{
   "question_id": 7436836,
   "question_title": "数组元素统计",
   "question_content": "<p>定义一个长度为5的数组arr1&#xff0c;用于存放5个1~9的随机整数&#xff08;范围包含1和9&#xff09;&#xff0c;再定义一个长度为2的数组arr2&#xff0c;统计arr1中的元素对2求余等于0的个数,保存到arr2[0], 统计arr1中的元素对3求余等于0的个数,保存到arr2[1],在控制台打印输出arr2的所有元素</p>",
   "difficulty": "简单",
   "answer_id": 53409011,
   "answer_content": "<pre>\n<code class=\"language-java\">package com.auskat.demo.cc;\n\nimport java.util.Random;\n\n/**\n * 类文件: RandomTest\n * &lt;p&gt;\n * &lt;p&gt;\n * 类描述&#xff1a;\n * &lt;p&gt;\n * 作     者&#xff1a; AusKa_T\n * &lt;p&gt;\n * 日     期&#xff1a; 2021/5/27 0027\n * &lt;p&gt;\n * 时     间&#xff1a; 13:29\n * &lt;p&gt;\n */\npublic class RandomTest {\n\n    public static void main(String[] args) {\n\n        int arr1[] &#61; new int[5];\n        for (int i &#61; 0; i &lt; arr1.length; i&#43;&#43;) {\n            arr1[i] &#61;  new Random().nextInt(9) &#43; 1;\n        }\n\n\n        int i2 &#61; 0;\n        int j3 &#61; 0;\n        for (int i &#61; 0; i &lt; arr1.length; i&#43;&#43;) {\n            if(arr1[i] % 2 &#61;&#61; 0) {\n                i2&#43;&#43;;\n            }\n            if(arr1[i] % 3 &#61;&#61; 0) {\n                j3&#43;&#43;;\n            }\n        }\n\n        int arr2[] &#61; new int[2];\n        arr2[0] &#61; i2;\n        arr2[1] &#61; j3;\n\n        for (int i &#61; 0; i &lt; arr2.length; i&#43;&#43;) {\n            System.out.println(arr2[i]);\n        }\n\n    }\n}\n</code></pre>\n\n<p> </p>\n",
   "tag_name": "java",
   "java": "package com.auskat.demo.cc;\nimport java.util.Random;\npublic class RandomTest {\n\tpublic static void main(String[] args) {\n\t\tint arr1[] = new int[5];\n\t\tfor (int i = 0; i < arr1.length; i++) {\n\t\t\tarr1[i] = new Random().nextInt(9) + 1;\n\t\t}\n\t\tint i2 = 0;\n\t\tint j3 = 0;\n\t\tfor (int i = 0; i < arr1.length; i++) {\n\t\t\tif (arr1[i] % 2 == 0) {\n\t\t\t\ti2++;\n\t\t\t}\n\t\t\tif (arr1[i] % 3 == 0) {\n\t\t\t\tj3++;\n\t\t\t}\n\t\t}\n\t\tint arr2[] = new int[2];\n\t\tarr2[0] = i2;\n\t\tarr2[1] = j3;\n\t\tfor (int i = 0; i < arr2.length; i++) {\n\t\t\tSystem.out.println(arr2[i]);\n\t\t}\n\t}\n}",
   "topic_link": "https://bbs.csdn.net/topics/600469875",
   "status": 1,
   "keywords": "算法初阶,基础知识,随机算法,概率分析和随机算法",
   "license": "csdn.net",
   "notebook": {
      "java": "https://codechina.csdn.net/csdn/csdn-daily-code/-/jupyter/master/data/notebook/answer/ipynb/java/22.ipynb?type=file"
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   "notebook_enable": 1
}