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In object oriented programming language, it is possible to override classes.
and the advantage over this is we can just show the or run the methods of the base
class.
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Example of overriding in java?
For example: class Speak { void SayHello(){}; } class Boy extends Speak { void SayHello(){System.out.println("I'm a boy");} } So overriding is usual to rewrite the motheds in subclasses .In subclsses ,you can override the methods acceded from his parent class.
When do you declare a method or class abstract in java?
when overriding of a class or a method is necessary, they can be declared as abstract
What is the scope of method overloading and overriding?
Overloading happens when you have multiple methods in the current class that have the same name but different signature. The scope of method overloading is "Within the current class" Overriding happens when your current class extends another class (the parent class) and provides implementation for a method that is already available in the parent class. The scope of method overriding too is "Within the current class"
What is the purpose of method overriding?
Assuming class A has a method named getXXX() and class B is a sub class of class A. Now, if we write a method with the same name getXXX() in class B, with exactly the same signature as class A, it is called overriding a method. The method getXXX() in class A becomes the overridden method.
What are overriding objectives?
The objective of overriding in Java is to provide features for a class to define its own behavior even for cases where the super class that it extends has already defined one. There might be cases where we want a specific behavior in our class but if the super class already has a method that does the same thing we wont be able to implement our behavior. Hence this overriding concept is available which lets us write our own implementation which would mask the code in the super class and let us run our logic.
When the concept of method overriding is necessary?
concept of overriding is very important as due to overriding the derived class can use the function of the base class! when the function has same name and prototype in both the classes(base and derived) then the derived class can use the funtion of base class!
How is hiding method different from overriding method in c sharp?
Hiding means a class cannot see the definition. Overriding implies that a class must see that to "override"
Example of overriding in java?
For example: class Speak { void SayHello(){}; } class Boy extends Speak { void SayHello(){System.out.println("I'm a boy");} } So overriding is usual to rewrite the motheds in subclasses .In subclsses ,you can override the methods acceded from his parent class.
How you compare and contrast overloading and overriding methods in java?
Method overloading is when you have multiple methods in a class that have the same name but a different signature. Method overriding is similar to method overloading, with a small difference. In overriding, a method in a parent class is overridden in the child class. The method in the child class will have the same signature as that of the parent class. Since the method in the child class has the same signature & name as the method of its parent class, it is termed as overriding. In situations where you may have to explicitly call the parent class method you can use the "super" keyword and for explicitly calling the current objects method you can use the "this" keyword.
When do you declare a method or class abstract in java?
when overriding of a class or a method is necessary, they can be declared as abstract
What is overriding in c?
Overriding relates to derived classes, where the derived class provides a new implementation for a method declared in the base class. The override is said to be a more-specialised implementation of the base class method, which is itself described as being a generic method. However, the derived class method can still call the base class method, if required.When the designer of a class can predict that their class will be derived from, they will normally provide virtual methods. These methods are expected to be overridden by the derived class. Overriding a non-virtual method can have side effects if the method is also overloaded. Overriding just one overloaded method will effectively hide all the other overloads in the base class, which may be undesirable.
What is method overriding and overloading in java?
Overloading is the means by which we can provide two or more different definitions of the same method in the same namespace. Overriding is the means by which a derived class may redefine the meaning of a base class method.
What is the scope of method overloading and overriding?
Overloading happens when you have multiple methods in the current class that have the same name but different signature. The scope of method overloading is "Within the current class" Overriding happens when your current class extends another class (the parent class) and provides implementation for a method that is already available in the parent class. The scope of method overriding too is "Within the current class"
What is the purpose of method overriding?
Assuming class A has a method named getXXX() and class B is a sub class of class A. Now, if we write a method with the same name getXXX() in class B, with exactly the same signature as class A, it is called overriding a method. The method getXXX() in class A becomes the overridden method.
What are overriding objectives?
The objective of overriding in Java is to provide features for a class to define its own behavior even for cases where the super class that it extends has already defined one. There might be cases where we want a specific behavior in our class but if the super class already has a method that does the same thing we wont be able to implement our behavior. Hence this overriding concept is available which lets us write our own implementation which would mask the code in the super class and let us run our logic.
What is function overriding in Java?
Method overriding is similar to method overloading, with a small difference. In overriding, a method in a parent class is overridden in the child class. The method in the child class will have the same signature as that of the parent class. Since the method in the child class has the same signature & name as the method of its parent class, it is termed as overriding. In situations where you may have to explicitly call the parent class method you can use the "super" keyword and for explicitly calling the current objects method you can use the "this" keyword.
Difference between inheriting a method and overriding?
Inheriting a method means - a class is able to use a method that is declared in its parent class. Because of inheritance we need not re-declare the method in the child class again but still use it as it is. Overriding means re-declaring a method that is already available in the parent class in the child class to alter its features as per the requirement in the child class.
