abstract class implement abstract class

Can a class implement multiple abstract classes?
In ABSTRACT class,we can't extends multiple abstract classes at a time. but In INTERFACE, we can implements multiple interfaces at time.
Therefore , interfaces are used to achieve multiple inheritance in java.
How do you implement an abstract method in another class?
An abstract method is a method that is declared but not implemented in the code.
To call a concrete method of an abstract class, you must first create a subclass that extends the abstract class and then override the abstract methods.
You can then create an instance of the subclass and call it the concrete method.
Abstract Methods can only be implemented using subclasses or classes that implement the interfaces.
These methods are sometimes referred to as subclasser responsibility because they have no implementation specified in the super-class.
Thus, a subclass must override them to provide a method definition.

We cannot create objects of an abstract class. To implement features of an abstract class, we inherit subclasses from it and create objects of the subclass. A subclass must override all abstract methods of an abstract class. However, if the subclass is declared abstract, it's not mandatory to override abstract methods.

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