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Articles tagged with #oops
An exception is an unwanted or unexpected event that occurs during the execution of the program that disrupts the normal flow. class Test { public static void main(String[] args) { System.out.println("1"); System.out.println("...
"this" keyword is the reference variable that refers to the current object Consider the code below: class Test { int i; void setValue(int x) { i=x; } void show() { System.out.println(i); } } class Xyz { ...
Encapsulation is a method of wrapping data and methods together as a single unit. In encapsulation, the variables of a class are hidden from other classes and can be accessed only through the methods of their current class. This concept is known as d...
Abstraction is hiding the internal implementation and just highlighting the setup service that we are offering. As in the case of a car, relevant parts like the steering, gear, horn etc.. are shown to driver because they are necessary for driving. Bu...
Polymorphism means "many forms", and it occurs when we have many classes that are related to each other by inheritance. There are two types of polymorphism in Java: compile-time polymorphism runtime polymorphism We can perform polymorphism in jav...
There are mainly two types of relationships between classes in JAVA Inheritance (IS-A) Association (HAS-A) Inheritance In inheritance, the child class object carries the body of the parent class when initiated. This is achieved using the "extend...
