{"id":838,"date":"2026-02-27T08:53:09","date_gmt":"2026-02-27T00:53:09","guid":{"rendered":"http:\/\/47.100.165.17\/wordpress\/?p=838"},"modified":"2026-02-27T08:53:11","modified_gmt":"2026-02-27T00:53:11","slug":"%e3%80%90java%e3%80%91%e4%b8%80%e6%96%87%e8%a7%a3%e8%af%b4java%e5%85%b3%e9%94%ae%e5%ad%97%e5%92%8c%e4%bf%9d%e7%95%99%e5%ad%97","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=838","title":{"rendered":"\u3010Java\u3011\u4e00\u6587\u89e3\u8bf4Java\u5173\u952e\u5b57\u548c\u4fdd\u7559\u5b57"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5927\u5bb6\u597d\u5440\uff01\u4f5c\u4e3a\u4e00\u540d\u6df1\u8015 Java \u5f00\u53d1\u7684\u7a0b\u5e8f\u5458\uff0c\u6700\u8fd1\u53d1\u73b0\u5f88\u591a\u65b0\u624b\u5c0f\u4f19\u4f34\u5728\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u7ecf\u5e38\u4f1a\u88ab\u5173\u952e\u5b57\u7684\u7528\u6cd5\u641e\u6df7\u6dc6\uff0c\u751a\u81f3\u4e0d\u5c0f\u5fc3\u7528\u4fdd\u7559\u5b57\u5f53\u53d8\u91cf\u540d\u5bfc\u81f4\u7f16\u8bd1\u62a5\u9519\uff5e \u4eca\u5929\u5c31\u6574\u7406\u4e86\u8fd9\u4efd\u8d85\u5168\u9762\u7684 Java \u5173\u952e\u5b57\u548c\u4fdd\u7559\u5b57\u89e3\u8bf4\uff0c\u4ece\u57fa\u7840\u5b9a\u4e49\u5230\u5b9e\u9645\u5e94\u7528\u573a\u666f\u9010\u4e00\u62c6\u89e3\uff0c\u5e0c\u671b\u80fd\u5e2e\u5927\u5bb6\u592f\u5b9e\u57fa\u7840\uff0c\u5199\u51fa\u66f4\u89c4\u8303\u7684\u4ee3\u7801\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u5f00\u7bc7\uff1a\u4e3a\u4ec0\u4e48\u8981\u91cd\u89c6\u5173\u952e\u5b57\u548c\u4fdd\u7559\u5b57\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Java \u4e2d\u7684\u5173\u952e\u5b57\u662f\u88ab\u8bed\u8a00\u672c\u8eab\u8d4b\u4e88\u7279\u6b8a\u542b\u4e49\u7684\u5355\u8bcd\uff0c\u76f8\u5f53\u4e8e\u7f16\u7a0b\u4e16\u754c\u7684 &#8220;\u6cd5\u5f8b\u6761\u6587&#8221;\uff0c\u5fc5\u987b\u4e25\u683c\u9075\u5faa\u7528\u6cd5\uff1b\u800c\u4fdd\u7559\u5b57\u5219\u662f\u9884\u7559\u7684 &#8220;\u5907\u7528\u8bcd\u6c47&#8221;\uff0c\u867d\u6682\u672a\u4f7f\u7528\u4f46\u7981\u6b62\u4f5c\u4e3a\u6807\u8bc6\u7b26\uff08\u53d8\u91cf\u540d\u3001\u7c7b\u540d\u7b49\uff09\u3002\u719f\u7ec3\u638c\u63e1\u5b83\u4eec\uff0c\u4e0d\u4ec5\u80fd\u907f\u514d\u7f16\u8bd1\u9519\u8bef\uff0c\u66f4\u662f\u5199\u51fa\u9ad8\u6548\u3001\u53ef\u7ef4\u62a4\u4ee3\u7801\u7684\u524d\u63d0\uff5e<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u6838\u5fc3\u5173\u952e\u5b57\u8be6\u89e3\uff08\u9644\u5b9e\u6218\u6ce8\u610f\u70b9\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u7c7b\u4e0e\u63a5\u53e3\u76f8\u5173<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>abstract<\/strong>\uff1a\u58f0\u660e\u62bd\u8c61\u7c7b\u6216\u62bd\u8c61\u65b9\u6cd5\u7684 &#8220;\u6807\u5fd7&#8221;\u3002\u62bd\u8c61\u7c7b\u4e0d\u80fd\u76f4\u63a5\u5b9e\u4f8b\u5316\uff0c\u62bd\u8c61\u65b9\u6cd5\u6ca1\u6709\u65b9\u6cd5\u4f53\uff0c\u5fc5\u987b\u7531\u5b50\u7c7b\u5b9e\u73b0\uff08\u5b50\u7c7b\u82e5\u4e0d\u5b9e\u73b0\uff0c\u81ea\u8eab\u4e5f\u5f97\u662f\u62bd\u8c61\u7c7b\uff09\u3002\u6bd4\u5982\u5b9a\u4e49\u901a\u7528\u7684 &#8220;\u52a8\u7269&#8221; \u62bd\u8c61\u7c7b\uff0c\u5176\u4e2d &#8220;\u53d1\u58f0&#8221; \u65b9\u6cd5\u5c31\u53ef\u4ee5\u8bbe\u4e3a abstract\uff0c\u8ba9\u732b\u3001\u72d7\u5b50\u7c7b\u5404\u81ea\u5b9e\u73b0\u3002<\/li>\n\n\n\n<li><strong>class<\/strong>\uff1a\u521b\u5efa\u7c7b\u7684 &#8220;\u57fa\u7840\u6307\u4ee4&#8221;\uff0cJava \u4e2d\u6240\u6709\u4ee3\u7801\u90fd\u8981\u5305\u88f9\u5728\u7c7b\u91cc\uff0c\u6bd4\u5982<code>public class User {}<\/code>\u5c31\u662f\u6700\u5e38\u89c1\u7684\u7c7b\u5b9a\u4e49\u3002<\/li>\n\n\n\n<li><strong>interface<\/strong>\uff1a\u58f0\u660e\u63a5\u53e3\u7684\u5173\u952e\u5b57\uff0c\u63a5\u53e3\u91cc\u53ea\u6709\u65b9\u6cd5\u7b7e\u540d\uff08\u65e0\u5b9e\u73b0\uff09\u548c\u5e38\u91cf\u3002\u5b50\u7c7b\u7528<code>implements<\/code>\u5b9e\u73b0\u63a5\u53e3\u540e\uff0c\u5fc5\u987b\u91cd\u5199\u6240\u6709\u62bd\u8c61\u65b9\u6cd5\uff0c\u9002\u5408\u5b9a\u4e49\u7edf\u4e00\u89c4\u8303\uff08\u6bd4\u5982 &#8220;\u652f\u4ed8\u63a5\u53e3&#8221;\uff0c\u5fae\u4fe1\u652f\u4ed8\u3001\u652f\u4ed8\u5b9d\u652f\u4ed8\u90fd\u8981\u5b9e\u73b0\u5b83\u7684 &#8220;\u652f\u4ed8\u65b9\u6cd5&#8221;\uff09\u3002<\/li>\n\n\n\n<li><strong>extends<\/strong>\uff1a\u5b9e\u73b0\u7c7b\u7684\u7ee7\u627f\uff0cJava \u652f\u6301\u5355\u7ee7\u627f\uff08\u4e00\u4e2a\u7c7b\u53ea\u80fd\u7ee7\u627f\u4e00\u4e2a\u7236\u7c7b\uff09\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u63a5\u53e3\u5b9e\u73b0\u591a\u7ee7\u627f\u7684\u6548\u679c\u3002\u6bd4\u5982<code>class Dog extends Animal {}<\/code>\uff0cDog \u5c31\u80fd\u7ee7\u627f Animal \u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li><strong>enum<\/strong>\uff1a\u5b9a\u4e49\u679a\u4e3e\u5e38\u91cf\uff0c\u6bd4\u5982<code>enum Weekday {MON, TUE, WED}<\/code>\uff0c\u679a\u4e3e\u503c\u662f\u56fa\u5b9a\u4e0d\u53d8\u7684\uff0c\u9002\u5408\u8868\u793a\u72b6\u6001\u3001\u7c7b\u578b\u7b49\uff08\u6bd4\u5982\u8ba2\u5355\u72b6\u6001\uff1a\u5f85\u652f\u4ed8\u3001\u5df2\u652f\u4ed8\u3001\u5df2\u53d6\u6d88\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u6570\u636e\u7c7b\u578b\u76f8\u5173<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>boolean<\/strong>\uff1a\u5e03\u5c14\u7c7b\u578b\uff0c\u53ea\u6709 true\/false \u4e24\u4e2a\u503c\uff0c\u662f\u5224\u65ad\u903b\u8f91\u7684\u6838\u5fc3\u3002\u6bd4\u5982<code>boolean isLogin = true;<\/code>\uff0c\u5e38\u7528\u4e8e if \u5224\u65ad\uff08<code>if(isLogin){...}<\/code>\uff09\u548c\u5faa\u73af\u6761\u4ef6\u3002<\/li>\n\n\n\n<li><strong>byte\/short\/int\/long<\/strong>\uff1a\u6574\u6570\u7c7b\u578b\uff0c\u6309\u5360\u7528\u5185\u5b58\u4ece\u5c0f\u5230\u5927\u6392\u5217\uff081 \u5b57\u8282\u21922 \u5b57\u8282\u21924 \u5b57\u8282\u21928 \u5b57\u8282\uff09\u3002\u65e5\u5e38\u5f00\u53d1\u4e2d int \u6700\u5e38\u7528\uff0c\u5b58\u50a8\u91cf\u5927\u7684\u573a\u666f\uff08\u6bd4\u5982\u65f6\u95f4\u6233\uff09\u7528 long\uff0c\u6ce8\u610f long \u7c7b\u578b\u8981\u52a0 L \u540e\u7f00\uff08<code>long time = 16234567890L<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>float\/double<\/strong>\uff1a\u6d6e\u70b9\u7c7b\u578b\uff0c\u5b58\u50a8\u5c0f\u6570\u3002double \u7cbe\u5ea6\u66f4\u9ad8\uff08\u9ed8\u8ba4\u6d6e\u70b9\u7c7b\u578b\uff09\uff0cfloat \u9700\u52a0 F \u540e\u7f00\uff08<code>float price = 9.9F<\/code>\uff09\uff0c\u6ce8\u610f\u6d6e\u70b9\u6570\u4e0d\u9002\u5408\u7cbe\u786e\u8ba1\u7b97\uff08\u6bd4\u5982\u91d1\u989d\uff09\uff0c\u5efa\u8bae\u7528 BigDecimal \u7c7b\u3002<\/li>\n\n\n\n<li><strong>char<\/strong>\uff1a\u5b57\u7b26\u7c7b\u578b\uff0c\u5b58\u50a8 Unicode \u5b57\u7b26\uff0c\u7528\u5355\u5f15\u53f7\u5305\u88f9\uff08<code>char c = 'A'<\/code>\uff09\uff0c\u53ef\u8868\u793a\u4e2d\u6587\u3001\u5b57\u6bcd\u3001\u7b26\u53f7\u7b49\uff08<code>char ch = '\u4e2d'<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u63a7\u5236\u6d41\u7a0b\u76f8\u5173<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>if\/else<\/strong>\uff1a\u6761\u4ef6\u5224\u65ad\uff0celse \u662f if \u7684 &#8220;\u5907\u7528\u65b9\u6848&#8221;\uff0c\u4e5f\u53ef\u4ee5\u5d4c\u5957\u4f7f\u7528\uff08<code>if(score>90){...}else if(score>60){...}else{...}<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>switch\/case\/default<\/strong>\uff1a\u591a\u6761\u4ef6\u5206\u652f\uff0c\u9002\u5408\u53d8\u91cf\u503c\u56fa\u5b9a\u7684\u573a\u666f\uff08\u6bd4\u5982\u6839\u636e\u8ba2\u5355\u72b6\u6001\u6267\u884c\u4e0d\u540c\u903b\u8f91\uff09\u3002\u6ce8\u610f case \u540e\u8981\u52a0 break\uff0c\u5426\u5219\u4f1a\u7a7f\u900f\u6267\u884c\u4e0b\u4e00\u4e2a case\uff1bdefault \u662f\u6240\u6709 case \u90fd\u4e0d\u5339\u914d\u65f6\u6267\u884c\u7684\u903b\u8f91\u3002<\/li>\n\n\n\n<li><strong>for\/while\/do-while<\/strong>\uff1a\u5faa\u73af\u7ed3\u6784\u3002for \u9002\u5408\u56fa\u5b9a\u6b21\u6570\u5faa\u73af\uff08<code>for(int i=0;i&lt;10;i++){...}<\/code>\uff09\uff1bwhile \u5148\u5224\u65ad\u6761\u4ef6\u518d\u6267\u884c\uff08\u53ef\u80fd\u4e00\u6b21\u4e0d\u6267\u884c\uff09\uff1bdo-while \u5148\u6267\u884c\u4e00\u6b21\u518d\u5224\u65ad\uff08\u81f3\u5c11\u6267\u884c\u4e00\u6b21\uff09\uff0c\u6bd4\u5982 &#8220;\u5148\u6267\u884c\u4e00\u6b21\u767b\u5f55\u9a8c\u8bc1\uff0c\u518d\u5224\u65ad\u662f\u5426\u91cd\u8bd5&#8221;\u3002<\/li>\n\n\n\n<li><strong>break\/continue<\/strong>\uff1a\u5faa\u73af\u63a7\u5236\u3002break \u76f4\u63a5\u8df3\u51fa\u5f53\u524d\u5faa\u73af\u6216 switch\uff1bcontinue \u8df3\u8fc7\u672c\u6b21\u5faa\u73af\u5269\u4f59\u4ee3\u7801\uff0c\u76f4\u63a5\u8fdb\u5165\u4e0b\u4e00\u6b21\u5faa\u73af\uff08\u6bd4\u5982\u904d\u5386\u6570\u7ec4\u65f6\uff0c\u8df3\u8fc7\u5076\u6570\u5143\u7d20\uff1a<code>if(num%2==0) continue;<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u8bbf\u95ee\u6743\u9650\u4e0e\u4fee\u9970\u7b26<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>public\/private\/protected<\/strong>\uff1a\u8bbf\u95ee\u6743\u9650\u4fee\u9970\u7b26\u3002public \u5168\u7f51\u53ef\u89c1\uff08main \u65b9\u6cd5\u5fc5\u987b\u662f public\uff09\uff1bprivate \u4ec5\u5f53\u524d\u7c7b\u53ef\u89c1\uff08\u5c01\u88c5\u5c5e\u6027\u5e38\u7528\uff0c\u6bd4\u5982 User \u7c7b\u7684 password \u8bbe\u4e3a private\uff0c\u901a\u8fc7 get\/set \u65b9\u6cd5\u8bbf\u95ee\uff09\uff1bprotected \u5bf9\u540c\u5305\u7c7b\u548c\u5b50\u7c7b\u53ef\u89c1\uff08\u9002\u5408\u5b50\u7c7b\u590d\u7528\u7684\u65b9\u6cd5\uff09\u3002<\/li>\n\n\n\n<li><strong>final<\/strong>\uff1a&#8221;\u4e0d\u53ef\u53d8&#8221; \u4fee\u9970\u7b26\uff0c\u4f5c\u7528\u4e8e 3 \u79cd\u573a\u666f\uff1a\n<ul class=\"wp-block-list\">\n<li>\u53d8\u91cf\uff1a\u8d4b\u503c\u540e\u4e0d\u80fd\u4fee\u6539\uff08<code>final String NAME = \"\u4e91\u626c\"<\/code>\uff09\uff0c\u76f8\u5f53\u4e8e\u5e38\u91cf\uff1b<\/li>\n\n\n\n<li>\u65b9\u6cd5\uff1a\u5b50\u7c7b\u4e0d\u80fd\u91cd\u5199\uff08\u6bd4\u5982\u7236\u7c7b\u7684\u5de5\u5177\u65b9\u6cd5\uff0c\u4e0d\u5e0c\u671b\u5b50\u7c7b\u4fee\u6539\u903b\u8f91\uff09\uff1b<\/li>\n\n\n\n<li>\u7c7b\uff1a\u4e0d\u80fd\u88ab\u7ee7\u627f\uff08\u6bd4\u5982 String \u7c7b\u662f final \u7684\uff0c\u6240\u4ee5\u4e0d\u80fd\u521b\u5efa String \u7684\u5b50\u7c7b\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>static<\/strong>\uff1a\u9759\u6001\u4fee\u9970\u7b26\uff0c\u4fee\u9970\u7684\u53d8\u91cf \/ \u65b9\u6cd5\u5c5e\u4e8e\u7c7b\uff0c\u800c\u975e\u5b9e\u4f8b\u3002\u6bd4\u5982<code>static int count = 0<\/code>\uff0c\u6240\u6709\u5bf9\u8c61\u5171\u4eab\u8fd9\u4e2a\u53d8\u91cf\uff1b\u8c03\u7528\u9759\u6001\u65b9\u6cd5\u76f4\u63a5\u7528<code>\u7c7b\u540d.\u65b9\u6cd5\u540d()<\/code>\uff0c\u4e0d\u7528\u521b\u5efa\u5bf9\u8c61\u3002<\/li>\n\n\n\n<li><strong>transient<\/strong>\uff1a\u5e8f\u5217\u5316\u76f8\u5173\uff0c\u4fee\u9970\u7684\u5b57\u6bb5\u4e0d\u4f1a\u88ab\u5e8f\u5217\u5316\uff08\u6bd4\u5982\u7528\u6237\u7684\u5bc6\u7801\u5b57\u6bb5\uff0c\u4e0d\u9700\u8981\u5b58\u5165\u6587\u4ef6\u6216\u7f51\u7edc\u4f20\u8f93\uff09\u3002<\/li>\n\n\n\n<li><strong>volatile<\/strong>\uff1a\u591a\u7ebf\u7a0b\u53ef\u89c1\u6027\uff0c\u4fdd\u8bc1\u4e00\u4e2a\u7ebf\u7a0b\u4fee\u6539\u53d8\u91cf\u540e\uff0c\u5176\u4ed6\u7ebf\u7a0b\u80fd\u7acb\u5373\u770b\u5230\u65b0\u503c\uff08\u907f\u514d\u7ebf\u7a0b\u7f13\u5b58\u5bfc\u81f4\u7684\u6570\u636e\u4e0d\u4e00\u81f4\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u5f02\u5e38\u5904\u7406\u76f8\u5173<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>try\/catch\/finally\/throw\/throws<\/strong>\uff1a\u5f02\u5e38\u5904\u7406\u4e94\u4ef6\u5957\u3002try \u5305\u88f9\u53ef\u80fd\u51fa\u9519\u7684\u4ee3\u7801\uff1bcatch \u6355\u83b7\u6307\u5b9a\u7c7b\u578b\u7684\u5f02\u5e38\uff08\u53ef\u591a\u4e2a catch\uff09\uff1bfinally \u65e0\u8bba\u662f\u5426\u5f02\u5e38\u90fd\u4f1a\u6267\u884c\uff08\u5e38\u7528\u4e8e\u5173\u95ed\u6d41\u3001\u91ca\u653e\u8d44\u6e90\uff09\uff1bthrow \u4e3b\u52a8\u629b\u51fa\u5f02\u5e38\uff08<code>throw new NullPointerException(\"\u53c2\u6570\u4e0d\u80fd\u4e3a\u7a7a\")<\/code>\uff09\uff1bthrows \u58f0\u660e\u65b9\u6cd5\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38\uff08\u544a\u77e5\u8c03\u7528\u8005\u9700\u5904\u7406\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u5176\u4ed6\u5e38\u7528\u5173\u952e\u5b57<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>new<\/strong>\uff1a\u521b\u5efa\u5bf9\u8c61\u6216\u6570\u7ec4\u7684 &#8220;\u6307\u4ee4&#8221;\uff0c\u6bd4\u5982<code>User user = new User();<\/code>\uff08\u521b\u5efa\u5bf9\u8c61\uff09\u3001<code>int[] arr = new int[10];<\/code>\uff08\u521b\u5efa\u6570\u7ec4\uff09\u3002<\/li>\n\n\n\n<li><strong>null<\/strong>\uff1a\u8868\u793a\u53d8\u91cf\u6ca1\u6709\u5f15\u7528\u4efb\u4f55\u5bf9\u8c61\uff0c\u6ce8\u610f\u907f\u514d\u7a7a\u6307\u9488\u5f02\u5e38\uff08\u8c03\u7528 null \u5bf9\u8c61\u7684\u65b9\u6cd5\u4f1a\u62a5\u9519\uff09\u3002<\/li>\n\n\n\n<li><strong>package\/import<\/strong>\uff1a\u5305\u7ba1\u7406\u76f8\u5173\u3002package \u58f0\u660e\u7c7b\u6240\u5728\u7684\u5305\uff08\u6bd4\u5982<code>package com.yunyang.java<\/code>\uff09\uff1bimport \u5bfc\u5165\u5176\u4ed6\u5305\u7684\u7c7b\uff08\u6bd4\u5982<code>import java.util.ArrayList<\/code>\uff09\uff0c\u907f\u514d\u5199\u5168\u7c7b\u540d\u3002<\/li>\n\n\n\n<li><strong>instanceof<\/strong>\uff1a\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u5c5e\u4e8e\u67d0\u4e2a\u7c7b\uff0c\u6bd4\u5982<code>if(user instanceof Student)<\/code>\uff08\u5224\u65ad user \u662f\u5426\u662f Student \u7c7b\u7684\u5b9e\u4f8b\uff09\u3002<\/li>\n\n\n\n<li><strong>return<\/strong>\uff1a\u7ed3\u675f\u65b9\u6cd5\u6267\u884c\uff0c\u5e26\u8fd4\u56de\u503c\u7684\u65b9\u6cd5\u5fc5\u987b\u7528 return \u8fd4\u56de\u7ed3\u679c\uff08<code>return 10;<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>strictfp<\/strong>\uff1a\u9650\u5236\u6d6e\u70b9\u6570\u8ba1\u7b97\u7cbe\u5ea6\uff0c\u4fdd\u8bc1\u8de8\u5e73\u53f0\u8ba1\u7b97\u7ed3\u679c\u4e00\u81f4\uff08\u65e5\u5e38\u5f00\u53d1\u7528\u5f97\u5c11\uff0c\u4f46\u91d1\u878d\u3001\u79d1\u5b66\u8ba1\u7b97\u573a\u666f\u53ef\u80fd\u9700\u8981\uff09\u3002<\/li>\n\n\n\n<li><strong>super\/this<\/strong>\uff1asuper \u8c03\u7528\u7236\u7c7b\u7684\u65b9\u6cd5\u6216\u6784\u9020\u5668\uff08<code>super.setName(\"\u5f20\u4e09\")<\/code>\uff09\uff1bthis \u6307\u4ee3\u5f53\u524d\u5bf9\u8c61\uff0c\u8c03\u7528\u81ea\u8eab\u7684\u65b9\u6cd5\u6216\u5c5e\u6027\uff08<code>this.getId()<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>synchronized<\/strong>\uff1a\u591a\u7ebf\u7a0b\u540c\u6b65\u5173\u952e\u5b57\uff0c\u4fee\u9970\u65b9\u6cd5\u6216\u4ee3\u7801\u5757\uff0c\u4fdd\u8bc1\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\uff08\u907f\u514d\u5e76\u53d1\u5b89\u5168\u95ee\u9898\uff0c\u6bd4\u5982\u94f6\u884c\u8f6c\u8d26\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001Java \u4fdd\u7559\u5b57\uff08\u4e0d\u53ef\u7528\u4f5c\u6807\u8bc6\u7b26\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u7559\u5b57\u662f Java \u9884\u7559\u7684\u8bcd\u6c47\uff0c\u76ee\u524d\u672a\u4f7f\u7528\u4f46\u7981\u6b62\u4f5c\u4e3a\u53d8\u91cf\u540d\u3001\u7c7b\u540d\u7b49\uff0c\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>goto<\/strong>\uff1a\u5728 C \u8bed\u8a00\u4e2d\u662f &#8220;\u8df3\u8f6c\u8bed\u53e5&#8221;\uff0c\u4f46 Java \u7981\u7528\uff08\u4f1a\u7834\u574f\u7a0b\u5e8f\u7ed3\u6784\uff0c\u5bfc\u81f4\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\uff09\uff1b<\/li>\n\n\n\n<li><strong>const<\/strong>\uff1aC \u8bed\u8a00\u4e2d\u7528\u4e8e\u58f0\u660e\u5e38\u91cf\uff0cJava \u4e2d\u7528<code>public static final<\/code>\u66ff\u4ee3\u5176\u529f\u80fd\uff08\u6bd4\u5982<code>public static final int MAX = 100<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u603b\u7ed3\uff1a\u907f\u5751\u5c0f\u6280\u5de7<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5173\u952e\u5b57\u5168\u662f\u5c0f\u5199\uff08\u6bd4\u5982 class \u4e0d\u662f Class\uff0cClass \u662f\u7c7b\u540d\uff09\uff1b<\/li>\n\n\n\n<li>\u4e0d\u8981\u7528\u5173\u952e\u5b57\u6216\u4fdd\u7559\u5b57\u5f53\u6807\u8bc6\u7b26\uff08\u6bd4\u5982<code>int class = 10;<\/code>\u4f1a\u7f16\u8bd1\u62a5\u9519\uff09\uff1b<\/li>\n\n\n\n<li>\u91cd\u70b9\u638c\u63e1 final\u3001static\u3001\u8bbf\u95ee\u6743\u9650\u4fee\u9970\u7b26\uff08public\/private\/protected\uff09\u3001\u5f02\u5e38\u5904\u7406\u76f8\u5173\u5173\u952e\u5b57\uff08\u65e5\u5e38\u5f00\u53d1\u9ad8\u9891\u4f7f\u7528\uff09\uff1b<\/li>\n\n\n\n<li>\u591a\u7ed3\u5408\u5b9e\u9645\u573a\u666f\u7ec3\u4e60\uff08\u6bd4\u5982\u7528 abstract \u5b9a\u4e49\u62bd\u8c61\u7c7b\u3001\u7528 try-catch \u5904\u7406\u6587\u4ef6\u8bfb\u5199\u5f02\u5e38\uff09\uff0c\u52a0\u6df1\u7406\u89e3\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\u5c31\u662f Java \u5173\u952e\u5b57\u548c\u4fdd\u7559\u5b57\u7684\u5b8c\u6574\u89e3\u8bf4\u5566\uff01\u5176\u5b9e\u8fd9\u4e9b\u5173\u952e\u5b57\u770b\u4f3c\u591a\uff0c\u4f46\u53ea\u8981\u7ed3\u5408\u5b9e\u9645\u5f00\u53d1\u573a\u666f\u8bb0\u5fc6\uff0c\u5f88\u5feb\u5c31\u80fd\u719f\u7ec3\u8fd0\u7528\uff5e \u5982\u679c\u4f60\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86\u7279\u6b8a\u573a\u666f\u6216\u7591\u60d1\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\uff0c\u6211\u4eec\u4e00\u8d77\u4ea4\u6d41\u63a2\u8ba8\uff01\u53e6\u5916\uff0c\u540e\u7eed\u8fd8\u4f1a\u5206\u4eab\u66f4\u591a Java \u57fa\u7840\u5e72\u8d27\uff0c\u8bb0\u5f97\u5173\u6ce8\u6211\u7684\u535a\u5ba2\u54e6\uff5e \ud83c\udf1f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\u5440\uff01\u4f5c\u4e3a\u4e00\u540d\u6df1\u8015 Java \u5f00\u53d1\u7684\u7a0b\u5e8f\u5458\uff0c\u6700\u8fd1\u53d1\u73b0\u5f88\u591a\u65b0\u624b\u5c0f\u4f19\u4f34\u5728\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u7ecf\u5e38\u4f1a\u88ab\u5173\u952e\u5b57\u7684\u7528\u6cd5\u641e\u6df7\u6dc6<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=838\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":872,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-838","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=838"}],"version-history":[{"count":2,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/838\/revisions"}],"predecessor-version":[{"id":840,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/838\/revisions\/840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/872"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}