1. Chapter 4 (part 2)

2. Topic Outline Method overloading Usage of this reference
Passing parameter:
Object as parameter
Object as method type
Array of objects
Composite objects

3. Method Overloading

4. Method Overloading

5. Method Overloading

6. Method Overloading Example program that has 4 methods which receive
different types of parameter list.
All methods are named as overloadDemo.

8. Method Overloading
Try It!

9. The this reference
this is a reference variable that refers to the current object.
Known as self-referencing pointer
To avoid naming conflicts – declare the name of instance variables and local variables are same

12. this also used to invoke another constructor

14. Passing Parameter

15. Passing Parameter
The power of method is its ability to work with parameters.
When calling a method, arguments need to be provided.
When method with parameter is invoked, the value of the arguments is passed to the parameter.
Two types of passing parameter:
Pass by value
Pass by reference

16. Object As Parameter
When an object reference is passed into a method, a copy of the reference is actually manipulated by the method. So, the method can change the attributes of the object.
Passing object as an argument is actually passing the reference of the object.

17. Objects As Parameter

18. Example