{"id":682,"date":"2024-05-10T06:13:18","date_gmt":"2024-05-10T06:13:18","guid":{"rendered":"https:\/\/www.skillvertex.com\/blog\/?p=682"},"modified":"2024-05-10T06:13:18","modified_gmt":"2024-05-10T06:13:18","slug":"different-type-of-inheritance-in-java","status":"publish","type":"post","link":"https:\/\/www.skillvertex.com\/blog\/different-type-of-inheritance-in-java\/","title":{"rendered":"Different Type Of Inheritance In Java"},"content":{"rendered":"\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\" id=\"rank-math-toc\"><p>Table of Contents<\/p><nav><ul><li ><a href=\"#different-type-of-inheritance-in-java\">Different Type Of Inheritance In Java<\/a><\/li><li ><a href=\"#what-is-inheritance\">What is Inheritance?<\/a><ul><li ><a href=\"#terminologies-related-to-the-concept-are\"> Terminologies Related to the Concept are:<\/a><\/li><li ><a href=\"#syntax\">Syntax <\/a><\/li><li ><a href=\"#general-format\">General Format<\/a><\/li><\/ul><\/li><li ><a href=\"#types-of-inheritance-in-java\">Types of Inheritance in Java<\/a><\/li><li ><a href=\"#single-inheritance\">Single Inheritance\u00a0<\/a><\/li><li ><a href=\"#multiple-inheritance\">Multiple Inheritance <\/a><\/li><li ><a href=\"#multi-level-inheritance\">Multi-Level Inheritance <\/a><\/li><li ><a href=\"#hierarchical-inheritance\">Hierarchical Inheritance <\/a><\/li><li ><a href=\"#hybrid-inheritance\">Hybrid Inheritance <\/a><\/li><li ><a href=\"#inheritance-program-in-java\">Inheritance Program in Java <\/a><\/li><li ><a href=\"#applications-of-inheritance-in-java\">Applications of Inheritance in Java <\/a><ul><li ><a href=\"#method-overriding-in-java\">Method Overriding in Java\u00a0<\/a><\/li><\/ul><\/li><li ><a href=\"#faq-different-type-of-inheritance-in-java\">FAQ &#8211; Different Type Of Inheritance In Java<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"different-type-of-inheritance-in-java\">Different Type Of Inheritance In Java<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Inheritance, a fundamental concept in object-oriented programming, empowers developers to create new classes that inherit attributes and behaviors from existing ones. Java, a versatile and widely used programming language, offers various types of inheritance mechanisms that facilitate code reusability and the construction of organized class hierarchies. Understanding these different types of inheritance is crucial for crafting efficient and maintainable Java applications. In this exploration, we delve into the diverse inheritance models provided by Java, examining how each type contributes to the architecture and design of software systems. From single and multiple inheritance to hierarchical and hybrid models, let&#8217;s embark on a journey to comprehend the intricacies of inheritance in Java.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-inheritance\">What is Inheritance?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the realm of Java programming, inheritance stands as a fundamental cornerstone, facilitating the passage of attributes and functionalities from one class to another\u2014an analogy resembling the bond between a guardian and their ward. This intricate process, reminiscent of a father imparting his traits to his offspring, encapsulates the essence of inheritance: the art of transference.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the Java landscape, the inheritance mechanism empowers creators to mold classes and characteristics with precision, catering to their distinct purposes. Notably, this concept traces its origins back to 1969, emerging within the Simula programming language at the Computing Center in Oslo. Though our focus is Java-centric, it&#8217;s important to recognize that the inheritance concept transcends linguistic boundaries, manifesting across renowned object-oriented languages such as PHP, C++, and Python. The term &#8220;inheritance&#8221; extends its reach beyond class structures, encompassing prototypes, and embodies a universally embraced paradigm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As we embark on this journey, we will unravel the mosaic of inheritance in its entirety. Our expedition will navigate through the various facets of Java&#8217;s inheritance offerings, unearthing single and multiple inheritance nuances, delving into hierarchical constructs, and even exploring the uncharted terrain of hybrid models. Ultimately, we will gain a profound comprehension of how inheritance intricately weaves itself into the very fabric of software architecture, enriching the design of formidable and resilient systems.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"terminologies-related-to-the-concept-are\"> Terminologies Related to the Concept are:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Class: Think of a class as a blueprint that outlines shared traits among objects. It lays the foundation for creating instances.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Subclass: This variant, also called a derived or extended subclass, inherits traits from another class. Beyond what it inherits, a subclass can add its own attributes and methods.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Superclass: The parent class, or superclass, contributes inheritable traits to subclasses, forming a hierarchical relationship.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reusability: Reusability involves crafting new classes by incorporating methods from existing ones. It&#8217;s like building on a foundation, recycling code for efficiency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"syntax\"><strong>Syntax<\/strong><br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">class derived_class extends base_class&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/methods&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/fields<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"general-format\"><strong>General Format<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">class\u200b superclass&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/ superclass data variables&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/ superclass member functions&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">class\u200b subclass \u200bextends\u200b superclass&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">{&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/ subclass data variables&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\/\/ subclass member functions&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note <\/strong>: <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> Inheritance uses the \u201cextends\u201d keywords in order to produce derived classes while using the Base class. Extending keywords indicates the class to another class.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"types-of-inheritance-in-java\"><strong>Types of Inheritance in Java<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are miscellaneous types of inheritance in java:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Single Inheritance<\/li>\n\n\n\n<li>Multiple Inheritance<\/li>\n\n\n\n<li>Multi-Level Inheritance<\/li>\n\n\n\n<li>Hierarchical Inheritance<\/li>\n\n\n\n<li>Hybrid Inheritance<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"single-inheritance\">Single Inheritance&nbsp;<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Single Inheritance: Single inheritance refers to the creation of a parent class from a sole base class. This approach involves utilizing just one class to establish the superclass. The beauty of single inheritance lies in the seamless utilization of superclass variables, subclass methods, and attributes, all coexisting without conflicts. This concept stands as a prominent type within the spectrum of inheritance in Java.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here&#8217;s a simple coding example illustrating single inheritance in Java:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Parent class\nclass Vehicle {\n    void displayInfo() {\n        System.out.println(\"This is a vehicle.\");\n    }\n}\n\n\/\/ Child class inheriting from the parent class\nclass Car extends Vehicle {\n    void showDetails() {\n        System.out.println(\"This is a car.\");\n    }\n}\n\npublic class Main {\n    public static void main(String&#91;] args) {\n        \/\/ Creating an object of the child class\n        Car myCar = new Car();\n\n        \/\/ Calling methods from both parent and child classes\n        myCar.displayInfo(); \/\/ Method from the parent class\n        myCar.showDetails(); \/\/ Method from the child class\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this example, we have a <code>Vehicle<\/code> class as the parent class, and a <code>Car<\/code> class as the child class. The <code>Car<\/code> class inherits from the <code>Vehicle<\/code> class using single inheritance. The <code>Car<\/code> class can access the <code>displayInfo()<\/code> method from the <code>Vehicle<\/code> class, demonstrating the concept of single inheritance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"multiple-inheritance\">Multiple Inheritance<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When a succession of diverse inheritances occurs, it&#8217;s referred to as multiple inheritance. Streamlining the creation of descendant classes from various parent classes defines the essence of multiple inheritance. This scenario could involve one or more superclass classes. While multiple inheritance is present in some object-oriented programming languages, it&#8217;s not a feature in Java and isn&#8217;t categorized as a type of inheritance in the Java context.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Java programmers often find intrigue in the concept of multiple inheritance, and while it&#8217;s not directly supported in Java, there&#8217;s an alternative approach using interfaces. Interfaces offer a means for Java programmers to emulate multiple inheritance in specific scenarios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The absence of multiple inheritance in Java is attributed to the desire to avert ambiguity. Consider a scenario where class A extends class B, and both classes A and C implement the same method present in class B. This creates a potential conflict, making it difficult to ascertain which version of the method should be utilized. Java&#8217;s design choice to exclude multiple inheritance is rooted in maintaining code clarity and sidestepping such dilemmas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"multi-level-inheritance\">Multi-Level Inheritance<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Multilevel inheritance in Java involves the combination of two or more classes, where one class extends another, which in turn extends another class. This cascading relationship creates a sequence of parent and child classes. For instance, when there&#8217;s a class A extending class B, and class B extending class C, this configuration exemplifies multilevel inheritance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s explore this with an illustrative example using classes in the realm of food items:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Food {\n    void consume() {\n        System.out.println(\"This is a generic food item.\");\n    }\n}\n\nclass Pizza extends Food {\n    void eat() {\n        System.out.println(\"Enjoying a delicious pizza.\");\n    }\n}\n\nclass CocaCola extends Pizza {\n    void drink() {\n        System.out.println(\"Sipping on a refreshing Coca-Cola.\");\n    }\n}\n\npublic class Main {\n    public static void main(String&#91;] args) {\n        CocaCola coke = new CocaCola();\n        coke.consume(); \/\/ Method from the Food class\n        coke.eat();    \/\/ Method from the Pizza class\n        coke.drink();  \/\/ Method from the CocaCola class\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this example, we have three classes: <code>Food<\/code>, <code>Pizza<\/code>, and <code>CocaCola<\/code>. The classes exhibit a multilevel inheritance structure. The <code>CocaCola<\/code> class extends the <code>Pizza<\/code> class, which in turn extends the <code>Food<\/code> class. This hierarchy allows the <code>CocaCola<\/code> class to inherit methods from both the <code>Pizza<\/code> and <code>Food<\/code> classes. This demonstration underscores the essence of multilevel inheritance and how it fits into the spectrum of inheritance types in Java.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hierarchical-inheritance\">Hierarchical Inheritance<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hierarchical inheritance in Java emerges when two or more child classes extend a shared parent class, creating a branching hierarchy. This scenario unfolds when a single parent class has multiple child classes extending from it. This configuration embodies the essence of hierarchical inheritance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let&#8217;s delve into this concept using a simple example in the context of vegetables:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Vegetables {\n    void displayType() {\n        System.out.println(\"This is a vegetable.\");\n    }\n}\n\nclass Potato extends Vegetables {\n    void showVariety() {\n        System.out.println(\"This is a type of potato.\");\n    }\n}\n\nclass Tomato extends Vegetables {\n    void revealColor() {\n        System.out.println(\"This is a red tomato.\");\n    }\n}\n\nclass Cucumber extends Vegetables {\n    void describeShape() {\n        System.out.println(\"This is a long cucumber.\");\n    }\n}\n\npublic class Main {\n    public static void main(String&#91;] args) {\n        Potato potato = new Potato();\n        Tomato tomato = new Tomato();\n        Cucumber cucumber = new Cucumber();\n\n        potato.displayType();  \/\/ Method from the Vegetables class\n        potato.showVariety();  \/\/ Method from the Potato class\n\n        tomato.displayType();  \/\/ Method from the Vegetables class\n        tomato.revealColor();  \/\/ Method from the Tomato class\n\n        cucumber.displayType();  \/\/ Method from the Vegetables class\n        cucumber.describeShape(); \/\/ Method from the Cucumber class\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this example, the <code>Vegetables<\/code> class acts as the parent class, while <code>Potato<\/code>, <code>Tomato<\/code>, and <code>Cucumber<\/code> classes are child classes extending from it. This arrangement depicts hierarchical inheritance, as multiple classes branch out from a single parent class, each encapsulating distinct attributes and methods. This instance showcases how hierarchical inheritance aligns within the array of inheritance types in Java.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hybrid-inheritance\">Hybrid Inheritance<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hybrid inheritance in Java refers to a blend of different inheritance types, combining elements of both single inheritance and multiple inheritances. However, it&#8217;s important to note that hybrid inheritance is not directly supported in Java due to potential complexities and ambiguities that could arise. Nevertheless, Java provides a way to achieve a similar effect using interfaces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When discussing types of inheritance in Java, it&#8217;s important to clarify that hybrid inheritance is not a distinct category. Instead, it&#8217;s a combination of single inheritance and multiple inheritances, and as mentioned earlier, it&#8217;s not natively accommodated in Java due to concerns about code clarity and potential conflicts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The two commonly recognized types of inheritance in Java are indeed single inheritance and hierarchical inheritance. Single inheritance involves one class inheriting from another, while hierarchical inheritance includes multiple subclasses extending from a single parent class. These concepts form the basis of inheritance in Java and are used to create organized class hierarchies and promote code reusability.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"inheritance-program-in-java\">Inheritance Program in Java<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Certainly! Here&#8217;s a simple inheritance program in Java that demonstrates the concept of single inheritance:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Animal {\n    void eat() {\n        System.out.println(\"Animal is eating.\");\n    }\n}\n\nclass Dog extends Animal {\n    void bark() {\n        System.out.println(\"Dog is barking.\");\n    }\n}\n\npublic class Main {\n    public static void main(String&#91;] args) {\n        Dog myDog = new Dog();\n        myDog.eat();  \/\/ Method inherited from the Animal class\n        myDog.bark(); \/\/ Method from the Dog class\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this program, we have a base class <code>Animal<\/code> with a method <code>eat()<\/code>. The <code>Dog<\/code> class extends the <code>Animal<\/code> class, inheriting the <code>eat()<\/code> method. The <code>Dog<\/code> class also has its own method <code>bark()<\/code>. In the <code>Main<\/code> class, we create an object of the <code>Dog<\/code> class and demonstrate how it can access both the inherited <code>eat()<\/code> method and its own <code>bark()<\/code> method.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This example showcases the principle of single inheritance, where a subclass inherits attributes and methods from a single superclass.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"applications-of-inheritance-in-java\">Applications of Inheritance in Java<br><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"method-overriding-in-java\"><strong>Method Overriding in Java&nbsp;<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Method overriding in Java involves a subclass redefining a method from its superclass. The subclass method has the same name, parameters, and return type. This enables runtime polymorphism, where the actual method executed depends on the object&#8217;s type. Method overriding enhances inheritance by allowing subclasses to provide their own specialized behavior for inherited methods.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq-different-type-of-inheritance-in-java\">FAQ &#8211; Different Type Of Inheritance In Java<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1691561422331\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q1. What is the type of inheritance in OOP?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans. In object-oriented programming, inheritance is the mechanism of basing an object or class upon another object (prototype-based inheritance) or class (class-based inheritance), retaining similar implementation<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1691561432001\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q2. What is polymorphism in Java?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans. Polymorphism means &#8220;<strong>many forms<\/strong>&#8220;, and it occurs when we have many classes that are related to each other by inheritance. Like we specified in the previous chapter; Inheritance lets us inherit attributes and methods from another class. Polymorphism uses those methods to perform different tasks.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1691561444248\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Q3. How many types of inheritance are there in Java?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Ans. Java supports only\u00a0<strong>Single, Multilevel, and Hierarchical<\/strong>\u00a0types of inheritance. Java does not support Multiple and Hybrid inheritance. We have discussed the Multiple inheritance ambiguity and Diamond problem in Java<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Different Type Of Inheritance In Java Inheritance, a fundamental concept in object-oriented programming, empowers developers to create new classes that inherit attributes and behaviors from existing ones. Java, a versatile and widely used programming language, offers various types of inheritance mechanisms that facilitate code reusability and the construction of organized class hierarchies. Understanding these different &#8230; <a title=\"Different Type Of Inheritance In Java\" class=\"read-more\" href=\"https:\/\/www.skillvertex.com\/blog\/different-type-of-inheritance-in-java\/\" aria-label=\"More on Different Type Of Inheritance In Java\">Read more<\/a><\/p>\n","protected":false},"author":4,"featured_media":4841,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,32],"tags":[170],"class_list":["post-682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computer-science","category-java","tag-different-type-of-inheritance-in-java","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"_links":{"self":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/comments?post=682"}],"version-history":[{"count":12,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/682\/revisions"}],"predecessor-version":[{"id":10519,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/posts\/682\/revisions\/10519"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/media\/4841"}],"wp:attachment":[{"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/media?parent=682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/categories?post=682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skillvertex.com\/blog\/wp-json\/wp\/v2\/tags?post=682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}