Object-Oriented Programming
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Course Introduction
Object-Oriented Programming introduces students to the principles and techniques of object-oriented software development. This course covers fundamental concepts such as classes, objects, inheritance, polymorphism, encapsulation, and abstraction. Students will learn how to design and implement programs using object-oriented languages, focusing on modularity, reusability, and maintainability. Practical assignments and projects provide hands-on experience in applying object-oriented principles to solve real-world programming problems, preparing students for advanced programming and software engineering courses.
Recommended Textbook Java Programming 7th Edition by Joyce Farrell
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Page 2
Chapter 1: Creating Java Programs
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Q1) Whenever a method requires multiple arguments, the arguments are always separated with ____.
A) commas
B) periods
C) forward slashes
D) brackets
Answer: A
Q2) Although not a requirement, it is Java standard that class identifiers begin with an uppercase letter and use other uppercase letters to improve readability.
A)True
B)False
Answer: True
Q3) If you modify a class, what are the steps you must take to see your changes in the executing program?
Answer: 1. Save the file with the changes (using the same filename).
2. Compile the class with the javac command. (Actually, you are recompiling the class.)
3. Interpret the class bytecode and execute the class using the java command.
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Chapter 2: Using Data
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Q1) The term ____ refers to the mathematical accuracy of a value.
A) float data
B) real integers
C) significant digits
D) single-precision floating-point number
Answer: C
Q2) The percent sign is the ____ operator.
A) remainder
B) remaining
C) percentage
D) integer division
Answer: A
Q3) ____ occurs when both of the operands are integers.
A) Data modeling
B) Type cast
C) Integer division
D) Unlike assignment
Answer: C
Q4) A(n) ____________________ is a simple data type.
Answer: primitive type
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Chapter 3: Using Methods, Classes, and Objects
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Q1) When you think in an object-oriented manner, everything is a(n)
Answer: object
Q2) Application classes frequently instantiate objects that use the objects of other classes.
A)True
B)False
Answer: True
Q3) A(n) ____ causes a value to be sent from a called method back to the calling method.
A) return statement
B) method statement
C) instantiation
D) inheritance relationship
Answer: A
Q4) The interface is the part of a method that the method's client does not see.
A)True
B)False Answer: False
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Chapter 4: More Object Concepts
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Q1) Object-oriented programmers use the term ____ when a child class contains a field or method that has the same name as one in the parent class.
A) out of scope
B) ambiguous
C) override
D) parent friendly
Q2) When you overload a Java method, you write multiple methods with a shared name. A)True
B)False
Q3) A(n) ____________________ begins immediately after the method declaration and ends at the end of the method.
Q4) Describe and provide an example of overloading.
Q5) It is illegal to declare the same variable name more than once within a block. A)True B)False
Q6) In a Java ____________________ statement, you use a wildcard symbol to represent all the classes in a package.
Q7) A(n) ____________________ is simply a folder that provides a convenient grouping for classes.
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Chapter 5: Making Decisions
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Q1) Why would a programmer use an AND operator when using nested if statements?
Q2) if(qtySold > QUOTA) bonusPay = 50; totalPay = regPay + bonusPay; System.out.println("Your totalPay amount is " + totalPay); Why is the above code incorrect? What would be required to make the code execute correctly?
Q3) > or <
A)relational operator
B)conditional operator
C)Boolean values
D)equality
E)switch statement
F)pipes
G)dual-alternative
H)!
I)AND operator
Q4) Explain the use of the NOT operator.
Q5) Describe how a sequence structure works.
Q6) List and explain the keywords used with the switch statement.
Page 7
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Chapter 6: Looping
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Q1) public class CompareValues
{ public static void main(String[] args)
{
int a = 10, b = 10, c = 11; boolean compare1 = (++b == a); boolean compare3 = (b++ == c); System.out.println("Compare 1 value = " + compare1); System.out.println("Compare 2 value = " + compare2);
Using the above code, what values will appear in compare1 and compare2 when the println commands execute? Describe how the values of compare1 and compare2 change as the statements are executed.
Q2) Why would a loop with altered user input be considered a type of indefinite loop? Give an example.
Q3) When loops are nested, each pair contains a(n) ____________________ loop and an outer loop.
Q4) The ____________________ loop is the posttest loop used in Java.
Q5) Describe how a loop is controlled by a Boolean expression.
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Chapter 7: Characters, Strings, and the Stringbuilder
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Q1) Besides Double and Integer, other wrapper classes such as Float and Long also provide ____ methods that convert Strings to the wrapper types.
A) valueOf()
B) toWrapper()
C) parseString()
D) parseDouble()
Q2) Explain what is needed to declare a String variable and provide an example.
Q3) StringBuilder greeting = new StringBuilder("Day 1"); Using the above StringBuilder, create a setCharAt() method that will change the "1" to a "2" in the String "Day 1". Explain how the setCharAt() method operates.
Q4) The ____________________ class contains standard methods for testing the values of characters.
Q5) The ____ method lets you add characters at a specific location within a StringBuilder object.
A) charAt()
B) insert()
C) append()
D) setCharAt()
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Chapter 8: Arrays
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Q1) How would you use a method that belongs to an object that is part of the array? Use an example and demonstrate with Java code.
Q2) When using parallel arrays, if one array has many possible matches, it is most efficient to place the less common items first so that they are matched right away.
A)True
B)False
Q3) A nonprimitive object
A)array variable
B)reference type
C)elements
D)int
E)Java object names
F)length
G)foreach loop
H)reference types
I)return
Q4) When populating an array with an initialization list, you do not need to use the new keyword or provide an array size. Explain why this is the case.
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Chapter 9: Advanced Array Concepts
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Q1) Write the statement to declare an ArrayList named myVals with a capacity of 15 items. Explain the importance of capacity when working with an ArrayList.
Q2) The ArrayList class ____ method retrieves an item from a specified location in an ArrayList.
A) extract
B) get
C) peek
D) retrieve
Q3) You can add an item at any point in a(n) ____ container and the array size expands automatically to accommodate the new item.
A) ArrayList
B) Array
C) ResizableArray
D) array
Q4) How can you pass a two-dimensional array to a method?
Q5) A method that receives a two-dimensional array uses two ____________________ pairs following the data type in the parameter list of the method header.
Q6) What is sorting and how are objects organized as a result of being sorted?
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Chapter 10: Introduction to Inheritance
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Q1) Sometimes the superclass data fields and methods are not entirely appropriate for the subclass objects; in these cases, you want to ____ the parent class members.
A) negate
B) overrule
C) override
D) hide
Q2) By convention, a class diagram contains the ____ following each attribute or method.
A) data field
B) argument
C) data type
D) class
Q3) ____ polymorphism is the ability of one method name to work appropriately for different subclass objects of the same parent class.
A) Subtype
B) Name
C) Supertype
D) Override
Q4) What is the process of inlining and how is it accomplished in Java?
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Chapter 11: Advanced Inheritance Concepts
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Q1) An alternative to multiple inheritance available in Java
A)dynamic method binding
B)collision
C)GregorianCalendar
D)multiple inheritance
E)equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface
Q2) A concrete class that extends the abstract class Calendar
A)dynamic method binding
B)collision
C)GregorianCalendar
D)multiple inheritance
E)equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface
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Chapter 12: Exception Handling
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Q1) What is an Exception class? Give an example.
Q2) How is an Error class different from an Exception class?
Q3) When a program contains multiple catch blocks, how are they handled?
Q4) ____ exceptions are the type that programmers should anticipate and from which programs should be able to recover.
A) Unchecked
B) Runtime
C) Checked
D) Thrown
Q5) When a program contains multiple ____ blocks, they are examined in sequence until a match is found for the type of exception that occurred.
A) throw
B) finally
C) catch
D) try
Q6) When an exception is a checked exception, client programmers are forced to deal with the possibility that an exception will be thrown.
A)True
B)False
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Chapter 13: File Input and Output
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Q1) After you create a FileSystem object, you can define a Path using the ____ method with it.
A) getPath()
B) createPath()
C) setPath()
D) getDefault()
Q2) Comma-separated values (CSV) is a file format strictly used for working with Java and databases.
A)True
B)False
Q3) ____ is an abstract class used in Java for input and output (IO) operations.
A) System.out
B) Reader
C) System.err
D) OutStream
Q4) You can store data in variables within a program, but this type of storage is temporary.
A)True
B)False
Q5) How can you write the system's newline character to a file in Java?
Page 15
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Chapter 14: Introduction to Swing Components
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Q1) When setting a JFrame's size, part of the area is unusable because it is consumed by the JFrame's title bar and borders.
A)True
B)False
Q2) What are the four JFrame constructors?
Q3) Within an event-driven program, a component on which an event is generated is the ____ of the event.
A) handler
B) driver
C) listener
D) source
Q4) When a user closes a JFrame by clicking the Close button in the upper-right corner, the default behavior is for the JFrame to close and the application to terminate.
A)True
B)False
Q5) What are some of the decisions you must make when extending a JFrame?
Q6) What type of method must you implement when you register an event listener?
Q7) A(n) ____________________ is the default appearance and behavior of any user interface.
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Chapter 15: Advanced Gui Topics
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Q1) What is the parent class of JPanel?
A) Object
B) Component
C) JComponent
D) Container
Q2) Write the statement to establish a GridLayout with three horizontal rows and six vertical columns in a Container named myGrid.
Q3) Any component you place on the screen has a vertical, or x-axis, position as well as a horizontal, or y-axis, position in the window.
A)True
B)False
Q4) When you use BorderLayout, you are required to add components into each of the five regions.
A)True
B)False
Q5) What is an adapter class?
Q6) Write the code to create a scroll pane named myScroll that will display an image named scenery with a vertical scroll bar always present and a horizontal scroll bar as needed.
Page 17
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Chapter 16: Graphics
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Q1) ____ is the amount of space between the bottom of the descent of one line and the top of the characters in the successive line of type.
A) Descent
B) Ascent
C) Leading
D) Height of a line
Q2) The position of a component can be changed by using the ____ method and passing it x- and y-coordinate positions.
A) drawString()
B) setLocation()
C) fillArc()
D) repaint()
Q3) Dimension(Dimension d) creates an instance of Dimension with a width of 0 and a height of 0.
A)True
B)False
Q4) Write the statement to instruct a Graphics object named myGraphic to apply blue paint.
Q5) What parameters does the copyArea() method require?
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Chapter 17: Applets, Images, and Sound
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Q1) The name of a called applet must be a compiled Java applet with a .class file extension.
A)True
B)False
Q2) ____ contains many commands that allow you to format text on a Web page, import graphic images, and link your page to other Web pages.
A) JApplet
B) HTML
C) Swing
D) Applet
Q3) The first method called in any applet
A)current version of HTML
B)init()
C)start()
D)HTML
E)Applet Viewer
F)tags
G)multimedia
H)applet
I)play()
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