{"id":11974,"date":"2022-09-29T04:40:58","date_gmt":"2022-09-28T23:10:58","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-nullpointerexception-object-and-arrays\/"},"modified":"2022-09-29T04:40:58","modified_gmt":"2022-09-28T23:10:58","slug":"solved-nullpointerexception-object-and-arrays","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-nullpointerexception-object-and-arrays\/","title":{"rendered":"[Solved] NullPointerException object and arrays"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-20013618\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"20013618\" data-parentid=\"20013557\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>The method is lack of a modifier <strong>static<\/strong><\/p>\n<p>It should be <code>public static void main(String[] args) {<\/code>.<\/p>\n<p>Change your code of class <strong>SearchComparison<\/strong> as follows and you will get the right result.<\/p>\n<pre><code>public class SearchComparison {\n\npublic static void main(String[] args) {\n    StopWatch watch = new StopWatch();\n    ArrayUtilities utilities = new ArrayUtilities();\n    watch.start();\n    utilities.generateRandom(5);\n    watch.stop();\n}\n\n}\n<\/code><\/pre>\n<p>The result of one run is as follows:<\/p>\n<pre><code>1569548985\n215764588\n880641847\n874970313\n446064254\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved NullPointerException object and arrays <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] The method is lack of a modifier static It should be public static void main(String[] args) {. Change your code of class SearchComparison as follows and you will get the right result. public class SearchComparison { public static void main(String[] args) { StopWatch watch = new StopWatch(); ArrayUtilities utilities = new ArrayUtilities(); watch.start(); utilities.generateRandom(5); &#8230; <a title=\"[Solved] NullPointerException object and arrays\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-nullpointerexception-object-and-arrays\/\" aria-label=\"More on [Solved] NullPointerException object and arrays\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[361,323,328,430],"class_list":["post-11974","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-java","tag-nullpointerexception","tag-object"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] NullPointerException object and arrays - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-nullpointerexception-object-and-arrays\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] NullPointerException object and arrays - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] The method is lack of a modifier static It should be public static void main(String[] args) {. Change your code of class SearchComparison as follows and you will get the right result. public class SearchComparison { public static void main(String[] args) { StopWatch watch = new StopWatch(); ArrayUtilities utilities = new ArrayUtilities(); watch.start(); utilities.generateRandom(5); ... 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