Define Method Overloading

Method Overloading is a feature in programming that allows a class to have more than one method having the same name, but with different parameter lists. It is a way of implementing polymorphism in object-oriented programming. The key to method overloading is a method's parameter list which includes the number of parameters, types of parameters, and the order of parameters.

Here are the steps to define method overloading:

1. Define a class: The first step is to define a class since methods exist within a class.

public class MyClass {
    // class body
}

2. Define methods with the same name: Within the class, you can define methods that have the same name but different parameter lists.

public class MyClass {
    void myMethod(int x) {
        // method body
    }

    void myMethod(double x) {
        // method body
    }

    void myMethod(int x, int y) {
        // method body
    }
}

In the above example, the method myMethod is overloaded with three different parameter lists.

3. Call the methods: You can then call these methods using an object of the class. The correct method will be called based on the parameters you pass in.

public class Main {
    public static void main(String[] args) {
        MyClass obj = new MyClass();
        obj.myMethod(10); // calls the first method
        obj.myMethod(10.5); // calls the second method
        obj.myMethod(10, 20); // calls the third method
    }
}

In the above example, the correct myMethod is called based on the parameters that are passed in when the method is called. This is how method overloading is defined and used in programming.