In this article, we will explain inheritance in Java, describe types of inheritance in Java<\/strong>, and provide examples and tips.<\/p>\n Inheritance is a construct where one class (the subclass or child class) can inherit attributes and methods from another class (the superclass or parent class).<\/p>\n Inheritance can also:<\/p>\n The cool thing about inheritance in Java is that it uses the keyword extends<\/strong>.<\/p>\n Java supports several forms of inheritance. However, multiple inheritance with classes is not allowed<\/strong> (to avoid ambiguity), but you can achieve it using interfaces.<\/p>\n A single child class inherits from a single parent class.<\/p>\n A class inherits from another child class, forming a chain.<\/p>\n Here, Puppy inherits from Dog, and Dog inherits from Animal.<\/p>\n Multiple child classes inherit from a single parent.<\/p>\n While Java doesn\u2019t allow true hybrid inheritance with classes, you can achieve it using interfaces.<\/p>\n \ud83d\udc49 Hybrid inheritance is useful when you need functionality from multiple sources.<\/p>\n Java does not support multiple inheritance with classes<\/strong> because it leads to ambiguity (commonly known as the diamond problem<\/em>). \u2705 Key point:<\/strong> Multiple inheritance in Java is supported only through interfaces<\/strong>, not through regular classes.<\/p>\n When a subclass provides a specific implementation of a method already defined in its parent, it\u2019s called method overriding<\/strong>.<\/p>\n Use the super keyword to access the parent class\u2019s members.<\/p>\n Consider vehicles:<\/p>\n This hierarchy demonstrates how inheritance in Java<\/strong> represents real-world relationships.<\/p>\n Q1: Can we inherit constructors in Java?<\/strong><\/p>\n No, constructors are not inherited, but they can be called from the subclass by using super().<\/p>\n Q2: Does Java support multiple inheritance?<\/strong><\/p>\n Not with classes, but it does with interfaces.<\/p>\n Q3: How do inheritance and polymorphism connect?<\/strong><\/p>\n Polymorphism depends on inheritance to override methods.<\/p>\n As you can see, mastering inheritance in Java<\/strong> is necessary for writing clean, reusable, and extensible code. Understanding the types of inheritance in Java<\/strong>, method overriding, and best practices is half the battle. With the right practices, you will end up creating great applications that conform to solid OOPs in Java<\/strong><\/a>.<\/p>\n Continue to practice using a hierarchy like what we see in real-life, but remember to use both inheritance and composition!<\/p>\n If you are looking to improve your skills, consider enrolling in a complete Java course<\/a><\/strong> that explores inheritance, polymorphism, and all major OOPs in Java concepts with guided hands-on projects.<\/p>\n Introduction One of the chief Object-Oriented Programming (OOP) concepts that a developer must learn is inheritance in Java. Inheritance allows one class to inherit attributes and methods (fields and methods) of another class. This can make your code reusable, more organized, and easier to maintain. In this article, we will explain inheritance in Java, describe […]<\/p>\n","protected":false},"author":9,"featured_media":15868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3356],"tags":[8326,8839,1300,9162,9166,9160,9164,9163,9165,1604,8824,2058,9161,9159],"class_list":["post-15859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-inheritance-in-java","tag-java-coding-examples","tag-java-course","tag-java-extends-keyword","tag-java-hybrid-inheritance","tag-java-inheritance-example","tag-java-interfaces","tag-java-method-overriding","tag-java-multiple-inheritance","tag-java-programming","tag-java-tutorials-2025","tag-object-oriented-programming","tag-oops-in-java","tag-types-of-inheritance-in-java"],"_links":{"self":[{"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/posts\/15859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/comments?post=15859"}],"version-history":[{"count":0,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/posts\/15859\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/media\/15868"}],"wp:attachment":[{"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/media?parent=15859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/categories?post=15859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kaashivinfotech.com\/blog\/wp-json\/wp\/v2\/tags?post=15859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What is Inheritance in Java?<\/h2>\n
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Syntax of Inheritance in Java<\/h2>\n
class Parent {\r\n void display() {\r\n System.out.println(\"This is the parent class\");\r\n }\r\n}\r\n\r\nclass Child extends Parent {\r\n void show() {\r\n System.out.println(\"This is the child class\");\r\n }\r\n}\r\n\r\npublic class TestInheritance {\r\n public static void main(String[] args) {\r\n Child obj = new Child();\r\n obj.display(); \/\/ Inherited from Parent\r\n obj.show(); \/\/ Child\u2019s own method\r\n }\r\n}<\/pre>\nTypes of Inheritance in Java<\/h2>\n
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Single Inheritance in Java<\/strong><\/h4>\n
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class Animal {\r\n void eat() {\r\n System.out.println(\"Eating...\");\r\n }\r\n}\r\n\r\nclass Dog extends Animal {\r\n void bark() {\r\n System.out.println(\"Barking...\");\r\n }\r\n}<\/pre>\nMultilevel Inheritance in Java<\/strong><\/h4>\n
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class Animal { void eat() {} }\r\nclass Dog extends Animal { void bark() {} }\r\nclass Puppy extends Dog { void weep() {} }<\/pre>\nHierarchical Inheritance in Java<\/strong><\/h4>\n
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class Animal { void eat() {} }\r\nclass Dog extends Animal { void bark() {} }\r\nclass Cat extends Animal { void meow() {} }<\/pre>\nHybrid Inheritance in Java (via Interfaces)<\/strong><\/h4>\n
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interface A { void methodA(); }\r\ninterface B { void methodB(); }\r\n\r\nclass C implements A, B {\r\n public void methodA() {}\r\n public void methodB() {}\r\n}<\/pre>\nMultiple Inheritance in Java (via Interfaces)<\/strong><\/h4>\n
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However, you can achieve multiple inheritance using interfaces<\/strong>.<\/p>\ninterface Printer {\r\n void print();\r\n}\r\n\r\ninterface Scanner {\r\n void scan();\r\n}\r\n\r\nclass MultiFunctionMachine implements Printer, Scanner {\r\n public void print() {\r\n System.out.println(\"Printing document...\");\r\n }\r\n public void scan() {\r\n System.out.println(\"Scanning document...\");\r\n }\r\n}\r\n\r\npublic class TestMultipleInheritance {\r\n public static void main(String[] args) {\r\n MultiFunctionMachine m = new MultiFunctionMachine();\r\n m.print();\r\n m.scan();\r\n }\r\n}<\/pre>\nMethod Overriding and Super Keyword<\/h2>\n
class Parent {\r\n void message() {\r\n System.out.println(\"Message from Parent\");\r\n }\r\n}\r\n\r\nclass Child extends Parent {\r\n @Override\r\n void message() {\r\n System.out.println(\"Overridden message from Child\");\r\n }\r\n}<\/pre>\nReal-Life Example of Inheritance in Java<\/h2>\n
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Advantages of Inheritance in Java<\/h2>\n
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Common Mistakes and Best Practices<\/h2>\n
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FAQs<\/h2>\n
Conclusion<\/h2>\n
Related Links<\/h2>\n
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