You ____________ override the toString() method in any class you create. a. Cannot b. Can c. Must d. Must implement StringListener to
The Object class equals() method takes ____________. a. No arguments b. One argument c. Two arguments d. As many arguments as you need
Assume that the following statement appears in a working Java program and that the equals() method has been overridden correctly in things class: if(thing.equals(anotherThing)) x = 1; You know that...
The Object class equals() method considers two object references to be equal if they have the same ____________. a. Value in all data fields b. Value in any data field c. Data type d. Memory address
Each Java subclass has the ability to inherit from ____________ parent class(es). a. Zero b. One c. Two d. Any number of
The alternative to multiple inheritance in Java is known as a(n) ____________. a. Superobject b. Abstract class c. Interface d. None of the above
When you create a class that uses an interface, you include the keyword ____________ and the interfaces name in the class header. a. interface b. implements c. accoutrements d. listener
An abstract class Employee has two subclasses, Permanent and Temporary. The Employee class contains an abstract method named setType(). Before you can instantiate Permanent and Temporary objects,...
You can instantiate concrete objects from a(n) ____________. a. Abstract class b. Interface c. Either a or b d. Neither a nor b
In Java, a class can ____________. a. Inherit from one abstract superclass at most b. Implement one interface at most c. Both a and b d. Neither a nor b
You created a Quiz class that contains an array of 10 multiplechoice questions to which the user was required to respond with an A, B, or C. At the time, you knew how to handle the users response if...
A jframe is a descendant of each of the following classes except the ____________ class. A. Component B. Container C. Jar D. Window
Unlike a window, a jframe ____________. A. Has a title bar and border B. Can be made visible C. Can have descendants D. Can hold other objects
When a user closes a jframe, the default behavior is for ____________. A. The jframe to close and the application to keep running b. The jframe to be hidden and the application to keep running c. The...
Suppose that you create an application in which you instantiate a JFrame named frame1 and a JLabel named label1. Which of the following statements within the application adds label1 to frame1? a....
The arguments required by the font constructor include all of the following except ____________. A. Typeface b. Mode c. Style d. Point size
Within an event-driven program, a component on which an event is generated is the ____________. A. Performer B. Listener C. Source D. Handler
A class that will respond to button-press events must use which phrase in its header? a. Import java.event b. Extends action c. Extends j frame d. Implements action listener
A JFrame contains a JButton named button1 that should execute an actionPerformed() method when clicked. Which statement is needed in the JFrame class? a. addActionListener(this); b....
A class can implement ____________. A. One listener B. Two listeners C. As many listeners as it needs D. Any number of listeners as long as they are not conflicting listeners
When you write a method that reacts to JCheckBox changes, you name the method ____________. a. itemStateChanged() b. actionPerformed() c. checkBoxChanged() d. Any legal identifier you choose
If a class contains two components that might each generate a specific event type, you can determine which component caused the event by using the ____________ method. a. addActionListener() b....
Build a Gantt chart by using Microsoft Project based on the list of tasks as shown in Figure C-16. This mini-project is to build part of the user interface for a new system. The following Gantt...
The work breakdown structure shown in Figure C-17 is for a final iteration to deploy a new application in a new data center. The ABC company has a contract with Super ISP to host the system, and the...
Perform the following unsigned multiplication in binary using a minimum number of bits required for each decimal number using pencil and paper method: 12 x 52
Find the odd parity bit for the following binary message to be transmitted: 10110000.
Repeat Problem 2.20 using repeated addition. Data From Problem 20 Perform the following unsigned multiplication in binary using a minimum number of bits required for each decimal number using pencil...
For the format used in Exercise 5.19, what decimal number is represented by each of the following numbers in floating point format? a. C2F00000 16 b. 3C540000 16 Data from Exercise 5.19 Convert the...
Draw a logic diagram to implement F = ABCDE using only 3-input AND gates.
Using truth tables, express each one of the following functions and their complements in terms of sum of minterms and product of maxterms: (a) F = ABC + ABD + A B C + ACD (b) F = (W+ X + Y)(WX + Y)...
Minimize each of the following functions using a K-map: (a) F(A, B, C) = m(0, 1, 4, 5) (b) F(A, B, C) = m(0, 1, 2, 3, 6) (c) F(X, Y, Z) = m(0, 2, 4, 6)
Minimize each of the following expressions for F using a K-map. (a) F(A,B,C) = BC + ABC + ABC (b) F(A,B,C) = ABC + BC (c) F(A,B,C) = AC + A(BC + BC)
Figure 13-34 is an SSD for the use case Record dental procedure in the dental clinic system. Do the following: a. Develop a first-cut sequence diagram that only includes the actor and problem domain...
What is the three-character extension appended to solution filenames in Visual Basic? a. .prg b. .sln c. .src d. .vbs
Explain the difference between a forms Text property and its Name property.
How do you verify the name of the startup form?
A buttons caption should be entered using sentence capitalization. a. True b. False
Which of the following statements is false? a. The text contained in an identifying label should be left-aligned within the label. b. An identifying label should be positioned either above or to the...
Create a Windows Forms application. Use the following names for the project and solution, respectively: Jackets Project and Jackets Solution. Save the application in the VB2017\Chap01 folder. a....
What is the id used for text box names? A. Tex B. Text C. Txt D. None of the above.
If necessary, complete Exercise 3. Use Windows to rename the Jacket Solution folder to Jackets Solution-Modified. Open the Jackets Solution.sln file contained in the VB2017\ Chap01\Jackets...
What is the ID used for label control names? a. lab b. lal c. lbe d. None of the above.
Label controls that display program output typically have their BorderStyle property set to _____________________. a. BorderSingle b. Fixed3D c. FixedSingle d. None
Which of the following should have their names changed to more meaningful ones? A. All controls that will be coded B. All controls that will be referred to in code C. The form D. All of the above.
Define sentence capitalization.
Listed below are the five steps for planning a Windows Forms application. Put the steps in the proper order by placing a number (1 through 5) on the line to the left of the step....
Which flowchart symbol represents a processing task? a. Circle b. Oval c. Parallelogram d. Rectangle
Create an application that calculates and displays two raise amounts, which are based on an employees current salary. The current salary will be entered by the user. The two raise rates are 5% and...
The expression intNum * intNum * intNum is equivalent to which of the following expressions? a. intNum ^ 3 b. intNum * 3 c. intNum ^ 2 * intNum d. Both a and c.
What is the result of the following expression: 3 * 5 \ 2 + 30 / 5? a. 7.5 b. 13 c. 13.5 d. None of the above.
Which of the following is a computer memory location whose value does not change during run time? A. Literal B. Named constant C. Static constant D. Variable
Create an application that calculates and displays the percentage of students receiving a grade of P (for Pass) and the percentage of students receiving a grade of F (for Fail). Before creating your...
If Option Strict is set to On, which of the following statements assigns the sum of two Integer variables to the Text property of the lblTotal control? a. lblTotal.Text = (intN1 + intN2).ToString b....
Which of the following statements prevents data loss due to implicit type conversions? a. Option Convert Off b. Option Explicit On c. Option Implicit Off d. Option Strict On
Evaluate the following expression: 13 > 12 OrElse 6 < 5. a. True b. False
What will the code in Figure 4-53 assign to the intCost variable when the intAge variable contains the number 65? a. 0 b. 5 c. 8 d. 10 If intAge
Where can a nested selection structure appear? a. Only in an outer selection structures false path b. Only in an outer selection structures true path c. In either of an outer selection structures...
Which of the following Case clauses is valid in a Select Case statement whose selectorExpression is an Integer variable named intAge? a. Case Is > 21 b. Case 21, 65 c. Case 1 To 10 d. All of the...
What is the minimum number of radio buttons in a group? a. One b. Two c. Three d. There is no minimum number of radio buttons.
If a check box is not selected, what value is contained in its Checked property? a. True b. Unchecked c. False d. Unselected
What will the code in Figure 4-54 assign to the lblStatus control when the strLevel variable contains the string 2? a. Bronze b. Gold c. Platinum d. Silver "2" Then If strLevel = "1" OrElse strLevel...
What will the code in Figure 4-54 assign to the lblStatus control when the strLevel variable contains the string 5? a. Bronze b. Gold c. Platinum d. Silver If strLevel = "1" OrElse strLevel "2" Then...
What will the code in Figure 4-54 assign to the lblStatus control when the strLevel variable contains the string 10? a. Bronze b. Gold c. Platinum d. Silver If strLevel = "1" OrElse strLevel "2" Then...
Which capitalization should be used for the text appearing in check boxes and radio buttons? a. Sentence capitalization b. Book title capitalization c. Either book title capitalization or sentence...
A form contains six check boxes. Three of the check boxes are located in a group box. How many of the check boxes on the form can be selected at the same time? a. One b. Two c. Three d. Six
Which of the following If clauses will evaluate to True when the Bonus check box is selected? a. If chkBonus.Check = True Then b. If chkBonus.Checked Then c. If chkBonus.Checked = True Then d. Both b...
What will the code in Figure 4-55 assign to the strStatus variable when the intLevel variable contains the number 4? a. Bronze b. Gold c. Platinum d. Silver Select Case intLevel Case 1, 2 = "Bronze"...
What will the code in Figure 4-55 assign to the strStatus variable when the intLevel variable contains the number 7? a. Bronze b. Gold c. Platinum d. Silver Select Case intLevel Case 1, 2 strStatus =...
When entered in the appropriate event procedure, which of the following statements cancels the key pressed by the user? a. e.Handled = True b. e.Handled = False c. e.KeyCancel = True d. e.KeyCancel =...
Which of the following If clauses determines whether the user pressed the Backspace key? a. If e.KeyChar = ControlChars.Back Then b. If e.KeyChar = Backspace Then c. If e.KeyChar =...
Which of the following If clauses determines whether the user pressed the % key? a. If ControlChars.PercentSign = True Then b. If e.KeyChar = "%" Then c. If e.KeyChar = Chars.PercentSign Then d. If...
The computer will stop processing the loop in Review Question 6 when the intCount variable contains the number _____________________. a. 11 b. 12 c. 13 d. 14
In this exercise, you modify the Grade application from Exercise 13 in Chapter 3. Use Windows to copy the Grade Solution folder from the VB2017\Chap03 folder to the VB2017\Chap04 folder. Open the...
In this exercise, you modify the Sales application from Exercise 14 in Chapter 3. Use Windows to copy the Sales Solution folder from the VB2017\Chap03 folder to the VB2017\Chap04 folder. Open the...
The loop controlled by the correct For clause from Review Question 13 will end when the intX variable contains the number _____________________. a. 100 b. 111 c. 101 d. 110
To make the btnCalc control the default button, you need to set the _____________________ property. a. btnCalcs AcceptButton b. btnCalcs DefaultButton c. forms AcceptButton d. forms DefaultButton
Minimize the following expression using a K-map: F = AB + A B CD + CD + A B C D and then draw schematics using: (a) NAND gates. (b) NOR gates.
Draw a logic diagram for a two-input (A,B) Exclusive-OR operation using only four two-input (A,B) NAND gates. Assume that complemented inputs A and B are not available.
Express the following functionsF 1 and F 2 in terms of the inputs A, B, and C. What is the relationship between F 1 and F 2 ? A - F, D- Do F2
Design a combinational circuit that accepts a three-bit unsigned number and generates an output binary number equal to the input number plus 1. Draw a schematic using logic gates. Show all steps...
Name the five phases of the traditional systems development life cycle (SDLC), and explain the purpose and deliverables of each phase.
Explain the distinction between entity type and entity instance.
Design a combinational circuit that converts a 4-bit BCD input to its nines complement output. Draw a schematic using logic gates. Show all steps clearly.
Implement each of the following using an 8-to-1 multiplexer: (a) F(A, B, C, D)=ABC +ABD +ABC +ACD (b) F(W, X, Y, Z) = m(2, 3, 6, 7, 8, 9, 12, 13, 15)
A combinational circuit is specified by the following equations: F 0 (A, B, C) = A B C + ABC = ABC F 1 (A, B, C) = ABC + ABC F 2 (A, B, C) = ABC + ABC F 3 (A, B, C) = ABC + ABC + ABC Draw a logic...
Write a Verilog description for a four-bit unsigned comparator using dataflow modeling using the logical equality, less than, and greater than operators.
Assume that initially x = 1, A = 0, and B = 1 in Figure P5.5. Determine the values of A and B after the positive edge of Clk. A B D D Clk Clk Clk
Given Figure P5.8, draw the timing diagram for Q and Q assuming a negative edge triggered JK flip-flop. Assume Q is preset to 1 initially. CIk K
Given the timing diagram for a negative-edge triggered T flip-flop in Figure P5.10, draw the timing diagram for Q. Assume Q is preset to 1 initially. CIk T FIGURE P5.10.
Analyze the clocked synchronous circuit shown in Figure P5.15. Express the next state in terms of the present state and inputs, derive the state table, and draw the state diagram. X A PITII D FIGURE...
Design the following nonbinary sequence counters using the type of flipflop specified. Assume the unused states as dont cares. Is the counter self-correcting? Justify your answer. (a) Counting...
Design an ALU to perform the following operations: Assume that x and y are 4-bit numbers, and B = y 3 y 2 y 1 y 0 . Draw a logic diagram. S, S, F x plus y 1 X 1 B 1
Consider the following normalized relations from a database in a large retail chain: STORE (StoreID, Region, ManagerID, SquareFeet) EMPLOYEE (EmployeeID, WhereWork, EmployeeName, EmployeeAddress)...
Which employees were hired during 1999?
List all raw materials that are made of cherry and that have dimensions (thickness and width) of 12 by 12.
Display the product line ID and the average standard price for all products in each product line.
Display the product ID and the number of orders placed for each product. Show the results in decreasing order by the number of times the product has been ordered and label this result column...
For each customer who had more than two orders, list the CustomerID and the total number of orders placed.
Write the SQL command to add MATH SCORE to the STUDENT table. TUTOR (TutorlD, CertDate, Status) MATCH HISTORY (MatchID, TutorlD, StudentID, StartDate, EndDate) TutorlD CertDate Status 1/05/2008...
For each of the following relations, indicate the normal form for that relation. If the relation is not in third normal form, decompose it into 3NF relations. Functional dependencies (other than...