What is method overloading?

Method overloading is a feature that allows a programmer to implement polymorphism in Java. In method overloading, the name of the methods are same, but they differ in number or type of parameters passed to them.

When an overloaded method is invoked, java examines the number or type of parameters passed to the method and matches it with actual arguments to decide which method is to be called.

The example below describes an overloaded method named show():

1. int show(int i) {}
2. void show(String str) {}

Here, method name is the same, but the method at (1) has an int parameter, and the method at (2) has a String parameter.

Note: A parameter is the list of variables passed in a method declaration and arguments are the actual values passed to these parameters when the method is called. Arguments must match with the parameters type and order.

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