Test 3 Review

We will have 110 minutes for this test.

It is approximately the same size as the previous two tests, so people should have enough time to finish it.

It includes true-false and multiple choice questions as well as some short answers and one medium-sized coding question.

You may want to look at the earlier exams and at the quizzes, and you should make sure you understand what we did in the homework assignments.

You may want to review interfaces, graphics, mouse events and images.

Topics

The topics involved are taken from the entire semester:

• C# structure
  • properties and indexers
  • interfaces
  • delegates and events
  • exceptions
  • forms
  • miscellaneous topics such as enumerations, collections, foreach and reference types
  • object-oriented structure topics such as sealed classes and static classes

• Database work
  • How do we connect to a database?
  • What are methods used for various kinds of SQL instructions?
  • How do we work with the data returned by a query?

• Minor topics
  • charts
  • graphics
  • mouse events
  • images

You can expect a few points of questions on each of various topics.

Things to think about

You should probably be aware of the namespaces needed for various classes such as StreamReader and MySqlCommand.

You should understand the sequence of events involved in using a MySQL database, including how to process data from a query.

You should know how to write code for get and set accessors for properties and indexers.

You should understand the sequence of events in exception handling: try, throw, catch, finally. Do we always need all of these? How is "using" involved?

You should understand the ideas involved in using events and delegates.

If you have time, try inventing examples for yourself of:

• an interface and a class which implements it

• a delegate and at least two methods to attach to it

• a user-defined exception class

• a form application to draw nested rectangles and fill them with color

• invent an array of 52 integers with values 0 to 51, invent a way to put them in random order, and print the list

• a form application to create a pie chart with 8 slices of randomly-chosen sizes