{"id":66010,"date":"2025-05-03T15:55:21","date_gmt":"2025-05-03T07:55:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66010\/"},"modified":"2025-05-03T15:55:21","modified_gmt":"2025-05-03T07:55:21","slug":"java%e6%80%8e%e4%b9%88%e5%be%80%e6%95%b0%e7%bb%84%e9%87%8c%e5%8a%a0%e6%96%87%e5%ad%97-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66010\/","title":{"rendered":"java\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u52a0\u6587\u5b57"},"content":{"rendered":"

\n \u5728 java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u521d\u59cb\u5316\u3001\u8d4b\u503c\u3001\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u3001\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u6216\u4f7f\u7528 arraylist \u6765\u5411\u6570\u7ec4\u6dfb\u52a0\u5b57\u7b26\u4e32\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u52a0\u6587\u5b57\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u5b57\u7b26\u4e32<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5b57\u7b26\u4e32\u6709\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

1. \u6570\u7ec4\u521d\u59cb\u5316<\/strong><\/p>\n

\u5728\u521d\u59cb\u5316\u6570\u7ec4\u65f6\uff0c\u76f4\u63a5\u6307\u5b9a\u5b57\u7b26\u4e32\u5143\u7d20\uff1a<\/p>\n

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

String[] names = {\"John\", \"Mary\", \"Bob\"};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u6570\u7ec4\u8d4b\u503c<\/strong><\/p>\n
\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u76f4\u63a5\u8d4b\u503c\u5b57\u7b26\u4e32\uff1a<\/p>\n
String[] names = new String[3];\nnames[0] = \"John\";\nnames[1] = \"Mary\";\nnames[2] = \"Bob\";<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u4f7f\u7528 Arrays.fill()<\/strong><\/p>\n
\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u7528\u6307\u5b9a\u5b57\u7b26\u4e32\u586b\u5145\u6570\u7ec4\uff1a<\/p>\n
String[] names = new String[3];\nArrays.fill(names, \"John\");<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
4. \u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n
\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\u4ece\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5b57\u7b26\u4e32\uff1a<\/p>\n
String[] names1 = {\"John\", \"Mary\", \"Bob\"};\nString[] names2 = new String[3];\nSystem.arraycopy(names1, 0, names2, 0, 3);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
5. \u4f7f\u7528 ArrayList<\/strong><\/p>\n
\u4f7f\u7528 ArrayList\uff0c\u5b83\u662f\u4e00\u4e2a\u53ef\u53d8\u957f\u5ea6\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u52a8\u6001\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\uff1a<\/p>\n
ArrayList<String> names = new ArrayList<>();\nnames.add(\"John\");\nnames.add(\"Mary\");\nnames.add(\"Bob\");<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • Java \u6570\u7ec4\u7684\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u56e0\u6b64\u5728\u5411\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5206\u914d\u597d\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/li>\n
  • \u5982\u679c\u9700\u8981\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u591a\u4e2a\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6216 Arrays.fill() \u65b9\u6cd5\u3002<\/li>\n
  • ArrayList \u53ef\u4ee5\u81ea\u52a8\u6269\u5bb9\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u624b\u52a8\u7ba1\u7406\u6570\u7ec4\u5927\u5c0f\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u52a0\u6587\u5b57\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u521d\u59cb\u5316\u3001\u8d4b\u503c\u3001\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u3001\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u6216\u4f7f\u7528 arraylist \u6765\u5411\u6570\u7ec4\u6dfb\u52a0\u5b57\u7b26\u4e32\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u5b57\u7b26\u4e32 \u5728 Java \u4e2d\uff0c\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5b57\u7b26\u4e32\u6709\u51e0\u79cd\u65b9\u6cd5\uff1a 1. \u6570\u7ec4\u521d\u59cb\u5316 \u5728\u521d\u59cb\u5316\u6570\u7ec4\u65f6\uff0c\u76f4\u63a5\u6307\u5b9a\u5b57\u7b26\u4e32\u5143\u7d20\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] names = {“John”, “Mary”, “Bob”}; \u767b\u5f55\u540e\u590d\u5236 2. \u6570\u7ec4\u8d4b\u503c \u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u76f4\u63a5\u8d4b\u503c\u5b57\u7b26\u4e32\uff1a String[] names = new String[3]; names[0] = “John”; names[1] = “Mary”; names[2] = “Bob”; \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528 Arrays.fill() \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u7528\u6307\u5b9a\u5b57\u7b26\u4e32\u586b\u5145\u6570\u7ec4\uff1a String[] names = new String[3]; […]<\/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-66010","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66010","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=66010"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66010\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}