Why we need to override method?

The benefit of overriding is: ability to define a behavior that’s specific to the subclass type, which means a subclass can implement a parent class method based on its requirement. In object-oriented terms, overriding means to override the functionality of an existing method.

Where is method overriding used?

Method overriding

• Method overriding, in object-oriented programming, is a language feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its superclasses or parent classes.
• Ada provides method overriding by default.

What is Java overriding?

In any object-oriented programming language, Overriding is a feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its super-classes or parent classes.

What is method overriding in Java with real time example?

Method overriding in java with simple example. Lets consider an example that, A Son inherits his Father’s public properties e.g. home and car and using it. At later point of time, he decided to buy and use his own car, but, still he wants to use his father’s home.

Can we override Java main method?

No, we cannot override main method of java because a static method cannot be overridden.

What is Upcasting and Downcasting in Java?

Upcasting: Upcasting is the typecasting of a child object to a parent object. Instead of all the members, we can access some specified members of the child class. For instance, we can access the overridden methods. Downcasting: Similarly, downcasting means the typecasting of a parent object to a child object.

Can we overload and override the main method?

Yes, We can overload the main method in java but JVM only calls the original main method, it will never call our overloaded main method.

What is method overriding in OOP or Java?

If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in Java. In other words, If a subclass provides the specific implementation of the method that has been declared by one of its parent class, it is known as method overriding.

Why is @override used in Java?

@Override @Override annotation informs the compiler that the element is meant to override an element declared in a superclass. Overriding methods will be discussed in Interfaces and Inheritance. While it is not required to use this annotation when overriding a method, it helps to prevent errors.

Why do we use Override method in Java?

As stated earlier, overridden methods allow Java to support run-time polymorphism . Polymorphism is essential to object-oriented programming for one reason: it allows a general class to specify methods that will be common to all of its derivatives while allowing subclasses to define the specific implementation of some or all of those methods.

How many ways to prevent method overriding in Java?

In short, its not possible to override private and static method in Java. That’s all about 3 ways to prevent a method from being overridden in Java. Remember, though syntactically you can use private, static and final modifier to prevent method overriding, but you should always use final modifier to prevent overriding. final is best way to say a method is complete and can’t be overridden.

What is difference between overloading and overriding in Java?

The key difference between overloading and overriding in Java is that the Overloading is the ability to create multiple methods of the same name with different implementations and Overriding is to provide an implementation for a subclass method that already exists in the superclass.

Can I override a private method in Java?

We can not override private methods in java.

The basic inheritance principle is when we are extending a class we can access all non private members of a class so private members are private to that class only

Know more information about access specifiers here