Is multiple inheritance possible in java using interface?

Is multiple inheritance possible in java using interface?

Q) Multiple inheritance is not supported through class in java, but it is possible by an interface, why? As we have explained in the inheritance chapter, multiple inheritance is not supported in the case of class because of ambiguity. However, it is supported in case of an interface because there is no ambiguity.

Does interfaces allow multiple implementation inheritance?

Interfaces provide an alternative to multiple inheritance. Java programming language does not support multiple inheritance. But interfaces provide a good solution. Any class can implement a particular interface and importantly the interfaces are not a part of class hierarchy.

Is it possible to implement multiple inheritance in java?

Java does not support multiple inheritance using classes. “A class can extend only one class but it can implement multiple interfaces.” For example, below inheritance using multiple classes is wrong as two classes cannot be extended or inherited.

Does interface solve the problem of multi inheritance?

Because interfaces specify only what the class is doing, not how it is doing it. The problem with multiple inheritance is that two classes may define different ways of doing the same thing, and the subclass can’t choose which one to pick.

Can we implement multiple interfaces in Java?

Yes, a class can implement multiple interfaces. Each interface provides contract for some sort of behavior.

Can you implement multiple interfaces in Java?

Why does Java allow multiple inheritance between interfaces?

It simply means that your class will adhere to a predefined contract, typically to provide a set of methods related to a certain functionality. Any class can adhere to many such contracts without conflict (unless two of those interfaces define the same method).

How do you implement multiple interfaces in Java?

A Java class can only extend one parent class. Multiple inheritance ( extends ) is not allowed. Interfaces are not classes, however, and a class can implement more than one interface. The parent interfaces are declared in a comma-separated list, after the implements keyword.

How can we achieve multiple inheritance in Java with classes and not interfaces?

The idiomatic solution in Java is to implement multiple interfaces instead of inheriting multiple classes. If you must “inherit” implementation, use composition instead of inheritance. Java doesn’t support multiple inheritance in the sense of class D extends A, B, C .

How does interface achieve multiple inheritance?

An interface contains variables and methods like a class but the methods in an interface are abstract by default unlike a class. Multiple inheritance by interface occurs if a class implements multiple interfaces or also if an interface itself extends multiple interfaces.