{"id":37050,"date":"2024-11-26T17:46:24","date_gmt":"2024-11-26T09:46:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37050\/"},"modified":"2024-11-26T17:46:24","modified_gmt":"2024-11-26T09:46:24","slug":"java-%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e6%95%b0%e7%bb%84%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37050\/","title":{"rendered":"java \u600e\u4e48\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61"},"content":{"rendered":"

\n \u5728 java \u4e2d\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a\u5b9a\u4e49\u6570\u7ec4\u7c7b\u578b\u548c\u6570\u7ec4\u53d8\u91cf\u540d\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\u5206\u914d\u5185\u5b58\u5e76\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bbf\u95ee\u5143\u7d20\u3002\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002\u6570\u7ec4\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u8be5\u7c7b\u578b\u7684\u9ed8\u8ba4\u503c\u6216 null\u3002\n<\/p><\/blockquote>\n

\"java<\/p>\n

Java \u4e2d\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a<\/p>\n

\u6570\u636e\u7c7b\u578b[] \u53d8\u91cf\u540d = new \u6570\u636e\u7c7b\u578b[\u5927\u5c0f];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  •  \u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002\u5982 int\u3001double\u3001String \u7b49\u3002<\/li>\n
  •  \u53d8\u91cf\u540d\uff1a<\/strong>\u6570\u7ec4\u53d8\u91cf\u7684\u540d\u79f0\u3002<\/li>\n
  •  \u5927\u5c0f\uff1a<\/strong>\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \u521b\u5efa\u957f\u5ea6\u4e3a 5 \u7684\u6574\u6570\u6570\u7ec4\uff1a<\/p>\n
    int[] numbers = new int[5];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u521b\u5efa\u957f\u5ea6\u4e3a 10 \u7684\uff1a<\/p>\n
    String[] names = new String[10];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6570\u7ec4\u7d22\u5f15\uff1a<\/strong><\/p>\n
    \u60a8\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u65b9\u62ec\u53f7\uff08[]\uff09\u6307\u5b9a\u7d22\u5f15\uff1a<\/p>\n
    int firstNumber = numbers[0];  \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u6570\u5b57\nString lastString = names[9];  \/\/ \u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u4e32<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
      \n
    • \u6570\u7ec4\u5927\u5c0f\u4e00\u65e6\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002<\/li>\n
    • \u6570\u7ec4\u7d22\u5f15\u5e94\u5c0f\u4e8e\u6570\u7ec4\u5927\u5c0f\uff0c\u5426\u5219\u4f1a\u4ea7\u751f\u6570\u7ec4\u7d22\u5f15\u8d8a\u754c\u5f02\u5e38\u3002<\/li>\n
    • \u6570\u7ec4\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u8be5\u7c7b\u578b\u7684\u9ed8\u8ba4\u503c\uff08\u5bf9\u4e8e\u539f\u59cb\u7c7b\u578b\u6216 null \u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\uff09\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\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":"
      \u5728 java \u4e2d\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a\u5b9a\u4e49\u6570\u7ec4\u7c7b\u578b\u548c\u6570\u7ec4\u53d8\u91cf\u540d\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\u5206\u914d\u5185\u5b58\u5e76\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bbf\u95ee\u5143\u7d20\u3002\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002\u6570\u7ec4\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u8be5\u7c7b\u578b\u7684\u9ed8\u8ba4\u503c\u6216 null\u3002 Java \u4e2d\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61 \u5728 Java \u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a \u6570\u636e\u7c7b\u578b[] \u53d8\u91cf\u540d = new \u6570\u636e\u7c7b\u578b[\u5927\u5c0f]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u6570\u636e\u7c7b\u578b\uff1a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002\u5982 int\u3001double\u3001String \u7b49\u3002 \u53d8\u91cf\u540d\uff1a\u6570\u7ec4\u53d8\u91cf\u7684\u540d\u79f0\u3002 \u5927\u5c0f\uff1a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u957f\u5ea6\u4e3a 5 \u7684\u6574\u6570\u6570\u7ec4\uff1a int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u521b\u5efa\u957f\u5ea6\u4e3a 10 \u7684\uff1a String[] names = new String[10]; \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u7d22\u5f15\uff1a \u60a8\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u65b9\u62ec\u53f7\uff08[]\uff09\u6307\u5b9a\u7d22\u5f15\uff1a int firstNumber = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u6570\u5b57 […]<\/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-37050","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37050","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=37050"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37050\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}