Can abstract classes have constructors in Java?

Can abstract classes have constructors in Java?

Yes, abstract classes in Java can have constructors. They are called when a subclass is instantiated.

What is the purpose of a constructor in an abstract class?

The constructor in an abstract class can initialize fields that are common to all subclasses.

Can I instantiate an abstract class directly?

No, you cannot instantiate an abstract class directly. You must create a subclass that implements the abstract methods.

What happens if I don't define a constructor in the abstract class?

If you don't define a constructor, Java provides a default constructor that initializes the fields.