{"id":40058,"date":"2024-11-26T12:59:31","date_gmt":"2024-11-26T04:59:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/40058\/"},"modified":"2024-11-26T12:59:31","modified_gmt":"2024-11-26T04:59:31","slug":"java%e6%80%8e%e4%b9%88%e9%87%8a%e6%94%be%e4%b8%8b%e8%bd%bd%e7%9a%84%e5%ad%97%e8%8a%82%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/40058\/","title":{"rendered":"java\u600e\u4e48\u91ca\u653e\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4"},"content":{"rendered":"

\n \u8981\u91ca\u653e\u4e0b\u8f7d\u7684 java \u5b57\u8282\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\u3002\u8fd9\u5c06\u4f7f\u5783\u573e\u6536\u96c6\u5668\u56de\u6536\u8be5\u5185\u5b58\u533a\u57df\uff0c\u4ece\u800c\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002\u6b65\u9aa4\uff1a1. \u5bfc\u5165 java.util.arrays \u5305\u30022. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\uff08\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\uff09\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u91ca\u653e\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u91ca\u653e\u4e0b\u8f7d\u7684 Java \u5b57\u8282\u6570\u7ec4<\/strong><\/p>\n

\u56de\u7b54\uff1a<\/strong>
\u8981\u91ca\u653e\u4e0b\u8f7d\u7684 Java \u5b57\u8282\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\u3002<\/p>\n

\u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n

Java \u4e2d\u7684\u5b57\u8282\u6570\u7ec4\u672c\u8d28\u4e0a\u662f\u5b58\u50a8\u539f\u59cb\u5b57\u8282\u7684\u8fde\u7eed\u5185\u5b58\u5757\u3002\u5f53\u4e0b\u8f7d\u5b57\u8282\u6570\u7ec4\u540e\uff0c\u5982\u679c\u4e0d\u518d\u9700\u8981\uff0c\u5c31\u5e94\u8be5\u91ca\u653e\u5b83\u4eec\u4ee5\u91ca\u653e\u5185\u5b58\u3002\u5426\u5219\uff0c\u8fd9\u4e9b\u5b57\u8282\u6570\u7ec4\u5c06\u6210\u4e3a\u201c\u5783\u573e\u201d\uff0c\u5728\u5783\u573e\u56de\u6536\u671f\u95f4\u4f1a\u88ab\u5904\u7406\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

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

\u91ca\u653e\u5b57\u8282\u6570\u7ec4\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u5bfc\u5165 java.util.Arrays \u5305\u3002<\/li>\n
  2. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\uff08\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\uff09\u3002<\/li>\n<\/ol>\n

    \u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    import java.util.Arrays;\n\nbyte[] downloadedByteArray; \/\/ \u5df2\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4\n\n\/\/ \u91ca\u653e\u5b57\u8282\u6570\u7ec4\nArrays.fill(downloadedByteArray, (byte) 0);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u901a\u8fc7\u5c06\u5b57\u8282\u6570\u7ec4\u5143\u7d20\u8bbe\u7f6e\u4e3a\u96f6\uff0cJava \u865a\u62df\u673a (JVM) \u53ef\u4ee5\u5c06\u8be5\u5185\u5b58\u533a\u57df\u89c6\u4e3a\u672a\u4f7f\u7528\u7684\u7a7a\u95f4\u3002\u5783\u573e\u6536\u96c6\u5668\u968f\u540e\u4f1a\u56de\u6536\u8fd9\u90e8\u5206\u5185\u5b58\uff0c\u4ece\u800c\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002<\/p>\n
    \u8bf7\u6ce8\u610f\uff0cArrays.fill() \u65b9\u6cd5\u4f1a\u4fee\u6539\u539f\u59cb\u5b57\u8282\u6570\u7ec4\u3002\u56e0\u6b64\uff0c\u4e0d\u8981\u5728\u9700\u8981\u4fdd\u7559\u539f\u59cb\u6570\u636e\u7684\u5176\u4ed6\u64cd\u4f5c\u4e2d\u4f7f\u7528\u8be5\u6570\u7ec4\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u91ca\u653e\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4\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":"
    \u8981\u91ca\u653e\u4e0b\u8f7d\u7684 java \u5b57\u8282\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\u3002\u8fd9\u5c06\u4f7f\u5783\u573e\u6536\u96c6\u5668\u56de\u6536\u8be5\u5185\u5b58\u533a\u57df\uff0c\u4ece\u800c\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002\u6b65\u9aa4\uff1a1. \u5bfc\u5165 java.util.arrays \u5305\u30022. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\uff08\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\uff09\u3002 \u5982\u4f55\u91ca\u653e\u4e0b\u8f7d\u7684 Java \u5b57\u8282\u6570\u7ec4 \u56de\u7b54\uff1a\u8981\u91ca\u653e\u4e0b\u8f7d\u7684 Java \u5b57\u8282\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\u3002 \u8be6\u7ec6\u8bf4\u660e\uff1a Java \u4e2d\u7684\u5b57\u8282\u6570\u7ec4\u672c\u8d28\u4e0a\u662f\u5b58\u50a8\u539f\u59cb\u5b57\u8282\u7684\u8fde\u7eed\u5185\u5b58\u5757\u3002\u5f53\u4e0b\u8f7d\u5b57\u8282\u6570\u7ec4\u540e\uff0c\u5982\u679c\u4e0d\u518d\u9700\u8981\uff0c\u5c31\u5e94\u8be5\u91ca\u653e\u5b83\u4eec\u4ee5\u91ca\u653e\u5185\u5b58\u3002\u5426\u5219\uff0c\u8fd9\u4e9b\u5b57\u8282\u6570\u7ec4\u5c06\u6210\u4e3a\u201c\u5783\u573e\u201d\uff0c\u5728\u5783\u573e\u56de\u6536\u671f\u95f4\u4f1a\u88ab\u5904\u7406\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u91ca\u653e\u5b57\u8282\u6570\u7ec4\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u5bfc\u5165 java.util.Arrays \u5305\u3002 \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u8bbe\u7f6e\u4e3a\u96f6\uff08\u6216\u5176\u4ed6\u9ed8\u8ba4\u503c\uff09\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a import java.util.Arrays; byte[] downloadedByteArray; \/\/ \u5df2\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4 \/\/ \u91ca\u653e\u5b57\u8282\u6570\u7ec4 Arrays.fill(downloadedByteArray, (byte) 0); \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u5c06\u5b57\u8282\u6570\u7ec4\u5143\u7d20\u8bbe\u7f6e\u4e3a\u96f6\uff0cJava \u865a\u62df\u673a (JVM) \u53ef\u4ee5\u5c06\u8be5\u5185\u5b58\u533a\u57df\u89c6\u4e3a\u672a\u4f7f\u7528\u7684\u7a7a\u95f4\u3002\u5783\u573e\u6536\u96c6\u5668\u968f\u540e\u4f1a\u56de\u6536\u8fd9\u90e8\u5206\u5185\u5b58\uff0c\u4ece\u800c\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002 \u8bf7\u6ce8\u610f\uff0cArrays.fill() \u65b9\u6cd5\u4f1a\u4fee\u6539\u539f\u59cb\u5b57\u8282\u6570\u7ec4\u3002\u56e0\u6b64\uff0c\u4e0d\u8981\u5728\u9700\u8981\u4fdd\u7559\u539f\u59cb\u6570\u636e\u7684\u5176\u4ed6\u64cd\u4f5c\u4e2d\u4f7f\u7528\u8be5\u6570\u7ec4\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u91ca\u653e\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-40058","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40058","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=40058"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40058\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=40058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=40058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=40058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}