Collections in Java The collection represents a group of objects. Depending on the method of storing and retrieving. Collections are basically divided into three parts – Set Map List. Where Set does not contain duplicate values, Map contains the key-value type of data whereas List can have a duplicate value Read more…
Polymorphism in Java The word ‘polymorphism’ literally means ‘a state of having many shapes’ or ‘the capacity to take on different forms’. When applied to object oriented programming languages like Java, it describes a language’s ability to process objects of various types and classes through a single, uniform interface. Polymorphism Read more…
Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction. Encapsulation in Java is a mechanism of wrapping the data (variables) and code acting on the data (methods) together as a single unit. In encapsulation, the variables of a class will be hidden Read more…
Abstraction is a process of hiding the implementation details and showing only functionality to the user. Another way, it shows only important things to the user and hides the internal details for example sending SMS, you just type the text and send the message. You don’t know the internal processing about Read more…
What is OOPs ??? OOPs stands for Object-Oriented Programming. An approach to do programming which is based on Objects (or real-life objects). All object-oriented programming languages provide mechanisms that help to implement the object-oriented model. Object-oriented programming (OOP) is at the core of Java. In fact, all Java programs are Read more…
Inheritance is one of the cornerstones of object-oriented programming because it allows the creation of hierarchical classifications. Using inheritance, one can create a general class that defines traits common to a set of related items. This class can then be inherited by other, more specific classes, each adding those things Read more…
The new Keyword The new operator dynamically allocates memory for an object. In the context of an assignment, it has this general form: class-var = new classname ( ); Here, class-var is a variable of the class type being created. The classname is the name of the class that is Read more…
The class is at the core of Java. It is the logical construct upon which the entire Java language is built because it defines the shape and nature of an object. As such, the class forms the basis for object-oriented programming in Java. Any concept must be encapsulated within a Read more…
Meaning of the term Method/Function – Method is a part of a class, and contains a particular set of instructions. In this, you will see how a class can contain not just a main method, but many other methods as well. Normally a method will perform a single well-defined task. Read more…
Jump Statement Java supports three jump statement: break, continue, and return. These statements transfer control to another part of your program. Using break Statement In Java, the break jump statement has three uses. First, as you have seen, it terminates a statement sequence in a switch statement. Second, it can Read more…
