{"id":65632,"date":"2025-05-03T14:30:41","date_gmt":"2025-05-03T06:30:41","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65632\/"},"modified":"2025-05-03T14:30:41","modified_gmt":"2025-05-03T06:30:41","slug":"java%e6%80%8e%e4%b9%88%e7%bb%99int%e6%95%b0%e7%bb%84%e8%b5%8b%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65632\/","title":{"rendered":"java\u600e\u4e48\u7ed9int\u6570\u7ec4\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u9010\u4e2a\u8d4b\u503c\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u4e3a\u6570\u7ec4\u5143\u7d20\u9010\u4e2a\u5206\u914d\u503c\u3002\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u5728\u58f0\u660e\u65f6\u4e3a\u6570\u7ec4\u8d4b\u503c\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1a\u5c06\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a\u6307\u5b9a\u7684\u503c\u3002\u901a\u8fc7\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u8d4b\u503c\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111306001879690.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7ed9int\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7ed9int\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<h2>\u5982\u4f55\u5728 Java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c<\/h2>\n<h3>Java \u6570\u7ec4\u8d4b\u503c\u65b9\u6cd5<\/h3>\n<p>\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 Java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c\uff1a<\/p>\n<h3>\u9010\u4e2a\u8d4b\u503c<\/h3>\n<p>\u9010\u4e2a\u8d4b\u503c\u6d89\u53ca\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08=\uff09\u4e3a\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u4e00\u4e2a\u503c\u3002<\/p>\n<pre>int[] arr = new int[5];\narr[0] = 1;\narr[1] = 2;\n...\narr[4] = 5;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<h3>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668<\/h3>\n<p>\u6570\u7ec4\u521d\u59cb\u5316\u5668\u5141\u8bb8\u60a8\u5728\u58f0\u660e\u65f6\u4e3a\u6570\u7ec4\u8d4b\u503c\u3002\u8fd9\u662f\u5c06\u503c\u5206\u914d\u7ed9\u6570\u7ec4\u6700\u7b80\u6d01\u7684\u65b9\u6cd5\u3002<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<h3>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5<\/h3>\n<p>Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a\u6307\u5b9a\u7684\u503c\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = new int[5];\nArrays.fill(arr, 7); \/\/ \u5c06\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a 7<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<h3>\u901a\u8fc7\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u8d4b\u503c<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\u901a\u8fc7\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e3a int \u6570\u7ec4\u8d4b\u503c\u3002<\/p>\n<pre>int[] arr1 = {1, 2, 3, 4, 5};\nint[] arr2 = new int[arr1.length];\nSystem.arraycopy(arr1, 0, arr2, 0, arr1.length); \/\/ \u590d\u5236 arr1 \u5230 arr2<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<h3>\u6ce8\u610f<\/h3>\n<ul>\n<li>\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u5728\u4e3a\u6570\u7ec4\u8d4b\u503c\u65f6\uff0c\u8bf7\u786e\u4fdd\u5206\u914d\u7684\u503c\u6570\u91cf\u4e0e\u6570\u7ec4\u7684\u957f\u5ea6\u5339\u914d\u3002<\/li>\n<li>\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u4f4d\u4e8e\u7d22\u5f15 0 \u5904\u3002<\/li>\n<li>\u5982\u679c\u60a8\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\u7684\u7d22\u5f15\uff0c\u5c06\u5f15\u53d1 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7ed9int\u6570\u7ec4\u8d4b\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u9010\u4e2a\u8d4b\u503c\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u4e3a\u6570\u7ec4\u5143\u7d20\u9010\u4e2a\u5206\u914d\u503c\u3002\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u5728\u58f0\u660e\u65f6\u4e3a\u6570\u7ec4\u8d4b\u503c\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1a\u5c06\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a\u6307\u5b9a\u7684\u503c\u3002\u901a\u8fc7\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u8d4b\u503c\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u590d\u5236\u53e6\u4e00\u4e2a\u6570\u7ec4\u3002 \u5982\u4f55\u5728 Java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c Java \u6570\u7ec4\u8d4b\u503c\u65b9\u6cd5 \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 Java \u4e2d\u4e3a int \u6570\u7ec4\u8d4b\u503c\uff1a \u9010\u4e2a\u8d4b\u503c \u9010\u4e2a\u8d4b\u503c\u6d89\u53ca\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08=\uff09\u4e3a\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u4e00\u4e2a\u503c\u3002 int[] arr = new int[5]; arr[0] = 1; arr[1] = 2; &#8230; arr[4] = 5; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668 \u6570\u7ec4\u521d\u59cb\u5316\u5668\u5141\u8bb8\u60a8\u5728\u58f0\u660e\u65f6\u4e3a\u6570\u7ec4\u8d4b\u503c\u3002\u8fd9\u662f\u5c06\u503c\u5206\u914d\u7ed9\u6570\u7ec4\u6700\u7b80\u6d01\u7684\u65b9\u6cd5\u3002 int[] arr = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5 Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a\u6307\u5b9a\u7684\u503c\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b [&hellip;]<\/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-65632","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65632","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=65632"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65632\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}