{"id":9674,"date":"2026-08-10T10:10:10","date_gmt":"2026-08-10T10:10:10","guid":{"rendered":"https:\/\/nokobox.com\/index.php\/item\/udemy-oracle-java-se-21-developer-professional-1z0-830-2024-11\/"},"modified":"2026-08-10T10:10:10","modified_gmt":"2026-08-10T10:10:10","slug":"udemy-oracle-java-se-21-developer-professional-1z0-830-2024-11","status":"publish","type":"digital_item","link":"https:\/\/nokobox.com\/index.php\/item\/udemy-oracle-java-se-21-developer-professional-1z0-830-2024-11\/","title":{"rendered":"Udemy \u2013 Oracle Java SE 21 Developer Professional: 1Z0-830 2024-11"},"content":{"rendered":"<div class=\"w-post-elm post_content\">\n<h2 dir=\"ltr\">Description<\/h2>\n<p dir=\"ltr\">Oracle Java SE 21 Developer Professional: 1Z0-830 is an Oracle Certified Professional course in Java SE 21 published by Udemy Online Academy. The Oracle Java SE 21 Developer Professional: 1Z0-830 course is a comprehensive and up-to-date preparation resource designed for developers who want to become Oracle Certified Professionals in Java SE 21. The course thoroughly covers key Java concepts such as object-oriented programming, exception handling, multiple handling, collections, and sets. Modern Java 21 features such as pattern matching for switches, records, sealed classes, string templates, and virtual strings. It follows the official Oracle 1Z0-830 exam objectives and includes in-depth explanations, hands-on coding exercises, and practice questions designed to reinforce understanding and increase exam preparation.<\/p>\n<p dir=\"ltr\">This course is built to help you master every topic required for the Oracle 1Z0-830 certification. It includes lessons to build your understanding and quizzes to test your knowledge. Ideal for intermediate to advanced Java developers, this course also provides guidance on modular programming, functional programming with lambdas, and working with the Java Platform Module System (JPMS). The curriculum ensures that learners can confidently write clean, efficient Java code, solve complex problems, and excel in the certification exam and real-world Java development projects. By the end of the course, you will be well-prepared to take the certification exam with confidence.<\/p>\n<h3 dir=\"ltr\">What you will learn in Oracle Java SE 21 Developer Professional: 1Z0-830:<\/h3>\n<ul dir=\"ltr\">\n<li>Create and manage control flow structures such as if\/else, switch, and loops<\/li>\n<li>Implement advanced object-oriented concepts, including encapsulation and inheritance<\/li>\n<li>Create classes, records, and instantiate fields, methods, and constructors<\/li>\n<li>Implement polymorphism, method overriding, and instance operator with pattern matching<\/li>\n<li>Work effectively with Java interfaces, utility methods, and enums<\/li>\n<li>Handle exceptions using try\/catch\/finally, try-with-resources, and multi-catch blocks<\/li>\n<li>Create and manipulate Java arrays and collections such as List, Set, Map, and Deque<\/li>\n<li>Process data using Streams and lambda expressions for filtering, transforming, and sorting<\/li>\n<li>And\u2026<\/li>\n<\/ul>\n<h3 dir=\"ltr\">Course specifications<\/h3>\n<p dir=\"ltr\">Publisher: <a href=\"https:\/\/href.li\/?https:\/\/www.udemy.com\/course\/oracle-certification-java-21-learnit\/?couponCode=LEARNNOWPLANS\" target=\"_blank\" rel=\"noopener\"> Udemy <\/a><br \/>Instructors: &nbsp;Andrii Piatakha<br \/>Language: English<br \/>Level: Introductory to Advanced<br \/>Number of Lessons: 172<br \/>Duration: 32 hours and 25 minutes<\/p>\n<h3 dir=\"ltr\">Course topics<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-976988\" src=\"https:\/\/downloadly.ir\/wp-content\/uploads\/2025\/04\/Oracle-Java-SE-21-Developer-Professional-1Z0-830-Co.png\" alt=\"Oracle Java SE 21 Developer Professional 1Z0-830 Content\" width=\"709\" height=\"2070\"><\/p>\n<h3 dir=\"ltr\">Oracle Java SE 21 Developer Professional: 1Z0-830 Prerequisites<\/h3>\n<p dir=\"ltr\">No Prior Java Knowledge Required: The course is beginner-friendly and comprehensive<br \/>Willingness to Learn: Openness to explore Java\u2019s in-depth concepts<br \/>Stable Internet Connection: For accessing course materials and completing exercises online<br \/>Time Commitment: Availability to dedicate consistent time to learning and practice<\/p>\n<h3 dir=\"ltr\">Pictures<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-976989\" src=\"https:\/\/downloadly.ir\/wp-content\/uploads\/2025\/04\/Oracle-Java-SE-21-Developer-Professional-1Z0-830-1.png\" alt=\"\" width=\"642\" height=\"261\"><\/p>\n<h3 dir=\"ltr\">Oracle Java SE 21 Developer Professional: 1Z0-830 introduction video<\/h3>\n<div style=\"width: 640px;\" class=\"wp-video\"><span class=\"mejs-offscreen\">Video Player<\/span><\/p>\n<div id=\"mep_0\" class=\"mejs-container mejs-container-keyboard-inactive wp-video-shortcode mejs-video\" tabindex=\"0\" role=\"application\" aria-label=\"Video Player\" style=\"width: 640px; height: 360px; min-width: 217px;\">\n<div class=\"mejs-inner\">\n<div class=\"mejs-mediaelement\"><mediaelementwrapper id=\"video-161246-1\"><video class=\"wp-video-shortcode\" id=\"video-161246-1_html5\" width=\"640\" height=\"360\" preload=\"metadata\" src=\"https:\/\/dl.downloadly.ir\/Files\/Elearning\/Sample\/Oracle_Java_SE_21_Developer_Professional_1Z0_830_Downloadly.ir.mp4?_=1\" style=\"width: 640px; height: 360px;\"><source type=\"video\/mp4\" src=\"https:\/\/dl.downloadly.ir\/Files\/Elearning\/Sample\/Oracle_Java_SE_21_Developer_Professional_1Z0_830_Downloadly.ir.mp4?_=1\"><a href=\"https:\/\/dl.downloadly.ir\/Files\/Elearning\/Sample\/Oracle_Java_SE_21_Developer_Professional_1Z0_830_Downloadly.ir.mp4?nocache=1786116191107\">https:\/\/dl.downloadly.ir\/Files\/Elearning\/Sample\/Oracle_Java_SE_21_Developer_Professional_1Z0_830_Downloadly.ir.mp4<\/a><\/video><\/mediaelementwrapper><\/div>\n<div class=\"mejs-layers\">\n<div class=\"mejs-poster mejs-layer\" style=\"display: none; width: 100%; height: 100%;\"><\/div>\n<div class=\"mejs-overlay mejs-layer\" style=\"display: none; width: 100%; height: 100%;\">\n<div class=\"mejs-overlay-loading\"><span class=\"mejs-overlay-loading-bg-img\"><\/span><\/div>\n<\/div>\n<div class=\"mejs-overlay mejs-layer\" style=\"display: none; width: 100%; height: 100%;\">\n<div class=\"mejs-overlay-error\"><\/div>\n<\/div>\n<div class=\"mejs-overlay mejs-layer mejs-overlay-play\" style=\"width: 100%; height: 100%;\">\n<div class=\"mejs-overlay-button\" role=\"button\" tabindex=\"0\" aria-label=\"Play\" aria-pressed=\"false\"><\/div>\n<\/div>\n<\/div>\n<div class=\"mejs-controls\">\n<div class=\"mejs-button mejs-playpause-button mejs-play\"><button type=\"button\" aria-controls=\"mep_0\" title=\"Play\" aria-label=\"Play\" tabindex=\"0\"><\/button><\/div>\n<div class=\"mejs-time mejs-currenttime-container\" role=\"timer\" aria-live=\"off\"><span class=\"mejs-currenttime\">00:00<\/span><\/div>\n<div class=\"mejs-time-rail\"><span class=\"mejs-time-total mejs-time-slider\" role=\"slider\" tabindex=\"0\" aria-label=\"Time Slider\" aria-valuemin=\"0\" aria-valuemax=\"0\" aria-valuenow=\"0\" aria-valuetext=\"00:00\"><span class=\"mejs-time-buffering\" style=\"display: none;\"><\/span><span class=\"mejs-time-loaded\"><\/span><span class=\"mejs-time-current\"><\/span><span class=\"mejs-time-hovered no-hover\"><\/span><span class=\"mejs-time-handle\"><span class=\"mejs-time-handle-content\"><\/span><\/span><span class=\"mejs-time-float\"><span class=\"mejs-time-float-current\">00:00<\/span><span class=\"mejs-time-float-corner\"><\/span><\/span><\/span><\/div>\n<div class=\"mejs-time mejs-duration-container\"><span class=\"mejs-duration\">00:00<\/span><\/div>\n<div class=\"mejs-button mejs-volume-button mejs-mute\"><button type=\"button\" aria-controls=\"mep_0\" title=\"Mute\" aria-label=\"Mute\" tabindex=\"0\"><\/button><a href=\"javascript:void(0);\" class=\"mejs-volume-slider\" aria-label=\"Volume Slider\" aria-valuemin=\"0\" aria-valuemax=\"100\" role=\"slider\" aria-orientation=\"vertical\"><span class=\"mejs-offscreen\">Use Up\/Down Arrow keys to increase or decrease volume.<\/span><\/p>\n<div class=\"mejs-volume-total\">\n<div class=\"mejs-volume-current\" style=\"bottom: 0px; height: 100%;\"><\/div>\n<div class=\"mejs-volume-handle\" style=\"bottom: 100%; margin-bottom: -3px;\"><\/div>\n<\/div>\n<p><\/a><\/div>\n<div class=\"mejs-button mejs-fullscreen-button\"><button type=\"button\" aria-controls=\"mep_0\" title=\"Fullscreen\" aria-label=\"Fullscreen\" tabindex=\"0\"><\/button><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 dir=\"ltr\"><span class=\"notranslate\">Installation guide<\/span><\/h3>\n<p dir=\"ltr\">After Extract, watch with your favorite Player.<\/p>\n<p dir=\"ltr\">Subtitle: None<\/p>\n<p dir=\"ltr\">Quality: 720p<\/p>\n<h3 dir=\"ltr\">Download link<\/h3>\n<p><a href=\"https:\/\/dl3.downloadly.ir\/Files\/Elearning\/Udemy_Oracle_Java_SE_21_Developer_Professional_1Z0_830_2024-11.part1_Downloadly.ir.rar?nocache=1786116190\">Download Part 1 \u2013 4 GB<\/a><\/p>\n<p><a href=\"https:\/\/dl3.downloadly.ir\/Files\/Elearning\/Udemy_Oracle_Java_SE_21_Developer_Professional_1Z0_830_2024-11.part2_Downloadly.ir.rar?nocache=1786116190\">Download Part 2 \u2013 4 GB<\/a><\/p>\n<p><a href=\"https:\/\/dl3.downloadly.ir\/Files\/Elearning\/Udemy_Oracle_Java_SE_21_Developer_Professional_1Z0_830_2024-11.part3_Downloadly.ir.rar?nocache=1786116190\">Download Part 3 \u2013 4 GB<\/a><\/p>\n<p><a href=\"https:\/\/dl3.downloadly.ir\/Files\/Elearning\/Udemy_Oracle_Java_SE_21_Developer_Professional_1Z0_830_2024-11.part4_Downloadly.ir.rar?nocache=1786116190\">Download Part 4 \u2013 4 GB<\/a><\/p>\n<p><a href=\"https:\/\/dl3.downloadly.ir\/Files\/Elearning\/Udemy_Oracle_Java_SE_21_Developer_Professional_1Z0_830_2024-11.part5_Downloadly.ir.rar?nocache=1786116190\">Download Part 5 \u2013 1.6 GB<\/a><\/p>\n<h5 dir=\"ltr\">File password (s): <a>www.downloadly.ir<\/a><\/h5>\n<h3 dir=\"ltr\">Size<\/h3>\n<p dir=\"ltr\">17.6 GB<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Description Oracle Java SE 21 Developer Professional: 1Z0-830 is an Oracle Certified Professional course in Java SE 21 published by Udemy Online Academy. The Or<\/p>\n","protected":false},"author":1,"template":"","dgi_category":[10458],"dgi_tag":[24975,83091,83092,83093,83094,83095,83096,83097,83098,83099],"class_list":["post-9674","digital_item","type-digital_item","status-publish","has-post-thumbnail","hentry","dgi_category-video-tutorials","dgi_tag-andrii-piatakha","dgi_tag-oracle-java-se-21-developer-professional-1z0-830","dgi_tag-oracle-java-se-21-developer-professional-1z0-830-download","dgi_tag-oracle-java-se-21-developer-professional-1z0-830-free","dgi_tag-oracle-java-se-21-developer-professional-1z0-830-free-download","dgi_tag-udemy-oracle-java-se-21-developer-professional-1z0-830","dgi_tag-udemy-oracle-java-se-21-developer-professional-1z0-830-download","dgi_tag-udemy-oracle-java-se-21-developer-professional-1z0-830-english","dgi_tag-udemy-oracle-java-se-21-developer-professional-1z0-830-free","dgi_tag-udemy-oracle-java-se-21-developer-professional-1z0-830-free-download"],"_links":{"self":[{"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/digital_item\/9674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/digital_item"}],"about":[{"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/types\/digital_item"}],"author":[{"embeddable":true,"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":0,"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/digital_item\/9674\/revisions"}],"wp:attachment":[{"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/media?parent=9674"}],"wp:term":[{"taxonomy":"dgi_category","embeddable":true,"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/dgi_category?post=9674"},{"taxonomy":"dgi_tag","embeddable":true,"href":"https:\/\/nokobox.com\/index.php\/wp-json\/wp\/v2\/dgi_tag?post=9674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}