Objects in Java

You need objects for accessing the members of the class. Let’s see how to declare an objects. Syntax of Creating Objects: class_name object_name; object_name = new class_name(); Example: CodeParent cp = CodeParent(); //Declaration, Instantiation, Initialization. Accessing class members Every time you create an object of the class, the new object gets a copy of every instance variable defined in its class. For accessing the class members check the below syntax, Syntax: Object_name.data_member; Object_name.method_name(argument list); Example: CodeParent cp = new CodeParent(); cp.name = “Name1”; cp.age =…

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Inheritance in Java

Inheritance is an object-oriented programming technique. If you need a class similar to previous one with new additional features, java allows you to use the members of the existing class and add some more features to the new class. It is done by inheritance. The class which you derive is super class, base class or parent class. The class which is derived is sub class, derived class, child class. How to create Derived class, Syntax for creating derived class, class sub_class_name extens base_class_name { }…

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this Keyword in Java

All java classes contain a hidden data member named this. The this member is can be used at runtime to reference the object itself. Each object of a class contains a this pointer that points to the object for which the class member is currently executing. Lets see with a Example: // Welcome to CodeParent.com //Example program for this keyword public class Employee { static String Studnet_Name; static int Studnet_Age; public Employee(String name, int age) { this.Studnet_Name = name; this.Studnet_Age = age; } public static…

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