The article helps you to understand what is Java, history pf Java, what is Java used for along with its features and concepts. So, click here to read more about Java
►What Is a Class What Is an Object What Is a Constructor What Is a Static Method What Is a Static Variable What Is a Superclass and a Subclass What Is an Abstract Class What Is an Abstract Method What Is an Interface What Is a Trait ...
One of the fundamental principles of OOP is polymorphism, where objects of different classes can be treated as instances of a common superclass. Abstract classes play a key role in achieving this polymorphism by defining method signatures that derived classes must implement. It facilitates generic...
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Techopedia Explains Class A class in Java is a logical template to create objects that share common properties and methods. Hence, all objects in a given class will have the same methods or properties. For example: in the real world, a specific cat is an object of the “cats” class. Al...
Sealed classes are a feature introduced in Java 15 which bring a new level of control and predictability to class hierarchies. A sealed class is a class that explicitly specifies which other classes are allowed to extend it. This offers a way to restrict class hierarchies, making them more pre...
This section describes what is a constructor - a special method to be invoked automatically when a new object is created from a class. The main purpose of the constructor is to provide initial values to object properties.
When a variable is hidden, you can use super.variableName to access the value from a superclass. Here is an example of variable hiding in Java: public class Parent { int age = 30; } class Child extends Parent { int age = 4; public void age() { System.out.println("Parent's age:...
Inheritance in Java- Things to remember Here are some important points about Inheritance in Java which is worth remembering: One subclass can extend only one super class in Java but it can implement multiple interfaces. Aprivate memberof the super class can not be inherited in subclasses like pr...
►Introduction of Class and Object What Is a Class What Is an Object What Is a Constructor What Is a Static Method What Is a Static Variable What Is a Superclass and a Subclass ►What Is an Abstract Class What Is an Abstract Method ...