{"id":65206,"date":"2025-05-03T13:12:31","date_gmt":"2025-05-03T05:12:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65206\/"},"modified":"2025-05-03T13:12:31","modified_gmt":"2025-05-03T05:12:31","slug":"java%e6%80%8e%e4%b9%88%e5%a3%b0%e6%98%8e%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65206\/","title":{"rendered":"java\u600e\u4e48\u58f0\u660e\u6570\u7ec4"},"content":{"rendered":"

\n java \u4e2d\u5982\u4f55\u58f0\u660e\u6570\u7ec4\uff1f\u6307\u5b9a\u6570\u636e\u7c7b\u578b\uff1a\u6307\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002\u5b9a\u4e49\u6570\u7ec4\u540d\uff1a\u4e3a\u6570\u7ec4\u6307\u5b9a\u4e00\u4e2a\u540d\u79f0\u3002\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff0c\u5e76\u4e3a\u5176\u5206\u914d\u6307\u5b9a\u957f\u5ea6\u7684\u5185\u5b58\u7a7a\u95f4\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u58f0\u660e\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u5982\u4f55\u58f0\u660e\u6570\u7ec4<\/strong><\/p>\n

\u4ecb\u7ecd\uff1a<\/strong>
\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u4e00\u7cfb\u5217\u5143\u7d20\u3002\u58f0\u660e\u6570\u7ec4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

<\u6570\u636e\u7c7b\u578b> <\u6570\u7ec4\u540d>[] = new <\u6570\u636e\u7c7b\u578b>[\u957f\u5ea6];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b65\u9aa4\uff1a<\/strong><\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \n
  1.  \u6307\u5b9a\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u6307\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982 int\u3001double\u3001String \u7b49\u3002<\/li>\n
  2.  \u5b9a\u4e49\u6570\u7ec4\u540d\uff1a<\/strong>\u4e3a\u6570\u7ec4\u6307\u5b9a\u4e00\u4e2a\u540d\u79f0\uff0c\u5b83\u5c06\u6807\u8bc6\u8be5\u6570\u7ec4\u3002<\/li>\n
  3.  \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a<\/strong>\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff0c\u5e76\u4e3a\u5176\u5206\u914d\u6307\u5b9a\u957f\u5ea6\u7684\u5185\u5b58\u7a7a\u95f4\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u58f0\u660e\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u5143\u7d20\u7684\u6570\u7ec4\uff1a<\/p>\n
    int[] myArray = new int[5];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u58f0\u660e\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 10 \u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u6570\u7ec4\uff1a<\/p>\n
    String[] myStringArray = new String[10];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6570\u7ec4\u957f\u5ea6\uff1a<\/strong><\/p>\n
    \u6570\u7ec4\u7684\u957f\u5ea6\u5728\u521b\u5efa\u540e\u65e0\u6cd5\u66f4\u6539\u3002\u8981\u786e\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\uff1a<\/p>\n
    int arrayLength = myArray.length;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6570\u7ec4\u5143\u7d20\u8bbf\u95ee\uff1a<\/strong><\/p>\n
    \u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u53f7\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n
    myArray[2] = 10; \/\/ \u8bbe\u7f6e\u6570\u7ec4\u4e2d\u7b2c\u4e09\u4e2a\u5143\u7d20\u4e3a 10<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    int element = myArray[2]; \/\/ \u83b7\u53d6\u6570\u7ec4\u4e2d\u7b2c\u4e09\u4e2a\u5143\u7d20<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u58f0\u660e\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 \u4e2d\u5982\u4f55\u58f0\u660e\u6570\u7ec4\uff1f\u6307\u5b9a\u6570\u636e\u7c7b\u578b\uff1a\u6307\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002\u5b9a\u4e49\u6570\u7ec4\u540d\uff1a\u4e3a\u6570\u7ec4\u6307\u5b9a\u4e00\u4e2a\u540d\u79f0\u3002\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff0c\u5e76\u4e3a\u5176\u5206\u914d\u6307\u5b9a\u957f\u5ea6\u7684\u5185\u5b58\u7a7a\u95f4\u3002 Java \u4e2d\u5982\u4f55\u58f0\u660e\u6570\u7ec4 \u4ecb\u7ecd\uff1a\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u4e00\u7cfb\u5217\u5143\u7d20\u3002\u58f0\u660e\u6570\u7ec4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a \u8bed\u6cd5\uff1a <\u6570\u636e\u7c7b\u578b> <\u6570\u7ec4\u540d>[] = new <\u6570\u636e\u7c7b\u578b>[\u957f\u5ea6]; \u767b\u5f55\u540e\u590d\u5236 \u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6307\u5b9a\u6570\u636e\u7c7b\u578b\uff1a\u6307\u5b9a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4f8b\u5982 int\u3001double\u3001String \u7b49\u3002 \u5b9a\u4e49\u6570\u7ec4\u540d\uff1a\u4e3a\u6570\u7ec4\u6307\u5b9a\u4e00\u4e2a\u540d\u79f0\uff0c\u5b83\u5c06\u6807\u8bc6\u8be5\u6570\u7ec4\u3002 \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff0c\u5e76\u4e3a\u5176\u5206\u914d\u6307\u5b9a\u957f\u5ea6\u7684\u5185\u5b58\u7a7a\u95f4\u3002 \u793a\u4f8b\uff1a \u58f0\u660e\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u5143\u7d20\u7684\u6570\u7ec4\uff1a int[] myArray = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u58f0\u660e\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 10 \u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u6570\u7ec4\uff1a String[] myStringArray = new String[10]; \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u957f\u5ea6\uff1a \u6570\u7ec4\u7684\u957f\u5ea6\u5728\u521b\u5efa\u540e\u65e0\u6cd5\u66f4\u6539\u3002\u8981\u786e\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\uff1a int arrayLength = myArray.length; \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u5143\u7d20\u8bbf\u95ee\uff1a \u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u53f7\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a […]<\/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-65206","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65206","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=65206"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65206\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}