{"id":202712,"date":"2025-05-22T08:07:39","date_gmt":"2025-05-22T00:07:39","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202712\/"},"modified":"2025-05-22T08:07:39","modified_gmt":"2025-05-22T00:07:39","slug":"java-%e5%87%bd%e6%95%b0%e4%b8%ad%e5%8f%82%e6%95%b0%e4%bc%a0%e9%80%92%e7%9a%84%e8%b7%a8%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202712\/","title":{"rendered":"Java \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff1f<\/h1>\n

\u600e\u4e48\u5165\u95e8\u6587\u7ae0\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aJava \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u5728\u4e8e\u503c\u7c7b\u578b\u53c2\u6570\u5728\u591a\u7ebf\u7a0b\u540c\u65f6\u4fee\u6539\u65f6\u4e0d\u4f1a\u66f4\u65b0\u539f\u59cb\u53d8\u91cf\u3002\u89e3\u51b3\u65b9\u6848\u5305\u62ec\uff1a\u4f7f\u7528\u4e0d\u53ef\u53d8\u7c7b\u578b\uff0c\u5982 String\u3001Integer\uff1b\u4f7f\u7528\u5305\u88c5\u7c7b\uff0c\u5982 AtomicInteger\uff0c\u5bf9\u503c\u7c7b\u578b\u8fdb\u884c\u7ebf\u7a0b\u5b89\u5168\u64cd\u4f5c\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898<\/strong><\/p>\n

\u524d\u8a00<\/strong><\/p>\n

\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u5f53\u51fd\u6570\u53c2\u6570\u88ab\u8de8\u7ebf\u7a0b\u4fee\u6539\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u8fd9\u4e2a\u95ee\u9898\u5e76\u63d0\u4f9b\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n

\u95ee\u9898\u63cf\u8ff0<\/strong><\/p>\n

\u8003\u8651\u4ee5\u4e0b\u51fd\u6570\uff1a<\/p>\n

public static void modifyValue(int value) {\n    value++;\n}<\/pre>\n
\u5982\u679c\u8fd9\u4e2a\u51fd\u6570\u88ab\u4e24\u4e2a\u4e0d\u540c\u7684\u7ebf\u7a0b\u540c\u65f6\u8c03\u7528\uff0c\u5e76\u4e14\u90fd\u4f20\u9012\u4e86\u540c\u4e00\u4e2a int<\/code> \u53d8\u91cf\uff0c\u90a3\u4e48\u8fd9\u4e2a\u53d8\u91cf\u7684\u503c\u53ef\u80fd\u4e0d\u4f1a\u6b63\u786e\u66f4\u65b0\u3002\u8fd9\u662f\u56e0\u4e3a int<\/code> \u7c7b\u578b\u662f\u503c\u7c7b\u578b\uff0c\u8fd9\u610f\u5473\u7740\u5f53\u5b83\u88ab\u4f20\u9012\u5230\u51fd\u6570\u65f6\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u8be5\u53d8\u91cf\u7684\u526f\u672c\u3002\u56e0\u6b64\uff0c\u5f53\u51fd\u6570\u4fee\u6539\u8be5\u526f\u672c\u65f6\uff0c\u5b83\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u53d8\u91cf\u7684\u503c\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n
\u89e3\u51b3\u6b64\u95ee\u9898\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u662f\u4f7f\u7528\u4e0d\u53ef\u53d8\u7c7b\u578b\u3002\u5728 Java \u4e2d\uff0cString<\/code>\u3001Integer<\/code>\u3001Double<\/code> \u7b49\u7c7b\u578b\u662f\u4e0d\u53ef\u53d8\u7684\u3002\u8fd9\u610f\u5473\u7740\u5f53\u5b83\u4eec\u88ab\u4f20\u9012\u5230\u51fd\u6570\u65f6\uff0c\u4e0d\u4f1a\u521b\u5efa\u5b83\u4eec\u7684\u526f\u672c\uff0c\u5e76\u4e14\u51fd\u6570\u5bf9\u5b83\u4eec\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u5c06\u53cd\u6620\u5728\u539f\u59cb\u53d8\u91cf\u7684\u503c\u4e0a\u3002<\/p>\n
\u4f8b\u5982\uff0c\u4ee5\u4e0b\u51fd\u6570\u4f7f\u7528\u4e0d\u53ef\u53d8\u7c7b\u578b\u5e76\u786e\u4fdd\u8de8\u7ebf\u7a0b\u5b89\u5168\uff1a<\/p>\n
public static void modifyValue(Integer value) {\n    value++;\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u6211\u4eec\u5728\u4e00\u4e2a\u591a\u7ebf\u7a0b\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6709\u4e00\u4e2a\u8ba1\u6570\u53d8\u91cf\uff0c\u7528\u4e8e\u8ddf\u8e2a\u5e94\u7528\u7a0b\u5e8f\u6267\u884c\u7684\u8bf7\u6c42\u6570\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u503c\u7c7b\u578b\u6765\u5b58\u50a8\u8be5\u53d8\u91cf\uff0c\u90a3\u4e48\u5728\u9ad8\u5e76\u53d1\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u65e0\u6cd5\u83b7\u5f97\u51c6\u786e\u7684\u8bf7\u6c42\u8ba1\u6570\u3002<\/p>\n
\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 AtomicInteger<\/code> \u7c7b\uff0c\u5b83\u662f\u4e00\u4e2a\u5305\u88c5\u7c7b\uff0c\u5141\u8bb8\u6211\u4eec\u4ee5\u7ebf\u7a0b\u5b89\u5168\u7684\u65b9\u5f0f\u5904\u7406 int<\/code> \u503c\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c06\u521b\u5efa\u4e00\u4e2a AtomicInteger<\/code> \u5b9e\u4f8b\u5e76\u5c06\u5176\u4f20\u9012\u7ed9\u4e00\u4e2a\u51fd\u6570\uff1a<\/p>\n
AtomicInteger count = new AtomicInteger();\n\npublic static void incrementCount(AtomicInteger count) {\n    count.incrementAndGet();\n}<\/pre>\n
\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u653e\u5fc3\u5373\u4f7f\u8be5\u51fd\u6570\u5728\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e2d\u540c\u65f6\u8c03\u7528\uff0ccount<\/code> \u53d8\u91cf\u7684\u503c\u4e5f\u5c06\u6b63\u786e\u66f4\u65b0\u3002<\/p>\n
\u7ed3\u8bba<\/strong><\/p>\n
\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u4f20\u9012\u51fd\u6570\u53c2\u6570\u65f6\uff0c\u52a1\u5fc5\u8003\u8651\u7ebf\u7a0b\u5b89\u5168\u9690\u60a3\u3002\u4f7f\u7528\u4e0d\u53ef\u53d8\u7c7b\u578b\u6216\u5305\u88c5\u7c7b\u53ef\u4ee5\u786e\u4fdd\u8de8\u7ebf\u7a0b\u7684\u53c2\u6570\u4f20\u9012\u5b89\u5168\uff0c\u4ece\u800c\u907f\u514d\u51fa\u73b0\u4e0d\u4e00\u81f4\u548c\u4e0d\u53ef\u9884\u6d4b\u7684\u884c\u4e3a\u3002<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aJava \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u51fd\u6570\u4e2d\u53c2\u6570\u4f20\u9012\u7684\u8de8\u7ebf\u7a0b...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202712","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202712"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202712\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}