Can you instantiate an abstract class directly?

you can override both abstract and normal methods inside an abstract class . only methods declared as final cannot be overridden.

Abstract class, we have heard that abstract class are classes which can have abstract methods and it can’t be instantiated. We cannot instantiate an abstract class in Java because it is abstract, it is not complete, hence it cannot be used .

@Autowired by Type By default, Spring does auto-wire by type . we have a class type UserDao and it’s an implementation of IUserDao interface.

Abstract classes cannot be instantiated , but they can be subclassed. When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class.