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1247\/revisions\/1298"}],"wp:attachment":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1247"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}