1. Java
   1. Java Virtual Machine
   2. Java Language
      1. OOP
         1. Object
            1. Data
            2. Type
            3. primitive
            4. int
            5. byte
            6. short
            7. long
            8. char
            9. float
            10. double
            11. object refercence
            12. array
            13. class
            14. interface
         2. Encapsulation
            1. Package
            2. Class
            3. containment
            4. fields
            5. member fields
            6. static field
            7. static
            8. constant
            9. static final
            10. constructors
            11. defaut constructor
            12. constructor with parameters
            13. methods
            14. contain statements
            15. Nested Class
            16. Inner Class
            17. Member Class
            18. Local Class
            19. Anonymous Class
            20. Static Nested Class
            21. Scope
            22. Access Modifiers
            23. public
            24. protected
            25. (no modifier)
            26. private
         3. Inheritance
            1. Single Inheritance
            2. SubClass
            3. extends
            4. SuperClass
            5. Multiple Inheritance
            6. implements
            7. interface
         4. Abstraction
            1. abstract
         5. Polymorphism
   3. Java API
2. Nguyễn Ngọc Tú - 2009
3. Class
4. Object
   1. Attribute
   2. Method
   3. Function
5. Inheritance
   1. A is B
   2. A has B
   3. A extends B
6. Design Pattern
7. Encapsulation
8. Abstraction
9. Polymorphism
   1. A can do X
   2. B can do X