Home Java javaTutorial Do classes in Java only allow single inheritance?

Do classes in Java only allow single inheritance?

Apr 25, 2024 pm 11:39 PM

Single inheritance is supported in Java, which means that a class can only directly inherit from one parent class, which simplifies the class hierarchy, avoids the diamond problem, and enforces code reuse. Java, on the other hand, allows multi-implementation, which means a class can implement multiple interfaces to obtain multiple functionality.

Do classes in Java only allow single inheritance?

Single Inheritance in Java

Answer: is

Detailed explanation:

In Java, a class can only directly inherit from one parent class. This is called single inheritance. Here are some reasons for this limitation:

  • Simplify class hierarchy: Single inheritance helps keep class hierarchies clear and easy to understand.
  • Avoid the diamond problem: The diamond problem is a conflict in which a class inherits the same members from two parent classes, and the two parent classes inherit from the same A parent class. Single inheritance prevents this situation.
  • Enforce code reuse: By restricting inheritance, Java encourages code reuse because a class can only inherit necessary functionality from another class.

Although only single inheritance is allowed in Java, it supports multiple implementations. This means that a class can implement multiple interfaces. Interfaces are similar to abstract classes, but they have no implementing methods and can be implemented by multiple classes. By implementing multiple interfaces, a class can gain multiple functionality without having to inherit.

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