Скачать или смотреть Why java doesn't support multiple inheritance #30 Java Tutorial HINDI

Welcome to Tech Talk Tricks and in this video, we will learn about multiple inheritance and also see why java not support multiple inheritance.So watch this video and learn multiple inheritance with suitable example.

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To avoid ambiguity error java does not support multiple inheritance through class. But through the interface, multiple inheritance is possible in java. No java doesn't support multiple inheritance directly because it leads to overiding of methods when both extended class have a same method name.

Why Multiple inheritance is supported in C++ but not in Java?
The purpose of inheritance is same in C++ and Java. Inheritance is used in both languages for reusing code and/or creating is-a relationship. There are following differences in the way both languages provide support for inheritance. 1) In Java, all classes inherit from the Object class directly or indirectly.

When one class extends more than one classes then this is called multiple inheritance. For example: Class C extends class A and B then this type of inheritance is known as multiple inheritance. Java doesn’t allow multiple inheritance. In this article, we will discuss why java doesn’t allow multiple inheritance and how we can use interfaces instead of classes to achieve the same purpose.
Why Java doesn’t support multiple inheritance?
C++ , Common lisp and few other languages supports multiple inheritance while java doesn’t support it. Java doesn’t allow multiple inheritance to avoid the ambiguity caused by it. One of the example of such problem is the diamond problem that occurs in multiple inheritance.

To understand the basics of inheritance, refer this main guide: Inheritance in Java

What is diamond problem?
We will discuss this problem with the help of the diagram below: which shows multiple inheritance as Class D extends both classes B & C. Now lets assume we have a method in class A and class B & C overrides that method in their own way. Wait!! here the problem comes – Because D is extending both B & C so if D wants to use the same method which method would be called (the overridden method of B or the overridden method of C). Ambiguity. That’s the main reason why Java doesn’t support multiple inheritance.

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