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Types of Inheritance in Java

On the basis of class, there can be three types of inheritance in java: single, multilevel and hierarchical. In java programming, multiple and hybrid inheritance is supported through interface only. We will learn about interfaces later.

Single Inheritance Example

When a class inherits another class, it is known as a single inheritance. In the example given below, Dog class inherits the Animal class, so there is the single inheritance. File: TestInheritance.java Output:

Multilevel Inheritance Example

When there is a chain of inheritance, it is known as multilevel inheritance. As you can see in the example given below, BabyDog class inherits the Dog class which again inherits the Animal class, so there is a multilevel inheritance. File: TestInheritance2.java Output:

Hierarchical Inheritance Example

When two or more classes inherits a single class, it is known as hierarchical inheritance. In the example given below, Dog and Cat classes inherits the Animal class, so there is hierarchical inheritance. File: TestInheritance3.java Output:

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What is the problem with multiple inheritance in Java?

Java does not support multiple inheritance. This means that a class cannot extend more than one class. Therefore, following is illegal However, a class can implement one or more interfaces, which has helped Java get rid of the impossibility of multiple inheritance.

What are the various types of inheritance in Java?

On the basis of class, there can be three types of inheritance in java: single, multilevel and hierarchical. In java programming, multiple and hybrid inheritance is supported through interface only. We will learn about interfaces later. Note: Multiple inheritance is not supported in Java through class.

How to achieve multiple inheritance in java?

However, Java does not support multiple inheritance. To achieve multiple inheritance in Java, we must use the interface. interface Backend { // abstract class public void connectServer(); } class Frontend { public void responsive(String str) { System.out.println (str + " can also be used as frontend.");

What are the drawbacks of multiple inheritance?

However, there are some drawbacks associated with multiple inheritance. The feature complicates the method dispatch and also brings additional scrutiny to the application. Multiple inheritance would need the awareness of dependencies, especially related to method selections.

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We wantmultiple inheritance from PipeBeam PipeFlow



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Objective C and Java™. Nonetheless users of such languages often complain about having to work around the absence of multiple inheritance. Automating.



Inheritance in Java

Note: Multiple inheritance is not supported in Java through class. When one class inherits multiple classes it is known as multiple inheritance.



Metamodeling semantics of multiple inheritance

In the static typing setting a major trend was inaugurated with Java interfaces [49]