{"id":38562,"date":"2024-11-26T14:34:39","date_gmt":"2024-11-26T06:34:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38562\/"},"modified":"2024-11-26T14:34:39","modified_gmt":"2024-11-26T06:34:39","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e5%80%bc%e6%94%be%e5%88%b0%e6%95%b0%e7%bb%84%e9%87%8c%e9%9d%a2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38562\/","title":{"rendered":"java\u600e\u4e48\u628a\u503c\u653e\u5230\u6570\u7ec4\u91cc\u9762"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u5728\u58f0\u660e\u65f6\u76f4\u63a5\u521d\u59cb\u5316\u6570\u7ec4\u3002\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\uff0c\u901a\u8fc7\u521b\u5efa\u6570\u7ec4\u3001\u786e\u5b9a\u5927\u5c0f\u3001\u8bbf\u95ee\u7d22\u5f15\u548c\u8d4b\u503c\u6765\u52a8\u6001\u64cd\u4f5c\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111503151646743.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u503c\u653e\u5230\u6570\u7ec4\u91cc\u9762\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u503c\u653e\u5230\u6570\u7ec4\u91cc\u9762\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c<\/strong><\/p>\n<p>Java \u6570\u7ec4\u662f\u6309\u7d22\u5f15\u987a\u5e8f\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u96c6\u5408\u3002\u8981\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c\uff0c\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668<\/strong><\/p>\n<p>\u6570\u7ec4\u521d\u59cb\u5316\u5668\u662f\u4e00\u79cd\u5728\u58f0\u660e\u6570\u7ec4\u65f6\u76f4\u63a5\u521d\u59cb\u5316\u5b83\u7684\u7b80\u4fbf\u65b9\u6cd5\u3002\u5143\u7d20\u4ee5\u9017\u53f7\u5206\u9694\u5217\u5728\u65b9\u62ec\u53f7\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61<\/strong><\/p>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\u6765\u52a8\u6001\u5206\u914d\u548c\u64cd\u4f5c\u6570\u7ec4\u3002\u8981\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li> <strong>\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a<\/strong>\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u5bf9\u8c61\u3002<\/li>\n<li> <strong>\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff1a<\/strong>\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n<li> <strong>\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\uff1a<\/strong>\u4f7f\u7528\u7d22\u5f15\u503c\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<li> <strong>\u8d4b\u503c\uff1a<\/strong>\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u5c06\u503c\u5206\u914d\u7ed9\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<\/ol>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = new int[5];\nnumbers[0] = 1;\nnumbers[1] = 2;\nnumbers[2] = 3;\nnumbers[3] = 4;\nnumbers[4] = 5;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u7684\u957f\u5ea6\u4e00\u65e6\u521b\u5efa\u5c31\u65e0\u6cd5\u66f4\u6539\u3002<\/li>\n<li>\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\u5c06\u5bfc\u81f4 ArrayIndexOutOfBoundsException\u3002<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u539f\u59cb\u6570\u7ec4\u7684\u65b0\u526f\u672c\uff0c\u5e76\u6269\u5c55\u6216\u7f29\u5c0f\u5176\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u503c\u653e\u5230\u6570\u7ec4\u91cc\u9762\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":"<p>\u5728 java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u5728\u58f0\u660e\u65f6\u76f4\u63a5\u521d\u59cb\u5316\u6570\u7ec4\u3002\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\uff0c\u901a\u8fc7\u521b\u5efa\u6570\u7ec4\u3001\u786e\u5b9a\u5927\u5c0f\u3001\u8bbf\u95ee\u7d22\u5f15\u548c\u8d4b\u503c\u6765\u52a8\u6001\u64cd\u4f5c\u6570\u7ec4\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c Java \u6570\u7ec4\u662f\u6309\u7d22\u5f15\u987a\u5e8f\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u96c6\u5408\u3002\u8981\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c\uff0c\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668 \u6570\u7ec4\u521d\u59cb\u5316\u5668\u662f\u4e00\u79cd\u5728\u58f0\u660e\u6570\u7ec4\u65f6\u76f4\u63a5\u521d\u59cb\u5316\u5b83\u7684\u7b80\u4fbf\u65b9\u6cd5\u3002\u5143\u7d20\u4ee5\u9017\u53f7\u5206\u9694\u5217\u5728\u65b9\u62ec\u53f7\u4e2d\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61 \u4e5f\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\u6765\u52a8\u6001\u5206\u914d\u548c\u64cd\u4f5c\u6570\u7ec4\u3002\u8981\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u5bf9\u8c61\u3002 \u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff1a\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\uff1a\u4f7f\u7528\u7d22\u5f15\u503c\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002 \u8d4b\u503c\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u5c06\u503c\u5206\u914d\u7ed9\u6570\u7ec4\u5143\u7d20\u3002 \u4f8b\u5982\uff1a int[] numbers = new int[5]; numbers[0] = 1; numbers[1] = 2; numbers[2] = 3; numbers[3] = 4; numbers[4] = 5; 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