Can we override methods of final class?

Can we override methods of final class?

You can declare some or all of a class's methods final. You use the final keyword in a method declaration to indicate that the method cannot be overridden by subclasses. ... Note that you can also declare an entire class final. A class that is declared final cannot be subclassed.

Can we override final keyword?

Can We Override a Final Method? No, the Methods that are declared as final cannot be Overridden or hidden. For this very reason, a method must be declared as final only when we're sure that it is complete.

Which method can not be final?

Static methods are covered here. Final methods cannot be overridden because the purpose of the "final" keyword is to prevent overriding. Final cannot be overridden because that is the purpose of the keyword, something that cannot be changed or overridden.

What is a final method?

When a method is declared with final keyword, it is called a final method. A final method cannot be overridden. The Object class does this—a number of its methods are final.We must declare methods with final keyword for which we required to follow the same implementation throughout all the derived classes.

Which method Cannot be overridden?

A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot be overridden. A subclass within the same package as the instance's superclass can override any superclass method that is not declared private or final.

Is constructor by default final?

Constructors are used to initialize an object. ... It is syntactically similar to a method but it has the same name as its class and a constructor does not have a return type. Java constructor can not be final. One of the important property of java constructor is that it can not be final.

Can we override private and final methods?

No, we cannot override private or static methods in Java. Private methods in Java are not visible to any other class which limits their scope to the class in which they are declared.

Can you override a final method in Java?

Can We Override a Final Method? No, the Methods that are declared as final cannot be Overridden or hidden. For this very reason, a method must be declared as final only when we’re sure that it is complete. It is noteworthy that abstract methods cannot be declared as final because they aren’t complete and Overriding them is necessary.

What happens when we try to override final method of the superclass?

If we try to override the final method of super class we will get an error in Java. The method declaration should be the same as that of the method that is to be overridden. The class (subclass) should extend another class (superclass), prior to even try overriding. The Sub Class can never override final methods of the Super Class.

Why is it that we cannot override static and final methods?

The reason for not overriding static method is that Static methods are treated as global by the JVM so there are not bound to an object instance at all. Similarly final methods cant be overriddent because when you say a method as final then it mean you are saying to the JVM that this method cannot be overridden. The wiki has...

Can a method be overridden in a subclass?

A method in a subclass is said to Override a method in its superclass if that method has a signature identical to a method in its superclass. When this method is called by an object of the subclass, then always the Overridden version will be called. In other words, the method which was Overridden in the superclass will become hidden.