{"id":31113,"date":"2023-07-20T00:20:58","date_gmt":"2023-10-24T15:18:04","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84%e7%bb%a7%e6%89%bf\/"},"modified":"2025-08-12T22:23:38","modified_gmt":"2025-08-12T14:23:38","slug":"%e5%85%b3%e4%ba%8ejava%e7%9a%84%e7%bb%a7%e6%89%bf","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84%e7%bb%a7%e6%89%bf\/","title":{"rendered":"\u5173\u4e8eJava\u7684\u7ee7\u627f"},"content":{"rendered":"<h1>\u7ee7\u627f\u5c06\u4e00\u4e2a\u7c7b\u4e2d\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u4f20\u9012\u7ed9\u5176\u4ed6\u7c7b\u3002<\/p>\n<p>Java\uff0cRuby\u548cPython\u7b49\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8bed\u8a00\u5177\u6709\u7684\u7279\u70b9\u3002<\/p>\n<p>\u5c06\u4f5c\u4e3a\u57fa\u7840\u7684\u7c7b\u79f0\u4e3a\u7236\u7c7b\uff08\u8d85\u7c7b\u3001\u57fa\u7c7b\uff09\uff0c\u5c06\u7ee7\u627f\u5b83\u7684\u7c7b\u79f0\u4e3a\u5b50\u7c7b\uff08\u5b50\u7c7b\u3001\u6d3e\u751f\u7c7b\uff09\u3002<\/p>\n<p>\u7ee7\u627f\u7684\u5f62\u8c61<\/p>\n<p>\u52a8\u7269\uff08\u7236\u7c7b\uff09<br \/>\n\u5c5e\u6027<br \/>\n\u00b7 \u540d\u5b57\uff08name\uff09<br \/>\n\u00b7 \u5e74\u9f84\uff08age\uff09<br \/>\n\u65b9\u6cd5<br \/>\n\u00b7 \u5403\u996d\uff08eat\uff09<br \/>\n\u00b7 \u6563\u6b65\uff08walk\uff09<\/p>\n<p>\u8bf7\u7528\u6c49\u8bed\u672c\u5730\u5316\u5730\u8f6c\u8ff0\u4ee5\u4e0b\u5185\u5bb9\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\n\u2193\u2193<\/p>\n<p>\u72d7\uff08\u5b50\u7c7b\uff09<br \/>\n\u65b0\u589e\u65b9\u6cd5<br \/>\n\u00b7\u5420\u53eb\uff08\u5420\u53eb\uff09<br \/>\n\u00b7\u5954\u8dd1\uff08\u5954\u8dd1\uff09<\/p>\n<p>\u4eba\u7c7b\uff08\u5b50\u7c7b\uff09<br \/>\n\u9644\u52a0\u65b9\u6cd5<br \/>\n&#8211; \u8bf4\u8bdd\uff08talk\uff09<br \/>\n&#8211; \u5de5\u4f5c\uff08work\uff09<\/p>\n<p>\u4f60\u80fd\u7528\u4e2d\u6587\u628a\u4ee5\u4e0b\u53e5\u5b50\u610f\u601d\u6539\u5199\u4e00\u4e0b\u5417\uff1f\u53ea\u9700\u8981\u7ed9\u51fa\u4e00\u4e2a\u9009\u9879\uff1a<\/p>\n<p>&#8211; The movie was so impactful that it made me cry.<\/p>\n<p>\u5f53\u521b\u5efa\u5177\u6709\u5171\u540c\u9879\u76ee\u548c\u5c5e\u6027\u7684\u591a\u4e2a\u7c7b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u7ee7\u627f\uff0c\u5c31\u50cf\u4e0a\u9762\u7684\u56fe\u50cf\u4e00\u6837\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"c1\">\/\/\u89aa\u30af\u30e9\u30b9\u3068\u306a\u308b\u52d5\u7269\u30af\u30e9\u30b9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">;<\/span>  <span class=\"c1\">\/\/\u540d\u524d<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">age<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5e74\u9f62<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">eat<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">something<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"c1\">\/\/\u98df\u3079\u308b<\/span>\r\n     <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">something<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u3092\u98df\u3079\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">walk<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">a<\/span><span class=\"o\">){<\/span> \r\n     <span class=\"c1\">\/\/\u6b69\u304f <\/span>\r\n     <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"na\">toString<\/span><span class=\"o\">();<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u30e1\u30fc\u30c8\u30eb\u6b69\u304d\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n\r\n<span class=\"c1\">\/\/\u52d5\u7269\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u4f5c\u3063\u305f\u3001\u72ac\u30af\u30e9\u30b9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Dog<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/\u5420\u3048\u308b<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">bark<\/span><span class=\"o\">(){<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u30ef\u30f3\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n <span class=\"c1\">\/\/\u8d70\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">run<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c1\">\/\/\u52d5\u7269\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u4f5c\u3063\u305f\u3001\u4eba\u9593\u30af\u30e9\u30b9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Human<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/\u3057\u3083\u3079\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">talk<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">tk<\/span><span class=\"o\">){<\/span>\r\n   <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u300c\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">tk<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u300d\"<\/span><span class=\"o\">);<\/span>\r\n <span class=\"o\">}<\/span>\r\n <span class=\"c1\">\/\/\u4ed5\u4e8b\u3092\u3059\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">work<\/span><span class=\"o\">(){<\/span>\r\n <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u4f7f\u7528\u7ee7\u627f\u7684\u597d\u5904<\/p>\n<h3>\u7f16\u7a0b\u7684\u884c\u6570\u51cf\u5c11\u4e86\uff0c\u4e5f\u8282\u7701\u4e86\u65f6\u95f4\u3002<br \/>\n\u5982\u679c\u4e0d\u4f7f\u7528\u7ee7\u627f\u7684\u8bdd\uff0c<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u52d5\u7269\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u306a\u3044\u3067\u4f5c\u3063\u305f\u3001\u72ac\u30af\u30e9\u30b9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Dog<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">;<\/span>  <span class=\"c1\">\/\/\u540d\u524d<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">age<\/span><span class=\"o\">;<\/span><span class=\"c1\">\/\/\u5e74\u9f62<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">eat<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">something<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"c1\">\/\/\u98df\u3079\u308b<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">something<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u3092\u98df\u3079\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">walk<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">a<\/span><span class=\"o\">){<\/span> \r\n     <span class=\"c1\">\/\/\u6b69\u304f <\/span>\r\n     <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"na\">toString<\/span><span class=\"o\">();<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u30e1\u30fc\u30c8\u30eb\u6b69\u304d\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/\u5420\u3048\u308b<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">bark<\/span><span class=\"o\">(){<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u30ef\u30f3\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n <span class=\"c1\">\/\/\u8d70\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">run<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c1\">\/\/\u52d5\u7269\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u306a\u3044\u3067\u4f5c\u3063\u305f\u3001\u4eba\u9593\u30af\u30e9\u30b9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Human<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">;<\/span>  <span class=\"c1\">\/\/\u540d\u524d<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">age<\/span><span class=\"o\">;<\/span><span class=\"c1\">\/\/\u5e74\u9f62<\/span>\r\n\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">eat<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">something<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"c1\">\/\/\u98df\u3079\u308b<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">something<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u3092\u98df\u3079\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">walk<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">a<\/span><span class=\"o\">){<\/span> \r\n     <span class=\"c1\">\/\/\u6b69\u304f <\/span>\r\n     <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"na\">toString<\/span><span class=\"o\">();<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u30e1\u30fc\u30c8\u30eb\u6b69\u304d\u307e\u3057\u305f\"<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/\u3057\u3083\u3079\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">talk<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">tk<\/span><span class=\"o\">){<\/span>\r\n   <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u300c\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">tk<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\u300d\"<\/span><span class=\"o\">);<\/span>\r\n <span class=\"o\">}<\/span>\r\n <span class=\"c1\">\/\/\u4ed5\u4e8b\u3092\u3059\u308b<\/span>\r\n <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">work<\/span><span class=\"o\">(){<\/span>\r\n <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u5b50\u7c7b\u4e2d\u91cd\u590d\u7f16\u5199\u4e86\u7236\u7c7b\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u3002\u274c<br \/>\n\u800c\u4e14\uff0c\u5982\u679c\u5c1d\u8bd5\u4fee\u6539\u7236\u7c7b\uff0c\u5219\u9700\u8981\u4fee\u6539\u4e24\u4e2a\u5730\u65b9\u3002\u274c<br \/>\n\u5982\u679c\u5c06\u7236\u7c7b\u5408\u5e76\u4e3a\u4e00\u4e2a\uff0c\u4fee\u6539\u53ea\u9700\u4e00\u4e2a\u5730\u65b9\u3002\u2b55\ufe0f<\/p>\n<p>\u5c06\u7236\u7c7b\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u90fd\u91cd\u5199\u5728\u5b50\u7c7b\u4e2d\u3002\u274c<br \/>\n\u800c\u4e14\uff0c\u5982\u679c\u60f3\u8981\u4fee\u6539\u7236\u7c7b\uff0c\u5219\u9700\u8981\u4fee\u6539\u4e24\u4e2a\u5730\u65b9\u3002\u274c<br \/>\n\u5982\u679c\u628a\u7236\u7c7b\u5408\u5e76\u6210\u4e00\u4e2a\uff0c\u53ea\u9700\u8981\u5728\u4e00\u4e2a\u5730\u65b9\u8fdb\u884c\u4fee\u6539\u3002\u2b55\ufe0f<\/p>\n<h3>2\u3001\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u5177\u6709\u76f8\u540c\u7ee7\u627f\u57fa\u7c7b\u7684\u7c7b\u4eec\u3002<br \/>\n\u4f8b\u5982\uff0c\u5f53\u60f3\u8981\u5c06\u6240\u6709\u52a8\u7269\u90fd\u653e\u5728\u4e00\u8f86\u5361\u8f66\u4e0a\u65f6\uff0c\u53ea\u8981\u5b83\u4eec\u90fd\u7ee7\u627f\u81ea\u540c\u4e00\u4e2a\u52a8\u7269\u7c7b\uff0c\u5c31\u53ef\u4ee5\u5c06\u5b83\u4eec\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u8fdb\u884c\u53d8\u91cf\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"c1\">\/\/\u52d5\u7269\u30af\u30e9\u30b9\u306e\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u683c\u7d0d\u3059\u308b\u914d\u5217<\/span>\r\n<span class=\"nc\">Animal<\/span><span class=\"o\">[]<\/span> <span class=\"n\">animals<\/span><span class=\"o\">;<\/span>\r\n<span class=\"c1\">\/\/\u72ac\u3082\u3001\u4eba\u9593\u3082\u3001\u307e\u3068\u3081\u3089\u308c\u308b<\/span>\r\n<span class=\"n\">animals<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Dog<\/span><span class=\"o\">();<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Human<\/span><span class=\"o\">()};<\/span>\r\n<\/code><\/pre>\n<h1>\u7ee7\u627f\u7684\u7279\u70b9<\/p>\n<h3>\u5728\u5b50\u7c7b\u4e2d\u53ef\u4ee5\u4f7f\u7528\u7236\u7c7b\u7684\u5b57\u6bb5\uff08\u53d8\u91cf\uff0c\u65b9\u6cd5\uff09\u3002\u52a8\u7269\uff08Animal\uff09\u7684\u540d\u79f0\uff08name\uff09\u548c\u98df\u7269\uff08eat\uff09\u4e5f\u662f\u72d7\uff08dog\uff09\u62e5\u6709\u7684\u3002<br \/>\n\u4e5f\u5c31\u662f\u8bf4\uff0c\u7236\u7c7b\u7684\u529f\u80fd\u867d\u7136\u770b\u4e0d\u89c1\uff0c\u4f46\u5b50\u7c7b\u4e5f\u62e5\u6709\u3002<\/p>\n<h3>\u5728\u5b50\u7c7b\u4e2d\u53ef\u4ee5\u91cd\u5199\uff08\u8986\u76d6\uff09\u7236\u7c7b\u7684\u65b9\u6cd5\u3002\u53ef\u4ee5\u8986\u76d6\u7ee7\u627f\u7684\u65b9\u6cd5\u3002<br \/>\n\u8fd9\u6837\u53ef\u4ee5\u4f7f\u76f8\u540c\u7684\u65b9\u6cd5\u5177\u6709\u4e0d\u540c\u7684\u529f\u80fd\u3002<br \/>\n\u4f46\u662f\uff0c\u53c2\u6570\u5fc5\u987b\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<h3>\u53ef\u4ee5\u7ee7\u627f\u7ee7\u627f\uff08\u5b50\u7c7b\uff09\u3002\u53ef\u4ee5\u5c06\u5b50\u7c7b\u4f5c\u4e3a\u7236\u7c7b\uff0c\u5e76\u521b\u5efa\u5b50\u7c7b\u7684\u5b50\u7c7b\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Dog<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"n\">pubic<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">WhiteDog<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Dog<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">color<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"white\"<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u5b50\u7c7b\u4f5c\u4e3a\u767d\u8272\u72d7\u3002<\/p>\n<h1>\u5bb6\u65cf\u306e\u8ca1\u7523\u3092\u7d99\u627f\u3059\u308b\u969b\u306e\u7559\u610f\u70b9<\/p>\n<h3>\u4f7f\u7528final\u5173\u952e\u5b57\u4fee\u9970\u7684\u7236\u7c7b\u5b57\u6bb5\u7981\u6b62\u88ab\u91cd\u5199\u3002\u5982\u679c\u52a0\u4e0a final\uff0c\u5728\u4ee3\u7801\u4e2d\u5c31\u65e0\u6cd5\u8fdb\u884c\u8986\u5199\u7684\u65b9\u6cd5\u3002<br \/>\n\u5f53\u4e0d\u5e0c\u671b\u88ab\u968f\u610f\u4fee\u6539\u5904\u7406\u65f6\u4f7f\u7528\u3002<\/p>\n<h3>\u65e0\u6cd5\u540c\u65f6\u7ee7\u627f\u4e24\u4e2a\u7c7b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Tuna<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Fish<\/span>  \r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u60c5\u51b5\u662f\uff0c\u5bf9\u4e8e\u91d1\u67aa\u9c7c\u60f3\u8981\u540c\u65f6\u7ee7\u627f\u52a8\u7269\u548c\u9c7c\u7684\u7279\u5f81\uff0c\u4f46\u662f\u65e0\u6cd5\u5b9e\u73b0\u274c<\/p>\n<h3>\u6784\u9020\u51fd\u6570\u4e0d\u4f1a\u88ab\u7ee7\u627f\uff0c\u4f1a\u9690\u5f0f\u6267\u884c\u3002\u203b \u6784\u9020\u51fd\u6570\u662f\u6307\u5728\u4ece\u7c7b\u4e2d\u521b\u5efa\u5bf9\u8c61\u65f6\u81ea\u52a8\u6267\u884c\u7684\u65b9\u6cd5<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"kd\">public<\/span> <span class=\"nc\">Dog<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/span>\r\n  <span class=\"nc\">Dog<\/span><span class=\"o\">(){<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>\r\n<span class=\"kd\">public<\/span> <span class=\"nc\">Dog<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">Animal<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/span>\r\n  <span class=\"nc\">Dog<\/span><span class=\"o\">(){<\/span>\r\n    <span class=\"kd\">super<\/span><span class=\"o\">();<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u4ee3\u7801\u6709\u7740\u76f8\u540c\u7684\u542b\u4e49\u3002<br \/>\n\u5373\u4f7f\u5728\u5b50\u7c7b\u4e2d\u5c1d\u8bd5\u91cd\u5199\u6784\u9020\u51fd\u6570\uff0c\u9690\u5f0f\u5730\u4e5f\u4f1a\u6267\u884c\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002<br \/>\n\u5373\u4f7f\u5b50\u7c7b\u6ca1\u6709\u6784\u9020\u51fd\u6570\uff0c\u4e5f\u4f1a\u6267\u884c\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7ee7\u627f\u5c06\u4e00\u4e2a\u7c7b\u4e2d\u7684\u53d8\u91cf\u548c\u65b9\u6cd5\u4f20\u9012\u7ed9\u5176\u4ed6\u7c7b\u3002 Java\uff0cRuby\u548cPython\u7b49\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8bed\u8a00\u5177\u6709\u7684\u7279\u70b9\u3002 \u5c06\u4f5c [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31113","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5173\u4e8eJava\u7684\u7ee7\u627f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5173\u4e8eJava\u7684\u7ee7\u627f\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ejava\u7684\u7ee7\u627f\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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