Jun 7, 2013 · I have a superclass and I want to use a variable that is inside this superclass into my subclass. How can this be possible? If it is declared protected, it will be accessible. Read …

Nov 25, 2022 · There are two methods to call the instance variables and methods of the superclass (parent class) in the child class. 1. First Method: super keyword is one of the …

For instance variables you can do the following in a method of a subclass: this.variable = value; which is perfectly fine. To modify instances of other classes it's best to use getters and setters. …

Jun 29, 2016 · In order to use the static variable in the child classes you have to use it inside a method. So, you could in essence re-write your Motorcycle class like this: class Motorcycle …

You can try to convert the super class variable to the sub class type by simply using the cast operator. But, first of all you need to create the super class reference using the sub class …

In object-oriented programming, modifying instance variables of a superclass directly from a subclass can be done using the `super()` function, which calls the superclass's methods or …

Apr 21, 2025 · First approach (Referencing using Superclass reference): A reference variable of a superclass can be used to refer to any subclass object derived from that superclass. If the …

You could give the superclass protected data members, and then access those directly from the subclass. However, the professor likely wishes to teach you about how a superclass can …

Apr 17, 2025 · The super keyword in Java is a reference variable that is used to refer to the parent class when we are working with objects. You need to know the basics of Inheritance …

Apr 18, 2023 · Learn how to extend and utilize superclass methods and variables in Java inheritance. Understand the basics, extend a superclass, use variables, and implement …