INHERITANCE
What is Inheritance? Extending the parent class properties. It will inherit all the methods and properties Note: By default every class is a subclass of Object class. How may types of inheritance are present? i) Single level inheritance: ii) Multi level inheritance: iii)Multiple inheritance: One class is extending 2 classes iv)Hierarchal inheritance: One parent have might have many childs Why java doesn't support multiple inheritance? There will be an Ambiguity issue. Consider there are 3 Classes A,B,C and there is show() method in A and B and C extends A and B. Now if we create a object for Class C and then call the show() method, It will confuse which method to call because the method exists in both the classes. So java doesn't support Multiple Inheritance . But we can make this happen using Interfaces C extends A,B