{"id":31003,"date":"2024-01-21T00:53:17","date_gmt":"2023-08-08T23:10:45","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%9f%e6%88%90java%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e7%9a%84%e7%b1%bb%e6%98%afjava-util-random%e3%80%82\/"},"modified":"2025-08-12T21:49:02","modified_gmt":"2025-08-12T13:49:02","slug":"%e7%94%9f%e6%88%90java%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e7%9a%84%e7%b1%bb%e6%98%afjava-util-random%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%9f%e6%88%90java%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0%e7%9a%84%e7%b1%bb%e6%98%afjava-util-random%e3%80%82\/","title":{"rendered":"\u751f\u6210Java\u7684\u968f\u673a\u6570\u7684\u7c7b\u662fjava.util.Random"},"content":{"rendered":"<h1>\uff11\uff0c\u751f\u6210\u968f\u673a\u6570\u7684\u65b9\u6cd5<\/h1>\n<blockquote><p>\u278a\u521b\u5efa\u4e00\u4e2a\u968f\u673a\u6570\u5bf9\u8c61\uff1aRandom random = new Random();<\/p>\n<p>\u278b\u751f\u6210\u4e00\u4e2a1\u52306\u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\uff08\u5305\u62ec1\u548c6\uff09\uff1aint x = random.nextInt(6) + 1;<\/p>\n<p>\u278c\u751f\u6210\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u968f\u673a\u5c0f\u6570\uff1adouble y = random.nextDouble();<\/p>\n<p>\u278d\u751f\u6210\u4e00\u4e2a\u968f\u673a\u5e03\u5c14\u503c\uff1aboolean z = random.nextBoolean();<\/p><\/blockquote>\n<h1>2. \u6e90\u4ee3\u7801<\/h1>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">java.util.Random<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Main<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\r\n        <span class=\"nc\">Random<\/span> <span class=\"n\">random<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Random<\/span><span class=\"o\">();<\/span>\r\n\r\n        <span class=\"kt\">int<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"n\">random<\/span><span class=\"o\">.<\/span><span class=\"na\">nextInt<\/span><span class=\"o\">(<\/span><span class=\"mi\">6<\/span><span class=\"o\">)<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span><span class=\"o\">;<\/span>\r\n        <span class=\"kt\">double<\/span> <span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"n\">random<\/span><span class=\"o\">.<\/span><span class=\"na\">nextDouble<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"kt\">boolean<\/span> <span class=\"n\">z<\/span> <span class=\"o\">=<\/span> <span class=\"n\">random<\/span><span class=\"o\">.<\/span><span class=\"na\">nextBoolean<\/span><span class=\"o\">();<\/span>\r\n\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">x<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">y<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">z<\/span><span class=\"o\">);<\/span>\r\n\r\n    <span class=\"o\">}<\/span>\r\n\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>Java\u6559\u7a0b<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\":white_check_mark:\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d0a7a37434c4406be432e\/5-11.png\" alt=\":white_check_mark:\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\uff11\uff0c\u751f\u6210\u968f\u673a\u6570\u7684\u65b9\u6cd5 \u278a\u521b\u5efa\u4e00\u4e2a\u968f\u673a\u6570\u5bf9\u8c61\uff1aRandom random = new Random(); \u278b\u751f\u6210 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31003","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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