In this case, if we call the method with child class object, then the child class method is called. In simple words, overriding means to override the functionality of an existing method. So this is called compile time polymorphism or static binding.Ĭheck this link to read more on Method Overloading Method Overriding:ĭeclaring a method in child class which is already present in the parent class is called Method Overriding. At compile time, Java knows which method to invoke by checking the method signatures. Parameters with different sequence of a data typesĮarlier we have seen method signature. There are three ways to overload a method.Ģ. We can perform polymorphism by ‘Method Overloading’ and ‘Method Overriding’Ĭheck this link to read more on Polymorphism Method Overloading:Ī class having multiple methods with same name but different parameters is called Method Overloading Runtime polymorphism (Dynamic binding) – Method overriding Compile time polymorphism (Static binding) – Method overloadingĢ. There are two types of Polymorphism in Javaġ. We will see detailed explanation with some example programs about Polymorphism in the post related to Polymorphism. All the four may draw different shapes like Circle, Triangle, and Rectangle. Assume we have four students and we asked them to draw a shape. Let’s break the word Polymorphism and see it, ‘Poly’ means ‘Many’ and ‘Morphos’ means ‘Shapes’. Polymorphism allows us to perform a task in multiple ways. We will see detailed explanation with some example programs about Inheritance in the post related to Inheritance.
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Apple MacBook Pro and Lenovo Yoga classes extend the Laptop Class to inherit the properties of the Laptop Class.
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The main purpose of Inheritance is Code Reusability.Īssume we have a Class named Laptop, Apple MacBook Pro, Lenovo Yoga. As per the above definition, the Child class inherits the properties of the Parent Class. Child class is also known as Derived Class. Let’s say we have two classes namely Parent Class and Child Class. Inheritance is a process where one class inherits the properties of another class. Here I give basic idea about these terms in the next post we will see detailed explanation. We need to understand three terminologies for sure in Java such as JDK, JRE and JVM. We will see this in detail in later part of this Java Tutorial. The Java language’s programming is based on the concept of OOP.
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Yes, it runs on a multiple platforms such as UNIX, Windows, Mac OS. Java is a high-level programming language originally developed by Sun Microsystems in 1995. Let’s see what we are going to learn in this Java Tutorial now
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