{"id":65990,"date":"2025-05-03T09:24:12","date_gmt":"2025-05-03T01:24:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65990\/"},"modified":"2025-05-03T09:24:12","modified_gmt":"2025-05-03T01:24:12","slug":"java%e6%80%8e%e4%b9%88%e6%96%b0%e5%bb%ba%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65990\/","title":{"rendered":"java\u600e\u4e48\u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4"},"content":{"rendered":"

\n \u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string[] \u6570\u7ec4\uff1a\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f\u548c\u5143\u7d20\u503c\u3002\u4f7f\u7528 arraylist\uff1a\u521b\u5efa\u52a8\u6001\u6570\u7ec4\uff0c\u53ef\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 Java \u65b0\u5efa<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u4e3b\u8981\u6709\u4e24\u79cd\u5e38\u7528\u65b9\u5f0f\uff1a<\/p>\n

1. \u4f7f\u7528 String[] \u6570\u7ec4\uff1a<\/strong><\/p>\n

String[] countries = new String[5];\n\n\/\/ \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u503c\ncountries[0] = \"\u65e5\u672c\";\ncountries[1] = \"\u4e2d\u56fd\";<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u957f\u5ea6\u4e3a 5 \u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5143\u7d20\u7684\u9ed8\u8ba4\u503c\u4e3a null\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
2. \u4f7f\u7528 ArrayList \uff1a <\/strong><\/p>\n
ArrayList<String> countries = new ArrayList<>();\n\n\/\/ \u6dfb\u52a0\u5143\u7d20\u5230\u6570\u7ec4\ncountries.add(\"\u65e5\u672c\");\ncountries.add(\"\u4e2d\u56fd\");<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u52a8\u6001\u6570\u7ec4\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/p>\n
\u793a\u4f8b\uff1a<\/strong><\/p>\n
\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u8fd9\u4e24\u79cd\u65b9\u6cd5\u521b\u5efa\u5e76\u8f93\u51fa\u4e00\u4e2a\u5305\u542b\u56fd\u5bb6\u540d\u79f0\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a<\/p>\n
public class Main {\n    public static void main(String[] args) {\n        \/\/ \u4f7f\u7528 String[] \u6570\u7ec4\n        String[] countries = new String[5];\n        countries[0] = \"\u65e5\u672c\";\n        countries[1] = \"\u4e2d\u56fd\";\n\n        \/\/ \u4f7f\u7528 ArrayList<String>\n        ArrayList<String> countries2 = new ArrayList<>();\n        countries2.add(\"\u65e5\u672c\");\n        countries2.add(\"\u4e2d\u56fd\");\n\n        \/\/ \u8f93\u51fa\u6570\u7ec4\n        for (String country : countries) {\n            System.out.println(country);\n        }\n\n        for (String country : countries2) {\n            System.out.println(country);\n        }\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
\u65e5\u672c\n\u4e2d\u56fd\n\u65e5\u672c\n\u4e2d\u56fd<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u65b0\u5efa\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string[] \u6570\u7ec4\uff1a\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f\u548c\u5143\u7d20\u503c\u3002\u4f7f\u7528 arraylist\uff1a\u521b\u5efa\u52a8\u6001\u6570\u7ec4\uff0c\u53ef\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002 \u5982\u4f55\u4f7f\u7528 Java \u65b0\u5efa \u5728 Java \u4e2d\uff0c\u65b0\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u4e3b\u8981\u6709\u4e24\u79cd\u5e38\u7528\u65b9\u5f0f\uff1a 1. \u4f7f\u7528 String[] \u6570\u7ec4\uff1a String[] countries = new String[5]; \/\/ \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u503c countries[0] = “\u65e5\u672c”; countries[1] = “\u4e2d\u56fd”; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u79cd\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u957f\u5ea6\u4e3a 5 \u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5143\u7d20\u7684\u9ed8\u8ba4\u503c\u4e3a null\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u4f7f\u7528 ArrayList \uff1a ArrayList<String> countries = new ArrayList<>(); \/\/ \u6dfb\u52a0\u5143\u7d20\u5230\u6570\u7ec4 countries.add(“\u65e5\u672c”); countries.add(“\u4e2d\u56fd”); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u79cd\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u52a8\u6001\u6570\u7ec4\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002 \u793a\u4f8b\uff1a \u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u8fd9\u4e24\u79cd\u65b9\u6cd5\u521b\u5efa\u5e76\u8f93\u51fa\u4e00\u4e2a\u5305\u542b\u56fd\u5bb6\u540d\u79f0\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a public class Main { public […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65990","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65990"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65990\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}