Application Development with C# Review Questions
Course Introduction
This course offers an in-depth exploration of application development using the C# programming language. Students will learn the fundamental concepts of C#, including object-oriented programming, data structures, exception handling, and event-driven architecture. The curriculum covers both desktop and web application development with an emphasis on practical application through hands-on projects. Topics include graphical user interface (GUI) design using Windows Forms or WPF, database connectivity via ADO.NET or Entity Framework, and the implementation of robust, maintainable code in real-world scenarios. By the end of the course, students will have experience designing, coding, testing, and debugging C# applications tailored to solve complex problems.
Recommended Textbook
C# Programming From Problem Analysis to Program Design 4th Edition by Barbara Doyle
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15 Chapters
1124 Verified Questions
1124 Flashcards
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Chapter 1: Introduction to Computing and Programming
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Sample Questions
Q1) During which phase of software development should questions be asked to clarify the problem definition?
A) analysis
B) design
C) coding
D) testing
Answer: A
Q2) System software includes software such as the operating system.
A)True
B)False
Answer: True
Q3) C# has a set of rules,called _________,that must be followed. Answer: syntax
Q4) Classes and class diagrams are used most often with the structured procedural approach to software development.
A)True
B)False
Answer: False
Q5) An object is a(n)________ of the class. Answer: instance
Page 3
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Chapter 2: Data Types and Expressions
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Sample Questions
Q1) The symbols +=,-=,and *=,compound operators in C#,are used to provide a shortcut way to write assignment statements using the result as part of the computation.
A)True
B)False
Answer: True
Q2) One convention used for naming identifiers is called Pascal case. This convention requires that ____.
A) the first letter be lowercase with the first letter of each subsequent word capitalized
B) all letters appear in uppercase characters
C) the first letter be uppercase with the first letter of each subsequent word capitalized
D) all letters appear in lowercase with words separated by an underscore
Answer: C
Q3) ____________ is the universal character-encoding schema that provides a unique number for every character in many different languages.
Answer: Unicode
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4
Chapter 3: Methods and Behaviors
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Sample Questions
Q1) Methods are the members of a class that perform an action,and through writing methods you describe the behavior of data.
A)True
B)False
Answer: True
Q2) In order to indicate a value is constant and cannot be changed,the keyword constant is added.
A)True
B)False
Answer: False
Q3) The ____ specifies what kind of information is returned when the body of the method is finished executing.
A) access modifiers
B) parameters
C) static modifier
D) returnType
Answer: D
Q4) When naming local variable identifiers and parameters,use ____________.
Answer: camel casing
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Chapter 4: Creating Your Own Classes
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Sample Questions
Q1) C# is an object-oriented language.All the code for an application must be placed in a(n)____.
A) file
B) object
C) class
D) method
Q2) The body of the constructor methods consist primarily of ____________.
Q3) When you define a class method,you define its characteristics or fields in terms of the data.
A)True
B)False
Q4) Use a type prefix,such as C for class name.For example,a student class should be named CStudent.
A)True
B)False
Q5) When you define methods of a class,you are defining its behaviors,in terms of what kinds of things it can do.
A)True
B)False
Q6) Constructors are used to ____________ a class.
Page 6
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Chapter 5: Making Decisions
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Sample Questions
Q1) String operands can be compared using the relational symbols.They are compared lexicographically using their Unicode character representation.
A)True
B)False
Q2) When strings are compared,the first character in the first operand is compared against the first character in the second operand.
A)True
B)False
Q3) The ternary operator ( ? : )provides another way to express a simple if...else selection statement.
A)True
B)False
Q4) Looking at the example above,when phoneDigit has a value of 'Q',what value is stored in num?
A) 1
B) 0
C) Q
D) not enough information given
Q5) The switch statement also goes by the name ____________.
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Chapter 6: Repeating Instructions
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Sample Questions
Q1) A(n)____________ is a loop that has no provisions for termination.
Q2) The do...while statement is a posttest loop,which means that the conditional expression is tested before any of the statements in the body of the loop are performed.
A)True
B)False
Q3) How many times will be loop body be executed?
A) 0
B) 4
C) 5
D) 6
Q4) Class diagrams show the data,method,and property members of a class.
A)True
B)False
Q5) The _____________ method of the MessageBox class displays a predefined dialog box that can contain text,captions for the title bar,special buttons,and icons.
Q6) The only posttest loop structure available with C# is the ____________ loop structure.
Q7) A sentinel value is a(n)____________.It is a value that should not be processed.
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Chapter 7: Arrays
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Sample Questions
Q1) All arrays are objects of the base type Array class.
A)True
B)False
Q2) With the declaration above,price[5] generates a runtime error.
A)True
B)False
Q3) To create an array to hold the 5 numeric scores,you could write ____________.
Q4) If an array named num is dimensioned to hold 10 values,what happens if you write num[100] = 50;?
A) A compilation error will be generated
B) A runtime error will be generated
C) 50 will be stored at the 100th indexed location
D) 50 will be stored at the last legal location
Q5) In C# the length of an array cannot be changed.After it is instantiated with a length,dynamic resizing is not an option.
A)True
B)False
Q6) The Clear( )method of the Array class sets all integer elements to zero.
A)True
B)False
Page 9
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Chapter 8: Advanced Collections
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Sample Questions
Q1) If an array named num is dimensioned to hold 10 values in 5 rows and 2 columns,how would you store 50 in the first physical row and first physical column?
A) num[ 1, 1 ] = 50;
B) num[ 0 , 0 ] = 50;
C) num = 50 [ ] ;
D) num5 = 50;
Q2) The ArrayList class requires you to add and remove elements to/from the structure using Push( )and Pop( )methods.
A)True
B)False
Q3) Which method in the string class might be useful to create a table with values number aligned?
A) Align( )
B) Concat( )
C) PadLeft( )
D) Split( )
Q4) The string is a reference type in C#.
A)True
B)False
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Chapter 9: Introduction to Windows Programming
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Sample Questions
Q1) It is important to name the button object,because once named ____.
A) program statements can be written to reference it.
B) it can be placed on the form.
C) properties such as background color and text can be set.
D) it becomes part of the tab index order.
Q2) Most classes,including control classes such as Label,Button,and TextBox,used with Windows application are defined in the ____________ namespace.
Q3) Probably the most commonly used control for both input and output is the button because it adds additional functionality to an application.
A)True B)False
Q4) Probably the most commonly used control is the ____________.It can be used to enter data or display text during run time.
Q5) Using the ____________ feature in Visual Studio,controls can be more easily aligned when they are initially added to the form.
Q6) An example of an event that might be registered is the "Press the enter key."
A)True B)False
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Chapter 10: Programming Based on Events
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Sample Questions
Q1) Menus offer the advantage of requiring less real estate on the screen.
A)True
B)False
Q2) To retrieve multiple selections from a ListBox control,you can use all of the following properties EXCEPT ____.
A) SelectedItems
B) SelectedIndices
C) Text
D) Items
Q3) The ____________ event fires when a key is pressed while the control has focus.
Q4) You change the appearance of the tabs for a TabControl object using the ____ Collection Editor.
A) TabPage
B) Controls
C) Properties
D) Text
Q5) The ____________ property can be set for RadioButton controls to indicate which button is initially selected.
Q6) The default event-handler method for CheckBox objects is ____________.
Page 12
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Chapter 11: Advanced Object-Oriented Programming
Features
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Sample Questions
Q1) A(n)____________ method uses the same identifier as other method,but has a different number and/or type of parameter from the other one.
Q2) To override a method,the base method may include any of the following keywords,EXCEPT ____.
A) virtual
B) abstract
C) interface
D) override
Q3) Components that can be referenced from any number of applications are created as class library files with a dynamic link library (DLL)extension.
A)True
B)False
Q4) ____________ is an object oriented feature that packages data attributes and behaviors into a single unit,thus hiding implementation details.
Q5) Multiple classes can implement the same interface,but a class can implement only one interface.
A)True
B)False
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Chapter 12: Debugging and Handling Exceptions
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Sample Questions
Q1) The Visual Studio Debugger provides commands for controlling the execution of your application.
A)True
B)False
Q2) The ____ property associated with exception objects returns a string describing the exception.
A) Text
B) Message
C) StackTrace
D) Name
Q3) When more than one catch clause is included,____.
A) the order of the placement of these clauses is important
B) you must write a finally block
C) you must include System.Exception as one of the catch clauses
D) all of the above
Q4) Exceptions are unexpected conditions that happen frequently.
A)True
B)False
Q5) ____________ as a methodical process of finding and reducing bugs or defects in a computer program.
14
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Chapter 13: Working with Files
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Sample Questions
Q1) With the above code segment,how could you programmatically avoid having a FileNotFoundException or DirectoryNotFoundException exception thrown?
A) invoke File.Exists( ) before the while loop
B) invoke File.Exists( ) inside the while loop
C) include a try...catch block
D) test for File.Exists( ) instead of null
Q2) A structure is a special form of value type that supplies alternate names for the values of an underlying primitive type.
A)True
B)False
Q3) The ____________ class makes it easy to write data to a file because it has implementations for the Write( )and WriteLine( )methods.
Q4) Instead of hard coding the actual filename and file path,you could prompt the user for the name of the file using subclasses of the FileDialog class.
A)True
B)False
Q5) Archive is a(n)____________ value for the Attributes property of the File class.
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Page 15
Chapter 14: Working with Databases
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Sample Questions
Q1) When you place an @ in front of a string,the string becomes a(n)____.
A) comment
B) verbatim string
C) numeric value
D) argument
Q2) After values have been retrieved using the OleDbDataReader,you can send the ordinal location of data fields as arguments to methods of the OleDbDataReader class.
A)True
B)False
Q3) The above connection string is associated with which type of database?
A) Jet
B) SQL Server
C) Oracle
D) Access
Q4) When you select the TableAdapter object (from the component tray)and view its properties,you will not see the SelectCommand,InsertCommand,UpdateCommand,and DeleteCommand properties.In order to change the SQL statements associated with those properties,you need to use the DataSet Designer and modify the ____________ for these properties.
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Chapter 15: Web-Based Applications
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Sample Questions
Q1) The only event listed below that is automatically posted back to the server when the event is triggered is the ____.
A) ListBox SelectedIndexChanged event
B) TextBox KeyPress event
C) RadioButton CheckedChanged event
D) Button Click event
Q2) The ASP.NET model extends the HTML file by including script code in the same file.
A)True
B)False
Q3) You cannot use the drag-and-drop construction approach of Visual Studio to develop Web-based applications.This approach can only be used with Windows applications.
A)True B)False
Q4) The Calendar control has a number of properties including the ____________ property that is used to pick the month,day,and year for display.
Q5) ____________ is a language formatted in XML that is used to describe the capabilities of a Web service and is itself part of that service.
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