{"id":6090,"date":"2025-03-17T07:57:04","date_gmt":"2025-03-17T07:57:04","guid":{"rendered":"https:\/\/www.hirist.tech\/blog\/?p=6090"},"modified":"2025-12-29T11:44:09","modified_gmt":"2025-12-29T11:44:09","slug":"top-20-oops-abap-interview-questions-and-answers","status":"publish","type":"post","link":"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/","title":{"rendered":"Top 20 OOPs ABAP Interview Questions and Answers"},"content":{"rendered":"\n<p>Want to perform well in your upcoming OOPs ABAP interview?&nbsp;Object-Oriented Programming (OOP) in ABAP is an important skill for SAP developers, and interviewers often test both fundamental and advanced concepts.&nbsp;To help you prepare, we&#8217;ve compiled the top 20 OOPs ABAP interview questions and answers. This guide will refresh your knowledge and make sure you&#8217;re ready to tackle key topics.<\/p>\n\n\n\n<p>Let\u2019s get to the <a href=\"https:\/\/www.hirist.tech\/blog\/tag\/questions\/\" target=\"_blank\" rel=\"noreferrer noopener\">questions<\/a>!<\/p>\n\n\n\n<p><strong>Fun Fact:<\/strong> SAP ABAP Developer salaries in India range from \u20b92.4 Lakhs to \u20b912.3 Lakhs for 1 to 5 years of experience.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#Basic_OOPs_ABAP_Interview_Questions\" title=\"Basic OOPs ABAP Interview Questions\">Basic OOPs ABAP Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#OOPs_Interview_Questions_in_SAP_ABAP_for_Freshers\" title=\"OOPs Interview Questions in SAP ABAP for Freshers&nbsp;\">OOPs Interview Questions in SAP ABAP for Freshers&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#SAP_OOPs_ABAP_Interview_Questions_for_Experienced\" title=\"SAP OOPs ABAP Interview Questions for Experienced&nbsp;\">SAP OOPs ABAP Interview Questions for Experienced&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#Advanced_SAP_OO_ABAP_Interview_Questions\" title=\"Advanced SAP OO ABAP Interview Questions\">Advanced SAP OO ABAP Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#Tricky_OOPs_ABAP_Interview_Questions_in_SAP_ABAP\" title=\"Tricky OOPs ABAP Interview Questions in SAP ABAP\">Tricky OOPs ABAP Interview Questions in SAP ABAP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#OOPs_ABAP_Real_Time_Interview_Questions\" title=\"OOPs ABAP Real Time Interview Questions\">OOPs ABAP Real Time Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#Oops_ALV_Interview_Questions\" title=\"Oops ALV Interview Questions\">Oops ALV Interview Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/#Wrapping_Up\" title=\"Wrapping Up\">Wrapping Up<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Basic_OOPs_ABAP_Interview_Questions\"><\/span>Basic OOPs ABAP Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are some basic SAP ABAP OOPs interview questions and answers:<\/p>\n\n\n\n<ol>\n<li><strong>What is Object-Oriented Programming (OOP) in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>OOP in ABAP is a programming paradigm that uses &#8220;objects&#8221;\u2014data structures encapsulating data and behaviour\u2014to design applications. This approach promotes modularity, reusability, and maintainability by organizing code into classes and objects that model real-world entities.&nbsp;<\/p>\n\n\n\n<ol start=\"2\">\n<li><strong>How do you define a class in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>This is one of the most common SAP Object Oriented Programming interview questions.<\/p>\n\n\n\n<p>In ABAP, a class is defined using the CLASS keyword, followed by the class name and the DEFINITION keyword. The class can have public, protected, and private sections to declare attributes, methods, and events.&nbsp;<\/p>\n\n\n\n<p><strong>For example:<\/strong><\/p>\n\n\n\n<p>CLASS lcl_example DEFINITION.<\/p>\n\n\n\n<p>&nbsp;&nbsp;PUBLIC SECTION.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;METHODS: display.<\/p>\n\n\n\n<p>&nbsp;&nbsp;PRIVATE SECTION.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;DATA: text TYPE string.<\/p>\n\n\n\n<p>ENDCLASS.<\/p>\n\n\n\n<ol start=\"3\">\n<li><strong>What are the visibility sections in an ABAP class?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>ABAP classes have three visibility sections:<\/p>\n\n\n\n<ul>\n<li><strong>Public:<\/strong> Accessible by all users and other classes.\u200b<\/li>\n\n\n\n<li><strong>Protected:<\/strong> Accessible within the class itself and its subclasses.\u200b&nbsp;<\/li>\n\n\n\n<li><strong>Private:<\/strong> Accessible only within the class itself.\u200b<\/li>\n<\/ul>\n\n\n\n<p>These sections control the scope and accessibility of class components.<\/p>\n\n\n\n<ol start=\"4\">\n<li><strong>Can you explain the concept of inheritance in ABAP Objects?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Inheritance in ABAP Objects allows a class (subclass) to inherit properties and methods from another class (superclass). This promotes code reusability and establishes a hierarchical relationship between classes. The subclass can also override or extend the functionality of the superclass methods.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"OOPs_Interview_Questions_in_SAP_ABAP_for_Freshers\"><\/span>OOPs Interview Questions in SAP ABAP for Freshers&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here is a list of common SAP ABAP OOPs interview questions and answers for freshers:&nbsp;<\/p>\n\n\n\n<ol start=\"5\">\n<li><strong>What is the difference between a class and an object in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>A class is a blueprint that defines attributes and methods common to all objects of that type. An object is an instance of a class, representing a specific entity with actual values for the attributes defined by the class.<\/p>\n\n\n\n<ol start=\"6\">\n<li><strong>How is polymorphism implemented in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Polymorphism in ABAP is achieved through:<\/p>\n\n\n\n<ul>\n<li><strong>Method Overriding:<\/strong> A subclass provides a specific implementation of a method already defined in its superclass.\u200b<\/li>\n\n\n\n<li><strong>Interfaces:<\/strong> Different classes implement the same interface methods, allowing them to be used interchangeably based on the interface reference.\u200b<\/li>\n<\/ul>\n\n\n\n<ol start=\"7\">\n<li><strong>What is an interface in ABAP, and how is it different from a class?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>An interface in ABAP is a collection of method signatures without implementations. Classes that implement the interface must provide concrete implementations for these methods. Unlike classes, interfaces cannot hold data or provide method implementations.<\/p>\n\n\n\n<ol start=\"8\">\n<li><strong>Can you explain the concept of method overloading in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Method overloading in ABAP refers to defining multiple methods with the same name but different parameters (number, type, or sequence) within the same class. However, ABAP does not support method overloading in the traditional sense; instead, developers use optional parameters or different method names to achieve similar functionality.<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-25-sap-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 25 SAP Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SAP_OOPs_ABAP_Interview_Questions_for_Experienced\"><\/span>SAP OOPs ABAP Interview Questions for Experienced&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let\u2019s go through some important ABAP OOPs interview questions and answers for experienced candidates:&nbsp;<\/p>\n\n\n\n<ol start=\"9\">\n<li><strong>How do you implement polymorphism using interfaces in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>In ABAP, polymorphism is implemented using interfaces by defining a common interface with method signatures and having multiple classes implement this interface. Objects of these classes can be handled through interface references, allowing dynamic method binding at runtime.<\/p>\n\n\n\n<ol start=\"10\">\n<li><strong>What is the significance of abstract classes in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Abstract classes in ABAP serve as templates for other classes. They can contain both implemented methods and abstract methods (without implementation). Abstract classes cannot be instantiated directly; instead, subclasses must provide implementations for the abstract methods.<\/p>\n\n\n\n<ol start=\"11\">\n<li><strong>How do you handle exceptions in OOPs ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Exceptions in OOPs ABAP are handled using:<\/p>\n\n\n\n<ul>\n<li><strong>Class-Based Exceptions:<\/strong> Defining exception classes that inherit from CX_ROOT and using RAISE EXCEPTION to trigger them.\u200b<\/li>\n\n\n\n<li><strong>TRY&#8230;ENDTRY Blocks:<\/strong> Encapsulating code that might raise exceptions within these blocks and using CATCH to handle specific exceptions.\u200b<\/li>\n<\/ul>\n\n\n\n<ol start=\"12\">\n<li><strong>Can you explain the concept of events in ABAP Objects?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Events in ABAP Objects allow a class to trigger actions that other classes can respond to. A class defines an event, and other classes can register to handle this event by implementing handler methods. This mechanism supports a publish-subscribe pattern, promoting loose coupling between classes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advanced_SAP_OO_ABAP_Interview_Questions\"><\/span>Advanced SAP OO ABAP Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These are advanced OOPs ABAP interview questions and answers:&nbsp;<\/p>\n\n\n\n<ol start=\"13\">\n<li><strong>What are singleton classes in ABAP, and how are they implemented?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>A singleton class in ABAP ensures that only one instance of the class exists during the runtime of an application. This is implemented by:<\/p>\n\n\n\n<ul>\n<li>Declaring the class constructor as private or protected.\u200b<\/li>\n\n\n\n<li>Providing a static method that checks if an instance exists and creates one if it doesn&#8217;t, returning the instance reference.\u200b<\/li>\n<\/ul>\n\n\n\n<p>This pattern is useful when a single point of access to a resource or service is required.<\/p>\n\n\n\n<ol start=\"14\">\n<li><strong>How do you achieve multiple inheritance in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>ABAP does not support multiple inheritance directly through classes. However, multiple inheritance can be achieved using interfaces. A class can implement multiple interfaces, thereby inheriting the method signatures from all the interfaces.<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-25-python-oops-interview-question-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 25+ Python OOPs Interview Question (2026)<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tricky_OOPs_ABAP_Interview_Questions_in_SAP_ABAP\"><\/span>Tricky OOPs ABAP Interview Questions in SAP ABAP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are some tricky OOPs in SAP ABAP interview questions and answers:&nbsp;<\/p>\n\n\n\n<ol start=\"15\">\n<li><strong>Can you instantiate an interface in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>No, an interface cannot be instantiated directly because it does not contain implementations for its methods. Instead, a class implementing the interface must be instantiated, and an interface reference can be used to call its methods.<\/p>\n\n\n\n<ol start=\"16\">\n<li><strong>What happens if a class implements an interface but does not provide implementations for all its methods?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>If a class implements an interface but does not provide implementations for all the methods defined in the interface, it results in a syntax error. All methods of an interface must be implemented by the class that adopts it.<\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-20-php-oops-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 20 PHP OOPs Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"OOPs_ABAP_Real_Time_Interview_Questions\"><\/span>OOPs ABAP Real Time Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are some real-time OOPs SAP ABAP interview questions and answers:&nbsp;<\/p>\n\n\n\n<ol start=\"17\">\n<li><strong>How would you design a global class to handle database operations in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>To design a global class for database operations:<\/p>\n\n\n\n<ul>\n<li>Define a class in SE24 or as a local class.<\/li>\n\n\n\n<li>Use methods for CRUD (Create, Read, Update, Delete) operations.<\/li>\n\n\n\n<li>Implement generic select methods with input parameters for table names and conditions.<\/li>\n\n\n\n<li>Use exception handling to manage database errors effectively.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example:<\/strong><\/p>\n\n\n\n<p>CLASS lcl_db_handler DEFINITION.<\/p>\n\n\n\n<p>&nbsp;&nbsp;PUBLIC SECTION.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;METHODS: get_data IMPORTING iv_table TYPE string&nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RETURNING VALUE(rt_data) TYPE STANDARD TABLE.<\/p>\n\n\n\n<p>ENDCLASS.<\/p>\n\n\n\n<ol start=\"18\">\n<li><strong>Can you describe a scenario where you used inheritance to simplify code in an ABAP project?<\/strong><\/li>\n<\/ol>\n\n\n\n<p><em>\u201cIn one of my projects, we had multiple reports that required different data-fetching logic but shared a common output structure. Instead of duplicating code, I created a base class with generic methods for ALV display and a subclass for each report that handled specific data retrieval. This approach reduced redundancy and made the code easier to maintain.\u201d<\/em><\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-30-c-oops-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 30+ C# OOPs Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Oops_ALV_Interview_Questions\"><\/span>Oops ALV Interview Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You might also come across interview questions on OOPs ALV in SAP ABAP like these:&nbsp;<\/p>\n\n\n\n<ol start=\"19\">\n<li><strong>How do you implement an Object-Oriented ALV report in ABAP?<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Implementing an ALV report using OOPs approach involves:<\/p>\n\n\n\n<ul>\n<li>Using CL_SALV_TABLE for ALV handling.<\/li>\n\n\n\n<li>Defining a global\/local class with a method to fetch data.<\/li>\n\n\n\n<li>Calling ALV display methods to format and output the data.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example:<\/strong><\/p>\n\n\n\n<p>DATA: lo_alv TYPE REF TO cl_salv_table.<\/p>\n\n\n\n<p>cl_salv_table=&gt;factory( IMPORTING r_salv_table = lo_alv&nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CHANGING&nbsp; t_table = lt_data ).<\/p>\n\n\n\n<p>lo_alv-&gt;display( ).<\/p>\n\n\n\n<ol start=\"20\">\n<li><strong>What are the advantages of using the CL_SALV_TABLE class for ALV reports?<\/strong><\/li>\n<\/ol>\n\n\n\n<ul>\n<li>Reduces coding effort by providing built-in functions for sorting, filtering, and column adjustments.<\/li>\n\n\n\n<li>Improves maintainability as layout settings and display logic are encapsulated in a class.<\/li>\n\n\n\n<li>Encourages reuse across multiple reports by using common ALV handling methods.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-verse\"><strong>Also Read - <a href=\"https:\/\/www.hirist.tech\/blog\/top-20-c-oops-interview-questions-and-answers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Top 20 C++ OOPs Interview Questions and Answers<\/a><\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wrapping_Up\"><\/span>Wrapping Up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These 20 OOPs ABAP interview questions and answers cover essential concepts, from basics to advanced topics, helping you prepare effectively. Understanding these will boost your confidence in SAP ABAP interviews. Looking for top <a href=\"https:\/\/www.hirist.tech\/k\/sap-abap-jobs.html?ref=blog\">OOPs ABAP jobs in India<\/a>? Hirist is a dedicated job portal for tech professionals, making it easy to find the right opportunities. Start your job search now!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Want to perform well in your upcoming OOPs ABAP interview?&nbsp;Object-Oriented Programming (OOP) in ABAP is&hellip;<\/p>\n","protected":false},"author":1,"featured_media":6099,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,28,19],"tags":[32,34,80,33,81],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Top 20 OOPs ABAP Interview Questions and Answers (2026) - Hirist Blog<\/title>\n<meta name=\"description\" content=\"Get the top 20 OOPs ABAP interview questions and answers covering both basic and advanced concepts of SAP ABAP Object Oriented Programming.\" \/>\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.hirist.tech\/blog\/top-20-oops-abap-interview-questions-and-answers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top 20 OOPs ABAP Interview Questions and Answers (2026) - 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