MODIFIER
· Modifier
· private/ default/ protected/ public
· Non modifier
· final/ static/ abstract
· transient/ volatile/ native/ synchronized
I. Class Modifier
- A class (A) can access to other class (B) :
- Create a new object of class B
- Extend class B
- Access to method/ property in class B
Default Access
- Do not use public keyword when create a new class.
- Can be accessed by other classes in same package
- Can not be accessed by other class if not in same package
·
Public Access
- Use public keyword when create a new class
- Allow all class from other packages access and create new object
Final Class
- Can not be extended
- Other class can access via create new object
Abstract Class
- Do not allow initialize an object if it's abstract class
- Can be used via extend
II. Method/ Property Modifier
