Question: Can You Explain Polymorphism?

What is difference between mutation and polymorphism?

A mutation is defined as any change in a DNA sequence away from normal.

In contrast, a polymorphism is a DNA sequence variation that is common in the population..

What are the benefits of polymorphism?

Advantages of PolymorphismIt helps the programmer to reuse the codes, i.e., classes once written, tested and implemented can be reused as required. Saves a lot of time.Single variable can be used to store multiple data types.Easy to debug the codes.

Is polymorphism and overloading same?

-Overloading is when you take an existing method and essentially define it again, but using different parameters which Java sees as a completely different method. -Polymorphism is when you extend the base functionality of a superclass.

What is the difference between overriding and overloading?

When two or more methods in the same class have the same name but different parameters, it’s called Overloading. When the method signature (name and parameters) are the same in the superclass and the child class, it’s called Overriding.

What are the two types of polymorphism?

Polymorphism in Java has two types: Compile time polymorphism (static binding) and Runtime polymorphism (dynamic binding). Method overloading is an example of static polymorphism, while method overriding is an example of dynamic polymorphism.

What is overriding in OOP?

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. … Some languages allow a programmer to prevent a method from being overridden.

Is polymorphism good or bad?

5 Answers. Polymorphism (or inheritance) can lead to problems if your hierarchy becomes too big. … You could try to implement both hierarchies using virtual inheritance but this quickly leads to lots of problems (one of it is also called the “diamond problem”).

Why overriding is called runtime polymorphism?

why overriding is called run time polymorphism? subclass methods will be invoked at runtime. subclass object and subclass method overrides the Parent class method during runtime. its called because it depend on run time not compile time that which method will be called.

What is genetic polymorphism in humans?

Genetic polymorphism is a difference in DNA sequence among individuals, groups, or populations. … Changes in DNA sequence that have been confirmed to be caused by external agents are also generally called ‘mutations’ rather than ‘polymorphisms’. SNPs are the most common type of genetic variations in humans.

What is polymorphism and example?

The word polymorphism means having many forms. … Real life example of polymorphism: A person at the same time can have different characteristic. Like a man at the same time is a father, a husband, an employee. So the same person posses different behavior in different situations. This is called polymorphism.

How is polymorphism used?

Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. … In Java, all Java objects are polymorphic since any object will pass the IS-A test for their own type and for the class Object.

Which definition best describes the concept of polymorphism?

Which among the following best describes polymorphism? Explanation: It is actually the ability for a message / data to be processed in more than one form. The word polymorphism indicates many-forms. So if a single entity takes more than one form, it is known as polymorphism.

What is the biggest reason for the use of polymorphism?

It allows for the implementation of elegant software that is well designed and easily modified. 2. What is the biggest reason for the use of polymorphism? Explanation: Polymorphism allows for the implementation of elegant software.

Which of the following explains polymorphism?

Which of the following explains Polymorphism? Explanation: Polymorphism means overriding the same function by changing types or number of arguments. … Explanation: In multiple inheritance, a single class is inherited from two classes.

What is polymorphism in C?

Polymorphism in C++ The word polymorphism means having many forms. … C++ polymorphism means that a call to a member function will cause a different function to be executed depending on the type of object that invokes the function.

What causes polymorphism?

There may be several causes of polymorphism: polymorphism can be maintained by a balance between variation created by new mutations and natural selection (see mutational load). genetic variation may be caused by frequency-dependent selection. … Genetic drift is also a possible source of genetic variation.

Why must an object oriented programming language support polymorphism?

The goals of Polymorphism in Object-oriented programming is to enforce simplicity, making codes more extendable and easily maintaining applications. Inheritance allows you to create class hierarchies, where a base class gives its behavior and attributes to a derived class.

What is advantage of runtime polymorphism?

The main advantage of Runtime Polymorphism is the ability of the class to offer the specification of its own to another inherited method. This transfer of implementation of one method to another method is possible without changing or modifying the codes of the parent class object.

Why do we need runtime polymorphism?

The good reason for why Polymorphism is need in java is because the concept is extensively used in implementing inheritance.It plays an important role in allowing objects having different internal structures to share the same external interface. polymorphism as stated clear by itself, a one which mapped for many.

How do you explain encapsulation in interview?

Ans: Encapsulation means combining the data of our application and its manipulation in one place. It allows the state of an object to be accessed and modified through behavior. It reduces the coupling of modules and increases the cohesion inside them.