The different types of inheritance are observed in Java: Read: Learn java online for free! Types of Java Inheritance In such a case, to differentiate between the method superclass from that of the sub-class, the super keyword has to be used. The implementation of the method is different but has the same name. If supposedly we have two classes Sub_class and Super_class having the same method i.e. In certain cases when we have to differentiate between the members of the sub-class to that of the superclass having the same names, the keyword “super” is used. With the objects of the subclass, the users can access the subclass member. The creation of the My_Calculation class copies the contents of the superclass into the sub-class. The compilation and execution of the above code give the following output. Keyword extends has been used for inheriting the methods. The methods addition() and Subtraction() are inherited from the class calculation into the My_Calculation. Two classes Calculation and My_Calculation are created in the above example. The new class created is called a sub-class while the inherited class is termed a parent class. It defines that the functionality of the superclass is being extended to the subclass. The keyword “extends” is used while inheriting a class. The concept of polymorphism can be used along with inheritance.The efficiency of execution of a code increases as the code is organized in a simpler form.If the same code has to be used by another class, it can simply be inherited from that class to its sub-class. Inheritance minimizes the complexity of a code by minimizing duplicate code.Implementation of inheritance in Java provides the following benefits: Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career. Learn Software Courses online from the World’s top Universities. Reusability: The technique of reusability allows the user to create a class (a new one) having the fields or methods of an already existing class.Super Class: The superclass represents the class whose features are inherited by a sub-class.Also along with the inherited fields and methods, the class generated from the class can add fields and methods of its own. Sub Class: Also known as a derived or extended class, this class inherits the features from another class.Class: It is defined as a group of objects sharing common properties.In Java, the concept of inheritance allows the users to create classes and use the properties of existing classes.Ī few important terminologies associated with the concept are: Different types of inheritance in java are also mentioned in the article. As discussed earlier that the derived class would inherit the feature, methods, etc from the parent class so the codes present in the parent class would also be inherited into the derived class, this is how reusability would work. The most useful contribution of types of inheritance in java would be the reusability of a code. In simple terms, the inheritance would mean passing down the characteristics of parents(habits, looks, height) to their child. Inheritance is one of the critical features of OOPs (Object Oriented Programming System), where a new class is created from an existing class (parent or base class). With the concept of inheritance, the information in a program can be organized hierarchically. The mechanism by which a class is allowed to derive the properties of a different class is termed inheritance. UpGrad’s Exclusive Software and Tech Webinar for you –Īs the name suggests, inheritance means inheriting properties. Ĭheck out our free courses to get an edge over the competition. In this article, we will be focusing on the concept of inheritance in Java and the types of inheritance in java. They are abstraction, encapsulation, inheritance, and polymorphism. Several concepts are there in Java, with four main concepts to get hold of the language. Despite being a programming language, Java has an API and a runtime environment (JRE) and therefore, is also called a platform. It is a robust, high-level, and object-oriented programming language developed by Sun Microsystems in 1995. The programming language “Java” is widely used in the development of applications for mobile, web, desktop, etc. Object-Oriented Programming Language (OOPs).The WORA attribute of Java is what makes the Java platform independent, as Java is one of the most highly demanded languages. Once compiled, the code can run on all platforms without recompilation. It is also known as “Write Once, Run Anywhere(WORA). Java helps the code developers to quickly write and run the code anywhere without worrying about the computer architecture. J ava is a general-purpose programming language that is class-based and object-oriented.
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