My tech learning and experiences

Object Oriented Programming is a methodology or paradigm to design a program using classes and objects. Following are the concepts of object-oriented programming : 1. Object 2. Class 3. Inheritance 4. Polymorphism 5. Abstraction 6. Encapsulation Object Any entity that has state and behaviour is known as object. For example : chair, pen, table, keyboard, etc. It can be physical and logical. Class Collection of objects is called class. It is a logical entity. Inheritance When one object acquires all the properties and behaviours of parent object i.e. is known as inheritance. It provides code reusability. It is used to achieve runtime polymorphism. Polymorphism When one task is performed by different ways i.e known as polymorphism. In java, we use method overriding and method overloading to achieve polymorphism. Abstraction Hiding internal details and showing functionality is known as abstraction. For example: phone call, we dont know the internal processing. I