{"id":37833,"date":"2024-11-26T14:59:31","date_gmt":"2024-11-26T06:59:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37833\/"},"modified":"2024-11-26T14:59:31","modified_gmt":"2024-11-26T06:59:31","slug":"java%e7%94%a8list%e6%80%8e%e4%b9%88%e5%ad%98%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37833\/","title":{"rendered":"java\u7528list\u600e\u4e48\u5b58\u6570\u7ec4"},"content":{"rendered":"

\n java \u4e2d\u4f7f\u7528 list \u5b58\u50a8\u6570\u7ec4\uff1a\u4f7f\u7528 arraylist \u5b9e\u73b0\u7c7b\u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 list \u4e2d\uff0c\u4ece list \u83b7\u53d6\u6570\u7ec4\u3002\u793a\u4f8b\u4ee3\u7801\uff1a\u521b\u5efa list \u5bf9\u8c61\uff0c\u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 list\uff0c\u4ece list \u83b7\u53d6\u6570\u7ec4\u5e76\u904d\u5386\u8f93\u51fa\u3002\n<\/p><\/blockquote>\n

\"java\u7528list\u600e\u4e48\u5b58\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u4f7f\u7528 List \u5b58\u50a8\u6570\u7ec4<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 List \u63a5\u53e3\u53ca\u5176\u5b9e\u73b0\u7c7b\u6765\u5b58\u50a8\u6570\u7ec4\u3002\u6700\u5e38\u7528\u7684 List \u5b9e\u73b0\u7c7b\u662f ArrayList\u3002<\/p>\n

\u8981\u4f7f\u7528 List \u5b58\u50a8\u6570\u7ec4\uff0c\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \n

    \u521b\u5efa List \u5bf9\u8c61<\/strong><\/p>\n

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

    List<int[]> list = new ArrayList<>();<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  2. \n
    \u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 List<\/strong><\/p>\n
    int[] arr = {1, 2, 3};\nlist.add(arr);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  3. \n
    \u4ece List \u4e2d\u83b7\u53d6\u6570\u7ec4<\/strong><\/p>\n
    int[] arr = list.get(0);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n
    \u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n
    import java.util.ArrayList;\nimport java.util.List;\n\npublic class Main {\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa List \u5bf9\u8c61\n        List<int[]> list = new ArrayList<>();\n\n        \/\/ \u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 List\n        int[] arr1 = {1, 2, 3};\n        int[] arr2 = {4, 5, 6};\n        list.add(arr1);\n        list.add(arr2);\n\n        \/\/ \u4ece List \u4e2d\u83b7\u53d6\u6570\u7ec4\n        int[] arr = list.get(0);\n        for (int i : arr) {\n            System.out.println(i);\n        }\n    }\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8f93\u51fa\uff1a<\/strong><\/p>\n
    1\n2\n3<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u7528list\u600e\u4e48\u5b58\u6570\u7ec4\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 \u4e2d\u4f7f\u7528 list \u5b58\u50a8\u6570\u7ec4\uff1a\u4f7f\u7528 arraylist \u5b9e\u73b0\u7c7b\u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 list \u4e2d\uff0c\u4ece list \u83b7\u53d6\u6570\u7ec4\u3002\u793a\u4f8b\u4ee3\u7801\uff1a\u521b\u5efa list \u5bf9\u8c61\uff0c\u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 list\uff0c\u4ece list \u83b7\u53d6\u6570\u7ec4\u5e76\u904d\u5386\u8f93\u51fa\u3002 Java \u4e2d\u4f7f\u7528 List \u5b58\u50a8\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 List \u63a5\u53e3\u53ca\u5176\u5b9e\u73b0\u7c7b\u6765\u5b58\u50a8\u6570\u7ec4\u3002\u6700\u5e38\u7528\u7684 List \u5b9e\u73b0\u7c7b\u662f ArrayList\u3002 \u8981\u4f7f\u7528 List \u5b58\u50a8\u6570\u7ec4\uff0c\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u521b\u5efa List \u5bf9\u8c61 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b List<int[]> list = new ArrayList<>(); \u767b\u5f55\u540e\u590d\u5236 \u5c06\u6570\u7ec4\u6dfb\u52a0\u5230 List int[] arr = {1, 2, 3}; list.add(arr); \u767b\u5f55\u540e\u590d\u5236 \u4ece List \u4e2d\u83b7\u53d6\u6570\u7ec4 int[] arr […]<\/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-37833","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37833","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=37833"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37833\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}