{"id":34566,"date":"2024-11-26T16:02:30","date_gmt":"2024-11-26T08:02:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34566\/"},"modified":"2024-11-26T16:02:30","modified_gmt":"2024-11-26T08:02:30","slug":"java%e6%b3%9b%e5%9e%8b%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%94%b9%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34566\/","title":{"rendered":"java\u6cdb\u578b\u6570\u7ec4\u600e\u4e48\u6539\u5143\u7d20"},"content":{"rendered":"

\n java \u6cdb\u578b\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u5143\u7d20\u7c7b\u578b\u3002\u4f46\u6709\u53d8\u901a\u65b9\u6cd5\uff1a\u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\uff0c\u4fee\u6539\u540e\u5931\u53bb\u7c7b\u578b\u5b89\u5168\u3002\u590d\u5236\u5230\u65b0\u6570\u7ec4\uff0c\u53ef\u4ee5\u662f\u6cdb\u578b\u6216\u975e\u6cdb\u578b\u6570\u7ec4\u3002\u4f7f\u7528 java 8 \u6d41\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u6d41\u540e\u4fee\u6539\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u6cdb\u578b\u6570\u7ec4\u600e\u4e48\u6539\u5143\u7d20\u63d2\u56fe\"<\/p>\n

Java \u6cdb\u578b\u6570\u7ec4\u5982\u4f55\u4fee\u6539\u5143\u7d20<\/strong><\/p>\n

Java \u4e2d\u7684\u6cdb\u578b\u6570\u7ec4\u662f\u4e00\u7ec4\u5177\u6709\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u4e0d\u50cf\u666e\u901a\u6570\u7ec4\uff0c\u6cdb\u578b\u6570\u7ec4\u7684\u7c7b\u578b\u5728\u521b\u5efa\u65f6\u6307\u5b9a\uff0c\u5e76\u4e14\u5728\u6570\u7ec4\u751f\u547d\u5468\u671f\u5185\u4e0d\u80fd\u4fee\u6539\u3002\u56e0\u6b64\uff0c\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u6cdb\u578b\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/p>\n

\u4f46\u662f\uff0c\u6709\u53d8\u901a\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff1a<\/p>\n

1. \u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u53ef\u4ee5\u5c06\u6cdb\u578b\u6570\u7ec4\u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\uff0c\u7136\u540e\u8fdb\u884c\u4fee\u6539\u3002\u4f46\u662f\uff0c\u8fd9\u6837\u505a\u4f1a\u5931\u53bb\u7c7b\u578b\u5b89\u5168\uff0c\u56e0\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\u53ef\u4ee5\u5bb9\u7eb3\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002<\/p>\n

Integer[] numbers = {1, 2, 3};\nObject[] objects = numbers; \/\/ \u8f6c\u6362\u6cdb\u578b\u6570\u7ec4\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\nobjects[1] = \"Hello\"; \/\/ \u4fee\u6539\u975e\u6cdb\u578b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u590d\u5236\u5230\u65b0\u6570\u7ec4<\/strong><\/p>\n
\u53ef\u4ee5\u5c06\u6cdb\u578b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\uff0c\u5176\u4e2d\u65b0\u6570\u7ec4\u5177\u6709\u6240\u9700\u7684\u7c7b\u578b\u3002\u65b0\u6570\u7ec4\u53ef\u4ee5\u662f\u6cdb\u578b\u6570\u7ec4\u6216\u975e\u6cdb\u578b\u6570\u7ec4\u3002<\/p>\n
List<Integer> numbers = Arrays.asList(1, 2, 3);\nString[] strings = new String[numbers.size()]; \/\/ \u521b\u5efa\u65b0\u6570\u7ec4\nfor (int i = 0; i < numbers.size(); i++) {\n  strings[i] = numbers.get(i).toString(); \/\/ \u590d\u5236\u5143\u7d20\u5230\u65b0\u6570\u7ec4\u4e2d\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u4f7f\u7528 Java 8 \u6d41<\/strong><\/p>\n
Java 8 \u6d41\u63d0\u4f9b\u4e86\u66f4\u4f18\u96c5\u7684\u65b9\u6cd5\u6765\u4fee\u6539\u6cdb\u578b\u6570\u7ec4\u4e2d\u5143\u7d20\u3002\u6d41\u53ef\u4ee5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u6d41\uff0c\u5e76\u5e94\u7528\u6620\u5c04\u51fd\u6570\u6765\u4fee\u6539\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/p>\n
Integer[] numbers = {1, 2, 3};\nString[] strings = Arrays.stream(numbers)\n  .map(Object::toString) \/\/ \u5c06\u6570\u5b57\u6620\u5c04\u4e3a\u5b57\u7b26\u4e32\n  .toArray(String[]::new); \/\/ \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0a\u8ff0\u65b9\u6cd5\u90fd\u53ef\u4ee5\u4fee\u6539\u6cdb\u578b\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u7279\u5b9a\u7684\u60c5\u51b5\u548c\u9700\u8981\u8003\u8651\u7684\u6743\u8861\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u6cdb\u578b\u6570\u7ec4\u600e\u4e48\u6539\u5143\u7d20\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java \u6cdb\u578b\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u5143\u7d20\u7c7b\u578b\u3002\u4f46\u6709\u53d8\u901a\u65b9\u6cd5\uff1a\u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\uff0c\u4fee\u6539\u540e\u5931\u53bb\u7c7b\u578b\u5b89\u5168\u3002\u590d\u5236\u5230\u65b0\u6570\u7ec4\uff0c\u53ef\u4ee5\u662f\u6cdb\u578b\u6216\u975e\u6cdb\u578b\u6570\u7ec4\u3002\u4f7f\u7528 java 8 \u6d41\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u6d41\u540e\u4fee\u6539\u5143\u7d20\u3002 Java \u6cdb\u578b\u6570\u7ec4\u5982\u4f55\u4fee\u6539\u5143\u7d20 Java \u4e2d\u7684\u6cdb\u578b\u6570\u7ec4\u662f\u4e00\u7ec4\u5177\u6709\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u4e0d\u50cf\u666e\u901a\u6570\u7ec4\uff0c\u6cdb\u578b\u6570\u7ec4\u7684\u7c7b\u578b\u5728\u521b\u5efa\u65f6\u6307\u5b9a\uff0c\u5e76\u4e14\u5728\u6570\u7ec4\u751f\u547d\u5468\u671f\u5185\u4e0d\u80fd\u4fee\u6539\u3002\u56e0\u6b64\uff0c\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u6cdb\u578b\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002 \u4f46\u662f\uff0c\u6709\u53d8\u901a\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff1a 1. \u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53ef\u4ee5\u5c06\u6cdb\u578b\u6570\u7ec4\u8f6c\u6362\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\uff0c\u7136\u540e\u8fdb\u884c\u4fee\u6539\u3002\u4f46\u662f\uff0c\u8fd9\u6837\u505a\u4f1a\u5931\u53bb\u7c7b\u578b\u5b89\u5168\uff0c\u56e0\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4\u53ef\u4ee5\u5bb9\u7eb3\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002 Integer[] numbers = {1, 2, 3}; Object[] objects = numbers; \/\/ \u8f6c\u6362\u6cdb\u578b\u6570\u7ec4\u4e3a\u975e\u6cdb\u578b\u6570\u7ec4 objects[1] = “Hello”; \/\/ \u4fee\u6539\u975e\u6cdb\u578b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20 \u767b\u5f55\u540e\u590d\u5236 2. \u590d\u5236\u5230\u65b0\u6570\u7ec4 \u53ef\u4ee5\u5c06\u6cdb\u578b\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\uff0c\u5176\u4e2d\u65b0\u6570\u7ec4\u5177\u6709\u6240\u9700\u7684\u7c7b\u578b\u3002\u65b0\u6570\u7ec4\u53ef\u4ee5\u662f\u6cdb\u578b\u6570\u7ec4\u6216\u975e\u6cdb\u578b\u6570\u7ec4\u3002 List<Integer> numbers = Arrays.asList(1, 2, 3); String[] strings = new String[numbers.size()]; \/\/ \u521b\u5efa\u65b0\u6570\u7ec4 for (int i = 0; i < […]<\/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-34566","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34566","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=34566"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34566\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}