Method overloading

In this lecture we will learn: Parameters of a method Method overloading in Java When does method overloading happen? Different ways of method overloading in Java #1 It is not compulsory that a class should have methods and variables. It will be empty also. The parameters that except the values in a method should be equal to the parameters that we pass in a method to call it. As it might create a problem if the parameters excepted by the method are not equal to the number of values passed. So, to overcome this problem we do overloading. As we can have two methods we the same name but different parameters. Either the number of parameters or the type of parameters should be different. Method with the same name and parameters but with different return types will also not work. The return type does not matter here. Method name and parameters matter only. #2 Method overloading:- In Java, there can be more than one method with the same name but the number of parameters or type of parameters should be different. Method overloading is also known as Compile-time Polymorphism, Static Polymorphism, or Early binding in Java. In Method overloading compared to parent argument, child argument will get the highest priority. #3 Different ways of Method Overloading in Java:- 1. Changing the number of parameters Method overloading can be achieved by changing the number of parameters while passing to different methods. 2. Changing Data Types of the Arguments If methods have the same name but have different parameter types then also methods are considered as overloaded. 3. Changing the Order of the Parameters of Methods By rearranging the parameters of two or more overloaded methods.