{"id":656,"date":"2015-05-15T15:37:46","date_gmt":"2015-05-15T07:37:46","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=656"},"modified":"2026-08-18T12:09:33","modified_gmt":"2026-08-18T04:09:33","slug":"java%e4%b8%ad%e5%8f%82%e6%95%b0%e4%bc%a0%e9%80%92%e6%96%b9%e5%bc%8f%e6%8c%89%e5%80%bc%e4%bc%a0%e9%80%92%e8%bf%98%e6%98%af%e5%bc%95%e7%94%a8%e4%bc%a0%e9%80%92","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=656","title":{"rendered":"Java\u4e2d\u53c2\u6570\u4f20\u9012\u65b9\u5f0f(\u6309\u503c\u4f20\u9012\u8fd8\u662f\u5f15\u7528\u4f20\u9012)"},"content":{"rendered":"
\n

\u5148\u770b\u7a0b\u5e8f\u5458\u90fd\u719f\u6089\u7684\u503c\u4f20\u9012<\/strong>\uff1a\u628a\u57fa\u672c\u7c7b\u578b\u4f20\u8fdb\u65b9\u6cd5\uff0c\u65b9\u6cd5\u91cc\u6539\u7684\u662f\u526f\u672c\uff0c\u8c03\u7528\u65b9\u53d8\u91cf\u4e0d\u4f1a\u53d8\u3002Java \u91cc\u5bf9\u8c61\u53c2\u6570\u540c\u6837\u662f\u503c\u4f20\u9012\u2014\u2014\u4f20\u7684\u662f\u5f15\u7528\u7684\u526f\u672c\uff0c\u4e0d\u662f\u628a\u5f15\u7528\u53d8\u91cf\u672c\u8eab\u642c\u8fc7\u53bb\u3002<\/p>\n

\u6240\u4ee5\uff1a\u65b9\u6cd5\u91cc\u80fd\u6539\u5bf9\u8c61\u5185\u90e8\u72b6\u6001\uff0c\u5374\u6539\u4e0d\u4e86\u8c03\u7528\u65b9\u90a3\u4e2a\u5f15\u7528\u53d8\u91cf\u6307\u5411\u8c01\u3002\u4e0b\u9762\u7528\u4e24\u6bb5\u4ee3\u7801\u548c\u4e24\u5f20\u539f\u56fe\u8bf4\u660e\u3002<\/p>\n

<\/p>\n

\u4e00\u3001\u57fa\u672c\u7c7b\u578b\uff1a\u4f20\u7684\u662f\u5b58\u50a8\u5355\u5143\u91cc\u7684\u5185\u5bb9<\/h2>\n
public static void changeValue(int x) {\n    x = x * 2;\n}\n\nint num = 5;\nSystem.out.println(num);\nchangeValue(num);\nSystem.out.println(num);<\/code><\/pre>\n
\u8c03\u7528\u524d\u540e num<\/code> \u90fd\u662f 5\u3002\u8fc7\u7a0b\u5982\u56fe\uff1a<\/p>\n
\"fe0d1504-e8e6-3e01-a141-6987030fdeed\"<\/a><\/p>\n
num<\/code> \u4f20\u7ed9 changeValue<\/code> \u65f6\uff0c\u662f\u628a num<\/code> \u90a3\u4e2a\u5b58\u50a8\u5355\u5143\u91cc\u7684\u503c 5 \u62f7\u7ed9\u65b9\u6cd5\u91cc\u7684 x<\/code>\uff0cx<\/code> \u53e6\u6709\u81ea\u5df1\u7684\u5b58\u50a8\u5355\u5143\u3002\u4e4b\u540e\u5bf9 x<\/code> \u7684\u64cd\u4f5c\u4e0e num<\/code> \u65e0\u5173\u3002\u503c\u4f20\u9012\u7684\u7cbe\u9ad3\u662f\uff1a\u4f20\u9012\u5b58\u50a8\u5355\u5143\u4e2d\u7684\u5185\u5bb9<\/strong>\uff0c\u800c\u4e0d\u662f\u5730\u5740\u628a\u67c4\u672c\u8eab\u3002<\/p>\n
\u4e8c\u3001\u5bf9\u8c61\u53c2\u6570\uff1a\u4ecd\u7136\u662f\u503c\u4f20\u9012<\/h2>\n
class Person {\n    public static String name = \"Jack\";\n}\n\npublic static void changeName(Person p) {\n    p.name = \"Rose\";\n}\n\npublic static void main(String[] args) {\n    Person person = new Person();\n    System.out.println(person.name);\n    changeName(person);\n    System.out.println(person.name);\n}<\/code><\/pre>\n
\u7b2c\u4e00\u6b21\u6253\u5370 Jack\uff0c\u7b2c\u4e8c\u6b21 Rose\u3002\u5f88\u591a\u4eba\u4ee5\u4e3a\u65b9\u6cd5\u6536\u5230\u7684\u662f\u5f15\u7528\u672c\u8eab\uff0c\u5176\u5b9e\u6536\u5230\u7684\u662f\u5f15\u7528\u7684\u526f\u672c<\/strong>\u3002<\/p>\n
http:\/\/www.cnblogs.com\/clara\/archive\/2011\/09\/17\/2179493.html<\/a> \u5199\u9053\uff1aJava \u53ea\u6709\u503c\u4f20\u9012\u3002\u5bf9\u8c61\u5b9e\u4f8b\u4f5c\u4e3a\u53c2\u6570\u65f6\uff0c\u53c2\u6570\u7684\u503c\u662f\u8be5\u5bf9\u8c61\u5f15\u7528\u7684\u4e00\u4e2a\u526f\u672c\uff0c\u6307\u5411\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002\u5bf9\u8c61\u5185\u5bb9\u53ef\u4ee5\u5728\u88ab\u8c03\u65b9\u6cd5\u91cc\u6539\u53d8\uff0c\u4f46\u8c03\u7528\u65b9\u7684\u5f15\u7528\uff08\u4e0d\u662f\u526f\u672c\uff09\u6c38\u8fdc\u4e0d\u4f1a\u88ab\u6539\u6389\u3002<\/p>\n
\"a9f38c27-261d-3f39-8384-16025b2b9338\"<\/a><\/p>\n
new Person()<\/code> \u5b9e\u9645\u6d89\u53ca\u4e24\u5757\uff1a\u5806<\/strong>\u91cc\u7684\u5b9e\u4f53\u5bf9\u8c61\uff0c\u548c\u6808<\/strong>\u91cc\u7684\u5f15\u7528\u53d8\u91cf person<\/code>\u3002\u56fe\u4e2d\u5de6\u4fa7\u5806\u3001\u7ea2\u8272\u6846\u662f\u5b9e\u4f53\u3001\u8d77\u59cb\u5730\u5740 000012\uff1b\u53f3\u4fa7\u6808\u91cc person<\/code> \u5b58\u7684\u6b63\u662f 000012\u3002<\/p>\n
\u8c03\u7528 changeName(person)<\/code> \u65f6\uff0cperson<\/code> \u628a\u81ea\u5df1\u5b58\u50a8\u5355\u5143\u91cc\u7684\u5185\u5bb9\uff08\u5b9e\u4f53\u5730\u5740\uff09\u4f20\u7ed9\u65b9\u6cd5\u53c2\u6570 p<\/code>\u3002\u6b64\u540e\u5bf9 p<\/code> \u7684\u64cd\u4f5c\u9488\u5bf9 p<\/code> \u81ea\u5df1\u7684\u90a3\u4e00\u683c\uff0c\u4e0e person<\/code> \u90a3\u4e00\u683c\u65e0\u5173\u2014\u2014\u8fd9\u548c\u57fa\u672c\u7c7b\u578b\u628a 5 \u62f7\u8d70\u662f\u540c\u4e00\u4ef6\u4e8b\uff0c\u6240\u4ee5\u4ecd\u53eb\u503c\u4f20\u9012\uff0c\u4e0d\u662f\u5f15\u7528\u4f20\u9012\u3002<\/p>\n
\u5bf9\u8c61\u5185\u90e8\u80fd\u53d8\uff0c\u662f\u56e0\u4e3a p<\/code> \u91cc\u5b58\u7740\u5b9e\u4f53\u5730\u5740\uff0cp<\/code> \u4e5f\u6307\u5411\u540c\u4e00\u5757\u5806\u5185\u5b58\uff0c\u4e8e\u662f\u80fd\u6539\u5c5e\u6027\u3002\u8fd9\u6b63\u662f\u8bef\u4ee5\u4e3a\u201c\u5f15\u7528\u4f20\u9012\u201d\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n\n\n\n
\u4f20\u9012\u4ec0\u4e48<\/th>\n\u65b9\u6cd5\u91cc\u6539\u526f\u672c<\/th>\n\u8c03\u7528\u65b9\u770b\u5f97\u5230\u7684\u6548\u679c<\/th>\n<\/tr>\n<\/thead>\n
\u57fa\u672c\u7c7b\u578b\u7684\u503c<\/td>\n\u6539\u7684\u662f\u65b9\u6cd5\u91cc\u7684 x<\/td>\n\u8c03\u7528\u65b9 num \u4e0d\u53d8<\/td>\n<\/tr>\n
\u5bf9\u8c61\u5f15\u7528\u7684\u526f\u672c\uff08\u5730\u5740\u503c\uff09<\/td>\n\u6539 p \u6307\u5411\u8c01\uff0c\u4e0d\u5f71\u54cd person<\/td>\n\u6539 p \u6240\u6307\u5bf9\u8c61\u7684\u5b57\u6bb5\uff0c\u8c03\u7528\u65b9\u80fd\u770b\u89c1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
\u4e00\u53e5\u8bdd\u603b\u7ed3\uff1aJava \u53ea\u6709\u503c\u4f20\u9012\uff1a\u57fa\u672c\u7c7b\u578b\u62f7\u6570\u503c\uff0c\u5bf9\u8c61\u62f7\u5f15\u7528\u526f\u672c\uff1b\u80fd\u6539\u5bf9\u8c61\u5185\u5bb9\uff0c\u6539\u4e0d\u4e86\u8c03\u7528\u65b9\u90a3\u4e2a\u5f15\u7528\u53d8\u91cf\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
\u5148\u770b\u7a0b\u5e8f\u5458\u90fd\u719f\u6089\u7684\u503c\u4f20\u9012\uff1a\u628a\u57fa\u672c\u7c7b\u578b\u4f20\u8fdb\u65b9\u6cd5\uff0c\u65b9\u6cd5\u91cc\u6539\u7684\u662f\u526f\u672c\uff0c\u8c03\u7528\u65b9\u53d8\u91cf\u4e0d\u4f1a\u53d8\u3002Java \u91cc\u5bf9\u8c61\u53c2\u6570\u540c\u6837\u662f\u503c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[46],"tags":[43,140],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/656"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=656"}],"version-history":[{"count":1,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/656\/revisions"}],"predecessor-version":[{"id":659,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/656\/revisions\/659"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}