{"id":78393,"date":"2025-08-24T00:37:27","date_gmt":"2025-08-24T00:37:27","guid":{"rendered":"http:\/\/bangla.sitestree.com\/?p=78393"},"modified":"2025-08-24T00:37:28","modified_gmt":"2025-08-24T00:37:28","slug":"java-design-patterns-simplified","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=78393","title":{"rendered":"Java Design Patterns Simplified"},"content":{"rendered":"\n<p>From AI Tools\/OpenAI\/Internet<\/p>\n\n\n\n<p>&#8220;<\/p>\n\n\n\n<p>Here\u2019s a <strong>short, copyright-free version<\/strong> suitable for Facebook or a blog post:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Java Design Patterns Simplified<\/strong><\/p>\n\n\n\n<p>Design patterns are proven solutions to common programming problems. They make code more reusable, flexible, and easier to maintain.<\/p>\n\n\n\n<p><strong>1\ufe0f\u20e3 Creational Patterns<\/strong> \u2013 How objects are created.<br>Examples: Singleton, Factory, Builder, Prototype.<\/p>\n\n\n\n<p><strong>2\ufe0f\u20e3 Structural Patterns<\/strong> \u2013 How objects are organized and related.<br>Examples: Adapter, Decorator, Facade, Proxy, Composite.<\/p>\n\n\n\n<p><strong>3\ufe0f\u20e3 Behavioral Patterns<\/strong> \u2013 How objects interact and communicate.<br>Examples: Observer, Strategy, Command, State, Template Method.<\/p>\n\n\n\n<p>\ud83d\udca1 <strong>Tip:<\/strong> Using design patterns wisely can save time, reduce errors, and make your code cleaner and easier to understand.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<p>&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>From AI Tools\/OpenAI\/Internet &#8220; Here\u2019s a short, copyright-free version suitable for Facebook or a blog post: Java Design Patterns Simplified Design patterns are proven solutions to common programming problems. They make code more reusable, flexible, and easier to maintain. 1\ufe0f\u20e3 Creational Patterns \u2013 How objects are created.Examples: Singleton, Factory, Builder, Prototype. 2\ufe0f\u20e3 Structural Patterns \u2013 &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=78393\">Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1975],"tags":[],"class_list":["post-78393","post","type-post","status-publish","format-standard","hentry","category-anything-java","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":76018,"url":"http:\/\/bangla.sitestree.com\/?p=76018","url_meta":{"origin":78393,"position":0},"title":"Java: Facade Design Pattern","author":"Sayed","date":"May 6, 2024","format":false,"excerpt":"Fa\u00e7ade Pattern \u201cFacade is a structural design pattern that provides a simplified interface to a library, a framework, or any other complex set of classes.\u201d \u201cWhen you call a shop to place a phone order, an operator is your facade to all services and departments of the shop. The operator\u2026","rel":"","context":"In &quot;Java Design Patterns and OOP&quot;","block_context":{"text":"Java Design Patterns and OOP","link":"http:\/\/bangla.sitestree.com\/?cat=1962"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-9.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":76014,"url":"http:\/\/bangla.sitestree.com\/?p=76014","url_meta":{"origin":78393,"position":1},"title":"Java : Decorator Design pattern","author":"Sayed","date":"May 6, 2024","format":false,"excerpt":"Decorator Design pattern: Decorator is a structural design pattern that lets you attach new behaviors to objects by placing these objects inside special wrapper objects that contain the behaviors. Example: Assume: A notifier class\/object can send only email messages. But the application at a later time may want to use\u2026","rel":"","context":"In &quot;Java Design Patterns and OOP&quot;","block_context":{"text":"Java Design Patterns and OOP","link":"http:\/\/bangla.sitestree.com\/?cat=1962"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-8.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-8.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-8.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-8.png?resize=700%2C400 2x"},"classes":[]},{"id":78099,"url":"http:\/\/bangla.sitestree.com\/?p=78099","url_meta":{"origin":78393,"position":2},"title":"Java Creational Design Patterns","author":"Sayed","date":"May 4, 2025","format":false,"excerpt":"5 types of creational design patterns: Factory Design Patterns: Purpose: Create Objects, Keep Object Creation Centralized Abstract Factory Design Patterns Singleton Design Pattern: Limit instantiation\u00a0 of a clas to only one instance Prototype Design Patterns: Object creation based on Prototype Object Instance; Simpler Object Creation than Factory. Builder Design Patterns:\u2026","rel":"","context":"In &quot;Root&quot;","block_context":{"text":"Root","link":"http:\/\/bangla.sitestree.com\/?cat=1"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/05\/image-3.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/05\/image-3.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/05\/image-3.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2025\/05\/image-3.png?resize=700%2C400 2x"},"classes":[]},{"id":76009,"url":"http:\/\/bangla.sitestree.com\/?p=76009","url_meta":{"origin":78393,"position":3},"title":"Java Structural Design Patterns","author":"Sayed","date":"May 6, 2024","format":false,"excerpt":"Adapter Design Patterns Ref: A good read: https:\/\/refactoring.guru\/design-patterns\/adapter Ref: Wikipedia Ref: https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-aggregation-vs-composition\/","rel":"","context":"In &quot;Java Design Patterns and OOP&quot;","block_context":{"text":"Java Design Patterns and OOP","link":"http:\/\/bangla.sitestree.com\/?cat=1962"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/bangla.sitestree.com\/wp-content\/uploads\/2024\/05\/image-7.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":66312,"url":"http:\/\/bangla.sitestree.com\/?p=66312","url_meta":{"origin":78393,"position":4},"title":"Java Design Patterns and Examples #Java Short Notes","author":"Author-Check- Article-or-Video","date":"July 18, 2021","format":false,"excerpt":"J2EE core design patterns: Click on a pattern rectangle to explore Data Access Object Transfer Object From: http:\/\/sitestree.com\/?p=4934 Categories:Java Short NotesTags: Post Data:2007-06-04 16:27:01 Shop Online: https:\/\/www.ShopForSoul.com\/ (Big Data, Cloud, Security, Machine Learning): Courses: http:\/\/Training.SitesTree.com In Bengali: http:\/\/Bangla.SaLearningSchool.com http:\/\/SitesTree.com 8112223 Canada Inc.\/JustEtc: http:\/\/JustEtc.net (Software\/Web\/Mobile\/Big-Data\/Machine Learning) Shop Online: https:\/\/www.ShopForSoul.com\/ Medium: https:\/\/medium.com\/@SayedAhmedCanada","rel":"","context":"In &quot;FromSitesTree.com&quot;","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":66338,"url":"http:\/\/bangla.sitestree.com\/?p=66338","url_meta":{"origin":78393,"position":5},"title":"J2EE Architecture: J2EE Design Patterns: Related Concepts #Java Short Notes","author":"Author-Check- Article-or-Video","date":"July 18, 2021","format":false,"excerpt":"Design Patterns What are design patterns? Design patterns are specific\/(context-based) solutions\/approaches to address specific problems\/situations. Some problems are general\/open problems and very common problems in a particular type of applications. Design patterns can be created to solve such problems in a specific context and that can be re-used every time\u2026","rel":"","context":"In &quot;FromSitesTree.com&quot;","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78393"}],"version-history":[{"count":1,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78393\/revisions"}],"predecessor-version":[{"id":78394,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78393\/revisions\/78394"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78393"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}