{"id":36937,"date":"2024-11-26T14:56:33","date_gmt":"2024-11-26T06:56:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36937\/"},"modified":"2024-11-26T14:56:33","modified_gmt":"2024-11-26T06:56:33","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e5%8f%98%e9%95%bf","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36937\/","title":{"rendered":"Java\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u957f"},"content":{"rendered":"

\n java\u4e2d\u65e0\u6cd5\u76f4\u63a5\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff0c\u9700\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff1a\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u52a0\u4e0a\u6269\u5c55\u957f\u5ea6\u3002\u590d\u5236\u5143\u7d20\uff1a\u4f7f\u7528arraycopy\u65b9\u6cd5\u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u3002\u5f15\u7528\u65b0\u6570\u7ec4\uff1a\u66f4\u65b0\u6307\u5411\u65e7\u6570\u7ec4\u7684\u5f15\u7528\u4e3a\u6307\u5411\u65b0\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n

\"Java\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u957f\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u6269\u5c55\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n

\u95ee\u9898\uff1a<\/strong>Java\u4e2d\u5982\u4f55\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff1f<\/p>\n

\u56de\u7b54\uff1a<\/strong><\/p>\n

Java\u4e2d\u6570\u7ec4\u7684\u5927\u5c0f\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u76f4\u63a5\u6269\u5c55\u3002\u9700\u8981\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u5143\u7d20\u6765\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff1a<\/p>\n

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

\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \u521b\u5efa\u65b0\u6570\u7ec4\uff1a<\/strong>\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u52a0\u4e0a\u6269\u5c55\u957f\u5ea6\u3002<\/li>\n
  2. \u590d\u5236\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528System.arraycopy\u65b9\u6cd5\u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u590d\u5236\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u3002<\/li>\n
  3. \u5f15\u7528\u65b0\u6570\u7ec4\uff1a<\/strong>\u5c06\u6307\u5411\u65e7\u6570\u7ec4\u7684\u5f15\u7528\u66f4\u65b0\u4e3a\u6307\u5411\u65b0\u6570\u7ec4\u3002<\/li>\n<\/ol>\n

    \u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n

    int[] originalArray = {1, 2, 3, 4, 5};\nint extendedLength = 3;\n\n\/\/ \u521b\u5efa\u65b0\u6570\u7ec4\nint[] extendedArray = new int[originalArray.length + extendedLength];\n\n\/\/ \u590d\u5236\u5143\u7d20\nSystem.arraycopy(originalArray, 0, extendedArray, 0, originalArray.length);\n\n\/\/ \u66f4\u65b0\u5f15\u7528\noriginalArray = extendedArray;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6269\u5c55\u540e\uff0coriginalArray\u5f15\u7528\u5c06\u6307\u5411\u6269\u5c55\u540e\u7684\u6570\u7ec4\uff0c\u5176\u957f\u5ea6\u4e3a8\uff0c\u5305\u542b\u539f\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4ee5\u53ca3\u4e2a\u65b0\u5143\u7d20\u3002<\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u6269\u5c55\u957f\u5ea6\u5e94\u4e3a\u975e\u8d1f\u6574\u6570\u3002<\/li>\n
    • \u5982\u679c\u6269\u5c55\u6570\u7ec4\u540e\u9700\u8981\u7684\u5185\u5b58\u8d85\u8fc7Java\u865a\u62df\u673a\u5141\u8bb8\u7684\u6700\u5927\u503c\uff0c\u53ef\u80fd\u4f1a\u629b\u51faOutOfMemoryError\u5f02\u5e38\u3002<\/li>\n
    • \u590d\u5236\u64cd\u4f5c\u7684\u6548\u7387\u53ef\u80fd\u4f1a\u5f88\u4f4e\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u5927\u578b\u6570\u7ec4\u3002\u5efa\u8bae\u6839\u636e\u9700\u8981\u4e13\u95e8\u8bbe\u8ba1\u6570\u636e\u7ed3\u6784\u6216\u4f7f\u7528\u96c6\u5408\u7c7b\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fJava\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u957f\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\u65e0\u6cd5\u76f4\u63a5\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff0c\u9700\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff1a\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u52a0\u4e0a\u6269\u5c55\u957f\u5ea6\u3002\u590d\u5236\u5143\u7d20\uff1a\u4f7f\u7528arraycopy\u65b9\u6cd5\u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u3002\u5f15\u7528\u65b0\u6570\u7ec4\uff1a\u66f4\u65b0\u6307\u5411\u65e7\u6570\u7ec4\u7684\u5f15\u7528\u4e3a\u6307\u5411\u65b0\u6570\u7ec4\u3002 Java\u4e2d\u6269\u5c55\u6570\u7ec4\u957f\u5ea6 \u95ee\u9898\uff1aJava\u4e2d\u5982\u4f55\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff1f \u56de\u7b54\uff1a Java\u4e2d\u6570\u7ec4\u7684\u5927\u5c0f\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u76f4\u63a5\u6269\u5c55\u3002\u9700\u8981\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u539f\u6570\u7ec4\u5143\u7d20\u6765\u6269\u5c55\u6570\u7ec4\u957f\u5ea6\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6b65\u9aa4\uff1a \u521b\u5efa\u65b0\u6570\u7ec4\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u52a0\u4e0a\u6269\u5c55\u957f\u5ea6\u3002 \u590d\u5236\u5143\u7d20\uff1a\u4f7f\u7528System.arraycopy\u65b9\u6cd5\u5c06\u539f\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u590d\u5236\u957f\u5ea6\u4e3a\u539f\u6570\u7ec4\u957f\u5ea6\u3002 \u5f15\u7528\u65b0\u6570\u7ec4\uff1a\u5c06\u6307\u5411\u65e7\u6570\u7ec4\u7684\u5f15\u7528\u66f4\u65b0\u4e3a\u6307\u5411\u65b0\u6570\u7ec4\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a int[] originalArray = {1, 2, 3, 4, 5}; int extendedLength = 3; \/\/ \u521b\u5efa\u65b0\u6570\u7ec4 int[] extendedArray = new int[originalArray.length + extendedLength]; \/\/ \u590d\u5236\u5143\u7d20 System.arraycopy(originalArray, 0, extendedArray, 0, originalArray.length); \/\/ \u66f4\u65b0\u5f15\u7528 originalArray = extendedArray; \u767b\u5f55\u540e\u590d\u5236 \u6269\u5c55\u540e\uff0coriginalArray\u5f15\u7528\u5c06\u6307\u5411\u6269\u5c55\u540e\u7684\u6570\u7ec4\uff0c\u5176\u957f\u5ea6\u4e3a8\uff0c\u5305\u542b\u539f\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4ee5\u53ca3\u4e2a\u65b0\u5143\u7d20\u3002 \u6ce8\u610f\u4e8b\u9879\uff1a \u6269\u5c55\u957f\u5ea6\u5e94\u4e3a\u975e\u8d1f\u6574\u6570\u3002 \u5982\u679c\u6269\u5c55\u6570\u7ec4\u540e\u9700\u8981\u7684\u5185\u5b58\u8d85\u8fc7Java\u865a\u62df\u673a\u5141\u8bb8\u7684\u6700\u5927\u503c\uff0c\u53ef\u80fd\u4f1a\u629b\u51faOutOfMemoryError\u5f02\u5e38\u3002 \u590d\u5236\u64cd\u4f5c\u7684\u6548\u7387\u53ef\u80fd\u4f1a\u5f88\u4f4e\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u5927\u578b\u6570\u7ec4\u3002\u5efa\u8bae\u6839\u636e\u9700\u8981\u4e13\u95e8\u8bbe\u8ba1\u6570\u636e\u7ed3\u6784\u6216\u4f7f\u7528\u96c6\u5408\u7c7b\u3002 \u4ee5\u4e0a\u5c31\u662fJava\u600e\u4e48\u628a\u6570\u7ec4\u53d8\u957f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-36937","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36937","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=36937"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36937\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}