Mid-term Review

1
Mid-term Review

• Question types
• True/false
• Short questions
• Multiple choice
• Fix the errors (program)
• Give output to a particular program

2
Content

• HTML
• Static web pages and dynamic pages
• Static vs. dynamic pages
• Client-side vs. server-side pages
• Forms
• VB.NET
• Branching and looping structures
• Functions and subroutines
• Object-oriented Programming

3
HTML

• HTML
• Tag based pure text file
• Only for display purposes
• Some common HTML tags
• ltTABLEgt
• ltOLgt, ltULgt
• ltFORMgt
• Attribute of a tag name-value pairs

4
Static Web Pages

• The client-server structure of the Web
• What is a static web page?
• The process of authoring, uploading and viewing a
  static web page
• What is in a URL?
• Directory structure, relative path, absolute path
• Protocols http, ftp, etc.
• Special characters in URL e.g. 20

5
Dynamic Web Pages

• What does dynamic mean?
• Client-side dynamic pages vs. server-side dynamic
  pages
• Execution time
• Server load
• Browser dependency

6
Forms

• HTML forms and ASP.NET web forms
• The difference between HTML forms and web forms
• Requirements of web forms
• Advantages of using web forms
• Programming some frequently used HTML form
  controls and web form controls
• Dropdownlist
• Text field
• Radiobutton
• Checkboxes

7
More on Forms

• The target attribute
• The same page can be processing input
  Page.IsPostBack

8
ASP.NET and Microsoft .NET

• The .NET structure
• Multiple language capable
• The Common Language Runtime (CLR)
• Microsoft Intermediate Language (MSIL)
• Concept of web services
• Service vs. program
• ASP.NET server-side technology

9
VB.NET Language

• Relationship between VB.NET and ASP.NET
• Languages of ASP.NET C, VB.NET, Java, etc.
• Variables
• Naming conventions
• Operators
• Arithmetic, comparison, assignment

10
VB.NET Arrays

• Declaration
• Initialization
• Indexing of an array 0 to n
• Array and form controls checkboxes

11
VB.NET Control Structures

• Jumping structures
• If/then/else if/end if
• Select/case
• Looping structures
• Do/While
• Do/Until
• For/Next
• For Each/Next
• Converting between two types

12
Subroutines and Functions

• Subroutines
• No return value
• Functions
• With return value
• What does return value mean?
• Pass by value and pass by reference
• By default its pass by value ByVal
• Only a copy of the variable is passed
• ByRef indicates passing by reference
• A reference is passedthe function or subroutine
  has access of the variable itself

13
Variable Scopes

• Local variables
• Sub level
• Block level
• Global variables
• The principle of choosing the type limit the
  scope as small as possible

14
Object-oriented Programming

• Object concept
• Bundling of attributes (properties) and behavior
  (methods)
• Abstraction
• Encapsulation
• Class and objects template and instances

15
Defining Objects

• Variables and properties
• ReadOnly and WriteOnly properties
• Methods subs/functions
• Constructors
• Overloading
• Using objects