About object-oriented

1. Introduction

2. Basic content for object-oriented

1. Classes and Objects
   ... I will explain the Classes and Objects giving examples. I want to you understanding the images of those.
   
   
2. Instance-scope attribute and Class-scope attribute
   ... About the instance-scope attribute and the class-scope attribute , I will explain the feature, difference and use.
   
   
3. Instance-scope operation and Class-scope operation
   ... About the instance-scope method and the class-scope method , I will explain the feature, difference and use.
   
   
4. Object-oriented and the Module Cohesion and the Module Coupling
   ... To understand the object-oriented, the understanding of the Module Cohesion and the Module Coupling never failed. I will explain those.
   
   
5. Class diagram , Entity-relationship diagram and Extraction of the class
   ... In this page , I will explain the extraction of the classes , that is thought it is very difficult. I will explain while comparing it with the ER diagram.
   
   
6. Normalization of classes
   ... About the extraction of the classes, there is a case that you can extract it when you think the normalization of classes ( This is the same idea as the normalization of ER diagram. ).
   
   
7. Association
   ... I will explain the association , which is often used but the means are not understood well. The explanation is that you may think the association is a composition.
   
   
8. POA , DOA and Object-oriented Approach
   ... If you don't understand the weak point of the idea before object-oriented , you might repeat the same mistake. I will explain it in this page.
   
   
9. Encapsulation , Attributes and Operations
   ... I will explain the merit of the encapsulation , which is one of the three large elements of object-oriented.
   
   
10. Polymorphism
    ... I will explain the merit , demerit and use of the polymorphism , which is one of the three large elements of object-oriented.
    
    
11. Inheritance
    ... I will explain the attention of the inheritance, which is one of the three large elements of object-oriented. The inheritance have a lot of demerits.
    
    
12. Dependency
    ... I will explain the means , design policy and so on of the dependency , which is often used but the means are not understood well.
    
    
13. Design policy when an exception occurs
    ... The exception design might be personally unrelated to object-oriented. But you should strongly design the exceptions.
    
    
14. Object-oriented and UML
    ... I will introduce the UML , which is a mark method when object-oriented is designed.
    
    
15. Limit of object-oriented
    ... There is actually a design that we can not design by object-oriented. Understanding the limit of the object-oriented is very important when you design.
    
    
16. Designs other than object-oriented
    ... When we create a system ( program ) , It doesn't suffice only by object-oriented design. In this page , I will introduce other designs.
    
    
17. Merit and Demerit of object-oriented
    ... If the object-oriented does not have merits , I think that you cannot study. And if you are an employee , I think that you cannot obtain understanding from the superior. Therefore, I will put the merits and demerits of the object-oriented in order.
    
    

3. Content to do better design in object-oriented

1. Object-oriented design and GRASP Pattern
   ... This page introduces the GRASP Pattern. This is a basic rule of object-oriented.
   
   
2. Entity class , Boundary class , Control class and other classes
   ... This is the explanation of the BCE pattern. Please refer when you design by object-oriented.
   
   
3. Design Pattern and Anti Pattern
   ... In object-oriented, I think that you hear the Design Pattern and the Anti Pattern. In this page, I will explain the merit that you study and introduce it.
   
   
4. Object-oriented and Testability
   ... In object-oriented, I think that you pay attention to the Module cohesion and coupling , regularize entities , consider the responsibility of the class. I think that there is testability in the considerings too.
   
   
5. Design with reference to the Java API reference etc.
   ... When you are designing , are you troubled by the naming of the class and method names do not? Then you should refer other library.
   
   
6. Take qualifications related to object-oriented
   ... The qualified examination will take the money, but also merit. Here describes the merits, then I introduce object-oriented qualifications.
   
   
7. Consideration of the software metrics
   ... If you consider software metrics , you can create better design.

4. Content concerning object-oriented programming

1. Object creation , Dynamic memory allocation and references or pointer to an object
   ... First , you need to understand how an object is treated by computer.
   
   
2. Reference to itself
   ... This is the explain about reference to itself. In the first place, what is reference to itself ?
   
   
3. Substitution of reference type , the behavior when a parameter is passed to function by value
   ... Because functions (methods) are often used , you need to understand. If you understand how an object is treated by computer , it is not difficult.
   
   
4. Timing which an object is deleted
   ... About the timing which an object is deleted. If you understand how an object is treated by computer , this is not difficult also.
   
   
5. Shallow copy and Deep copy
   ... I think that Shallow copy is a concept of object-oriented specific. Because Shallow copy is often used, you need to understand.
   
   
6. Array
   ... This is the explain about Fixed length array, Variable length array and Associative array , those are often used. But , arrays are often used by structured programming... Actually, you need to understand Shallow copy in object-oriented.
   
   
7. Serialize and deserialize objects
   ... This explains about Serialize and deserialize objects.
   
   
8. Immutable object
   ... This explains about Immutable object, that is often used in Java. Further, this explains merits and demerits of immutable object also.
   
   
9. Downcast
   ... I think that you hear this once or more. This explains about Downcast.
   
   
10. The propagation of exceptions
    ... How processes when an exception (error) occurred ? This is not related to object-oriented. But, because it is important, this explains.
    
    
11. Do the static test
    ... To create more quality and low cost program, Static test is important. This explains , What is Static test ? What test do ?, and introduce tools and merits.
    
    

5. Content concerning object-oriented programming with Visual Basic for Applications(VBA)

1. For object-oriented programming ,VBA can not with
2. Understanding the Excel library
3. Standard module ,Class Module ,UserForm