{"id":65667,"date":"2025-05-03T09:11:53","date_gmt":"2025-05-03T01:11:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65667\/"},"modified":"2025-05-03T09:11:53","modified_gmt":"2025-05-03T01:11:53","slug":"java%e6%80%8e%e4%b9%88%e8%87%aa%e5%ae%9a%e4%b9%89%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65667\/","title":{"rendered":"java\u600e\u4e48\u81ea\u5b9a\u4e49\u6570\u7ec4"},"content":{"rendered":"

\n java \u6570\u7ec4\u662f\u4e00\u79cd\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u3002\u81ea\u5b9a\u4e49 java \u6570\u7ec4\u7684\u65b9\u6cd5\u6709\uff1a\u624b\u52a8\u521d\u59cb\u5316\uff1a\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\uff0c\u5e76\u4f7f\u7528\u7d22\u5f15\u5206\u914d\u5143\u7d20\u503c\u3002\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u76f4\u63a5\u4e3a\u6570\u7ec4\u5143\u7d20\u5206\u914d\u503c\uff0c\u81ea\u52a8\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u591a\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528\u989d\u5916\u7684\u65b9\u62ec\u53f7\u6307\u5b9a\u7ef4\u5ea6\uff0c\u5e76\u4f7f\u7528\u5d4c\u5957\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\u3002\u6570\u7ec4\u7c7b\u578b\uff1ajava \u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u5177\u6709\u7c7b\u578b\uff0c\u53ef\u4f7f\u7528 getclass() \u65b9\u6cd5\u83b7\u53d6\u3002\u6570\u7ec4\u64cd\u4f5c\uff1ajava \u63d0\u4f9b\u4e86 length\u3001clone()\u3001sort() \u548c tostring() \u7b49\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u81ea\u5b9a\u4e49\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u81ea\u5b9a\u4e49 Java \u6570\u7ec4<\/strong><\/p>\n

Java \u6570\u7ec4\u662f\u4e00\u79cd\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u3002\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6570\u7ec4\u4ee5\u6ee1\u8db3\u7279\u5b9a\u9700\u6c42\uff0c\u4f8b\u5982\uff1a<\/p>\n

1. \u624b\u52a8\u521d\u59cb\u5316\u6570\u7ec4<\/strong><\/p>\n

\u8981\u624b\u52a8\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

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

int[] myArray = new int[size];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • myArray \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n
  • int \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n
  • size \u662f\u6570\u7ec4\u7684\u5927\u5c0f\uff08\u5373\u5143\u7d20\u7684\u6570\u91cf\uff09\u3002<\/li>\n<\/ul>\n
    \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u4e3a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u5206\u914d\u503c\uff1a<\/p>\n
    myArray[0] = 10;\nmyArray[1] = 20;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    2. \u6570\u7ec4\u521d\u59cb\u5316\u5668<\/strong><\/p>\n
    \u53e6\u4e00\u79cd\u81ea\u5b9a\u4e49\u6570\u7ec4\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a<\/p>\n
    int[] myArray = {10, 20, 30};<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6570\u7ec4\u521d\u59cb\u5316\u5668\u76f4\u63a5\u4e3a\u6570\u7ec4\u5143\u7d20\u5206\u914d\u503c\uff0c\u5e76\u81ea\u52a8\u786e\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/p>\n
    3. \u591a\u7ef4\u6570\u7ec4<\/strong><\/p>\n
    Java \u4e5f\u652f\u6301\u591a\u7ef4\u6570\u7ec4\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u989d\u5916\u7684\u65b9\u62ec\u53f7\u6307\u5b9a\u5b83\u4eec\u7684\u7ef4\u5ea6\uff1a<\/p>\n
    int[][] my2DArray = new int[3][4];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8fd9\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u6709 3 \u884c\u548c 4 \u5217\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\uff1a<\/p>\n
    my2DArray[0][0] = 100;\nmy2DArray[1][2] = 200;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    4. \u6570\u7ec4\u7c7b\u578b<\/strong><\/p>\n
    Java \u4e2d\u7684\u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u56e0\u6b64\u5b83\u4eec\u5177\u6709\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u7684\u7c7b\u578b\u4e3a int[]\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 getClass() \u65b9\u6cd5\u83b7\u53d6\u6570\u7ec4\u7684\u7c7b\u578b\uff1a<\/p>\n
    int[] myArray = {10, 20, 30};\nClass<?> arrayType = myArray.getClass();\nSystem.out.println(arrayType); \/\/ prints [I<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    5. \u6570\u7ec4\u64cd\u4f5c<\/strong><\/p>\n
    Java \u63d0\u4f9b\u4e86\u5404\u79cd\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a<\/p>\n
      \n
    • length \u83b7\u53d6\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/li>\n
    • clone() \u521b\u5efa\u6570\u7ec4\u7684\u4e00\u4e2a\u526f\u672c\u3002<\/li>\n
    • sort() \u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n
    • toString() \u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u81ea\u5b9a\u4e49\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      java \u6570\u7ec4\u662f\u4e00\u79cd\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u3002\u81ea\u5b9a\u4e49 java \u6570\u7ec4\u7684\u65b9\u6cd5\u6709\uff1a\u624b\u52a8\u521d\u59cb\u5316\uff1a\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\uff0c\u5e76\u4f7f\u7528\u7d22\u5f15\u5206\u914d\u5143\u7d20\u503c\u3002\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u76f4\u63a5\u4e3a\u6570\u7ec4\u5143\u7d20\u5206\u914d\u503c\uff0c\u81ea\u52a8\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u591a\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528\u989d\u5916\u7684\u65b9\u62ec\u53f7\u6307\u5b9a\u7ef4\u5ea6\uff0c\u5e76\u4f7f\u7528\u5d4c\u5957\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\u3002\u6570\u7ec4\u7c7b\u578b\uff1ajava \u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u5177\u6709\u7c7b\u578b\uff0c\u53ef\u4f7f\u7528 getclass() \u65b9\u6cd5\u83b7\u53d6\u3002\u6570\u7ec4\u64cd\u4f5c\uff1ajava \u63d0\u4f9b\u4e86 length\u3001clone()\u3001sort() \u548c tostring() \u7b49\u65b9\u6cd5\u6765\u64cd\u4f5c\u6570\u7ec4\u3002 \u5982\u4f55\u81ea\u5b9a\u4e49 Java \u6570\u7ec4 Java \u6570\u7ec4\u662f\u4e00\u79cd\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u3002\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6570\u7ec4\u4ee5\u6ee1\u8db3\u7279\u5b9a\u9700\u6c42\uff0c\u4f8b\u5982\uff1a 1. \u624b\u52a8\u521d\u59cb\u5316\u6570\u7ec4 \u8981\u624b\u52a8\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = new int[size]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a myArray \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002 int \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002 size \u662f\u6570\u7ec4\u7684\u5927\u5c0f\uff08\u5373\u5143\u7d20\u7684\u6570\u91cf\uff09\u3002 \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u4e3a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u5206\u914d\u503c\uff1a myArray[0] = 10; myArray[1] = 20; \u767b\u5f55\u540e\u590d\u5236 2. \u6570\u7ec4\u521d\u59cb\u5316\u5668 \u53e6\u4e00\u79cd\u81ea\u5b9a\u4e49\u6570\u7ec4\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a int[] myArray = {10, 20, 30}; \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u521d\u59cb\u5316\u5668\u76f4\u63a5\u4e3a\u6570\u7ec4\u5143\u7d20\u5206\u914d\u503c\uff0c\u5e76\u81ea\u52a8\u786e\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002 […]<\/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-65667","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65667","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=65667"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65667\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}