{"id":179549,"date":"2025-01-01T18:23:26","date_gmt":"2025-01-01T18:23:26","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=179549"},"modified":"2025-01-01T18:23:28","modified_gmt":"2025-01-01T18:23:28","slug":"add-cairo-to-the-end-of-the-traveldestinations-array","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/01\/add-cairo-to-the-end-of-the-traveldestinations-array\/","title":{"rendered":"Add &#8220;Cairo&#8221; to the end of the travelDestinations array"},"content":{"rendered":"\n<p>Add &#8220;Cairo&#8221; to the end of the travelDestinations array.<\/p>\n\n\n\n<p>Add &#8220;Mexico City&#8221; to the front of the travelDestinations array.<\/p>\n\n\n\n<p>Update arrLen with the new length of the travelDestinations after completing the two previous problems. in java<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/01\/image-1.png\" alt=\"\" class=\"wp-image-179550\"\/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here\u2019s how to solve the given task in Java, along with a detailed explanation:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Java Code:<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.ArrayList;\n\npublic class TravelDestinations {\n    public static void main(String&#91;] args) {\n        \/\/ Initializing the travelDestinations array list with some initial cities\n        ArrayList&lt;String&gt; travelDestinations = new ArrayList&lt;&gt;();\n        travelDestinations.add(\"New York\");\n        travelDestinations.add(\"Tokyo\");\n        travelDestinations.add(\"Paris\");\n\n        \/\/ Add \"Cairo\" to the end of the array\n        travelDestinations.add(\"Cairo\");\n\n        \/\/ Add \"Mexico City\" to the front of the array\n        travelDestinations.add(0, \"Mexico City\");\n\n        \/\/ Update the arrLen with the new length of the travelDestinations\n        int arrLen = travelDestinations.size();\n\n        \/\/ Print the modified list and the new length\n        System.out.println(\"Updated Travel Destinations: \" + travelDestinations);\n        System.out.println(\"Length of Travel Destinations: \" + arrLen);\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>ArrayList Initialization<\/strong>:\n<ul class=\"wp-block-list\">\n<li>We begin by initializing an <code>ArrayList<\/code> called <code>travelDestinations<\/code>. In Java, <code>ArrayList<\/code> is a class in the <code>java.util<\/code> package that allows dynamic resizing. Unlike arrays, <code>ArrayList<\/code> can grow or shrink as needed, making it ideal for situations where the number of elements is uncertain.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Adding &#8220;Cairo&#8221; to the End<\/strong>:\n<ul class=\"wp-block-list\">\n<li>We use the <code>add()<\/code> method to add <code>\"Cairo\"<\/code> to the end of the list. In an <code>ArrayList<\/code>, the <code>add()<\/code> method appends the element to the end of the list. After this operation, <code>\"Cairo\"<\/code> will be the last element of the <code>travelDestinations<\/code> list.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Adding &#8220;Mexico City&#8221; to the Front<\/strong>:\n<ul class=\"wp-block-list\">\n<li>We use the <code>add(index, element)<\/code> method to insert <code>\"Mexico City\"<\/code> at the front of the list. The <code>add(0, \"Mexico City\")<\/code> method specifically inserts <code>\"Mexico City\"<\/code> at index 0, shifting all other elements one position to the right. This ensures that <code>\"Mexico City\"<\/code> becomes the first element.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Updating arrLen<\/strong>:\n<ul class=\"wp-block-list\">\n<li>After modifying the list, we update the variable <code>arrLen<\/code> to reflect the current size of the <code>travelDestinations<\/code> list. The <code>size()<\/code> method of <code>ArrayList<\/code> returns the number of elements in the list. After the two insertions, the size will be updated accordingly.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Output<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Finally, we print the updated <code>travelDestinations<\/code> list and the new size (<code>arrLen<\/code>), which will be <code>5<\/code> in this case. Initially, there were 3 cities in the list, and after adding two more cities, the list\u2019s size becomes 5.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Output:<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Updated Travel Destinations: &#91;Mexico City, New York, Tokyo, Paris, Cairo]\nLength of Travel Destinations: 5\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Key Points:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>ArrayList<\/code> in Java is a part of the <code>java.util<\/code> package and provides dynamic arrays that can grow or shrink.<\/li>\n\n\n\n<li>The <code>add()<\/code> method is used to append elements at the end of the list, and <code>add(index, element)<\/code> is used to insert elements at specific positions.<\/li>\n\n\n\n<li>The <code>size()<\/code> method returns the number of elements in the list, and it is automatically updated after modifications to the list.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Add &#8220;Cairo&#8221; to the end of the travelDestinations array. Add &#8220;Mexico City&#8221; to the front of the travelDestinations array. Update arrLen with the new length of the travelDestinations after completing the two previous problems. in java The correct answer and explanation is: Here\u2019s how to solve the given task in Java, along with a detailed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-179549","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/179549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=179549"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/179549\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=179549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=179549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=179549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}