Tech Library For Developers
In this tutorial, we are going to learn What are constructors in java? As constructors are functions which the same name as the class which does not require to class by any object, Where it calls itself explicitly as the object of that class is created. What Are Constructors In Java? Constructors in java are … Read more
We will learn How to Inherit The Properties Of One Class To Another Class In Java? where one class inherited the property of another using the keyword Extends which inherited all the properties of the parent class to the child class. Inheritance Just like its literal meaning inheritance means getting the properties of one(Parents) to … Read more
Here we are going to differentiate between Implements and Extends, and When To Use In Java? Implements are used for interface inheritance and extended if used for class inheritance. What Are Implements? It is a keyword used for inheriting the properties or member functions along with variables in an interface from another interface and that … Read more
In this tutorial, we will learn What is Upcasting and Downcasting In Java? Upcasting which is also known as a generalization or widening is casting in the parent type or from an individual type to a common type whereas down casting means specialization or we can say narrowing means casting to a child type. Or … Read more
Today we will learn How to I Remove Null Elements From An ArrayList In Java? It can be done either by Iterator or simply by using remove if and passing a predicate. Ways Remove Null Values From A Array List There are ways to perform it and here we will discuss both of them one … Read more
Today here we will tell the Difference Between Class And Interface In Java. In objects, we can inherit the classes and can create an Object of Class but it is not possible in the case of the interface. What Is a Class? The class can be defined as a user-defined prototype required for creating the … Read more
PYTHON : OOPs Python is a multi-paradigm programming language. It means that Python supports different programming approach. Python Object Oriented Programming approach (OOPs) is the easiest and the most popular one among them . Introduction to OOPs Object Oriented Programming is referred as a programming approach , where the programs are organised as objects. This … Read more
