{"id":28576,"date":"2024-03-16T10:36:34","date_gmt":"2024-03-16T10:36:34","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/"},"modified":"2024-03-22T13:47:19","modified_gmt":"2024-03-22T13:47:19","slug":"how-to-retrieve-the-intersection-of-multiple-arrays-in-java","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/","title":{"rendered":"How to retrieve the intersection of multiple arrays in Java?"},"content":{"rendered":"<p>In Java, the intersection of multiple arrays can be obtained using the intersection operation of collection classes. Here is an example:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.util.Arrays;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.HashSet;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.Set;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ArrayIntersection<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">int<\/span>[] arr1 = {<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>};\r\n        <span class=\"hljs-type\">int<\/span>[] arr2 = {<span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-number\">7<\/span>};\r\n        <span class=\"hljs-type\">int<\/span>[] arr3 = {<span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">9<\/span>};\r\n\r\n        Set&lt;Integer&gt; set1 = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HashSet<\/span>&lt;&gt;(Arrays.asList(Arrays.stream(arr1).boxed().toArray(Integer[]::<span class=\"hljs-keyword\">new<\/span>)));\r\n        \r\n        <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">i<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">1<\/span>; i &lt; <span class=\"hljs-number\">3<\/span>; i++) {\r\n            Set&lt;Integer&gt; set2 = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HashSet<\/span>&lt;&gt;(Arrays.asList(Arrays.stream(arr2).boxed().toArray(Integer[]::<span class=\"hljs-keyword\">new<\/span>)));\r\n            set1.retainAll(set2);\r\n        }\r\n\r\n        System.out.println(<span class=\"hljs-string\">\"\u4ea4\u96c6\u7ed3\u679c\uff1a\"<\/span> + set1);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>In the example above, we used the HashSet class to create a temporary collection object, then converted the arrays to collections using the Arrays.asList() method, and finally used the retainAll() method to find the intersection of the two collections. Within the loop, we first found the intersection of the first and second arrays, then found the intersection with the third array to get the final intersection result.<\/p>\n<p>The output result is: intersection result: [5]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Java, the intersection of multiple arrays can be obtained using the intersection operation of collection classes. Here is an example: import java.util.Arrays; import java.util.HashSet; import java.util.Set; public class ArrayIntersection { public static void main(String[] args) { int[] arr1 = {1, 2, 3, 4, 5}; int[] arr2 = {3, 4, 5, 6, 7}; int[] arr3 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-28576","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to retrieve the intersection of multiple arrays in Java? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to retrieve the intersection of multiple arrays in Java?\" \/>\n<meta property=\"og:description\" content=\"In Java, the intersection of multiple arrays can be obtained using the intersection operation of collection classes. Here is an example: import java.util.Arrays; import java.util.HashSet; import java.util.Set; public class ArrayIntersection { public static void main(String[] args) { int[] arr1 = {1, 2, 3, 4, 5}; int[] arr2 = {3, 4, 5, 6, 7}; int[] arr3 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T10:36:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T13:47:19+00:00\" \/>\n<meta name=\"author\" content=\"Olivia Parker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Olivia Parker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\"},\"author\":{\"name\":\"Olivia Parker\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\"},\"headline\":\"How to retrieve the intersection of multiple arrays in Java?\",\"datePublished\":\"2024-03-16T10:36:34+00:00\",\"dateModified\":\"2024-03-22T13:47:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\"},\"wordCount\":105,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-retrieve-the-intersection-of-multiple-arrays-in-java\/\",\"name\":\"How to retrieve the intersection of multiple arrays in Java? 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