Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
6th Edition
ISBN: 9780134477367
Author: David J. Barnes, Michael Kolling
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 3, Problem 39E
Program Plan Intro
To convert the clock format to a 12-hour format from 24-hour format
Program Plan:
 Modify a program in BlueJ using Java and achieve the 12-hour clock by modifying the display string of the clock display 4:23 or 4:23pm when the clock time reaches to 16:23.
Program Plan Intro
To convert the clock format to a 12-hour format from 24-hour format
Program Plan:
 Modify a program in BlueJ using Java and achieve the 12-hour clock by storing hour values from 1 to 12.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Open the clock-display project and create a ClockDisplay object by selecting the following constructor: new ClockDisplay() Call its getTime method to find out the initial time the clock has been set to. Can you work out why it starts at that particular time?
Help with JavaFX barchart:
I have a program that allows a user to deposit and withdraw money while updating their balance based on the month the transaction occured, but I am having trouble with the programs class and am trying to make a bar chart that will have the total balance of that month, so as an example in May the bar would show $70, while the bar for June would show $100, even if the deposits were $20 and $50, then $30, $40 and $30.
Implement the "Replace player" menu option. Prompt the user for the jersey number of the player to replace. If the player is in the roster, then prompt again for a new jersey number and rating. Update the replaced player's jersey number and rating.Ex:
Enter a jersey number: 4 Enter a new jersey number: 12 Enter a rating for the new player: 8
Chapter 3 Solutions
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
Ch. 3 - Prob. 1ECh. 3 - At what time (s) can a class diagram change? How...Ch. 3 - At what time(s) can an object diagram change? How...Ch. 3 - Write a definition of a field named tutor that can...Ch. 3 - Prob. 5ECh. 3 - Create a second NumberDisplay object with a limit...Ch. 3 - Select Show Code Pad from the View menu. Create a...Ch. 3 - What error message do you see in the Code Pad if...Ch. 3 - What error message do you see in the Code Pad if...Ch. 3 - What happens when the setValue method is called...
Ch. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Which of the following expressions return...Ch. 3 - Write an expression using boolean variables a and...Ch. 3 - Write an expression using boolean variables a and...Ch. 3 - Consider the expression (a && b). Write an...Ch. 3 - Does the getDisplayValue method work correctly in...Ch. 3 - Prob. 18ECh. 3 - In Exercise 2.79 you were asked to investigate...Ch. 3 - Explain the modulo operator. You may need to...Ch. 3 - What is the result of the expression 83?Ch. 3 - Try out the expression in the Code Pad. Try other...Ch. 3 - Prob. 23ECh. 3 - Prob. 24ECh. 3 - Explain in detail how the increment method works.
Ch. 3 - Rewrite the increment method without the modulo...Ch. 3 - Open the clock-display project and create a...Ch. 3 - Prob. 28ECh. 3 - Prob. 29ECh. 3 - Prob. 30ECh. 3 - Look at the second constructor in C1ockDisplay's...Ch. 3 - Prob. 32ECh. 3 - Given a variable Printer p1; which currently holds...Ch. 3 - Open the house project from Chapter 1 and review...Ch. 3 - Prob. 35ECh. 3 - Does the Picture class contain any internal method...Ch. 3 - Remove the following two statements from the draw...Ch. 3 - Prob. 38ECh. 3 - Prob. 39ECh. 3 - Assume a class Tree has a field of type Triangle...Ch. 3 - Prob. 41ECh. 3 - Open the mail-system project, which you can find...Ch. 3 - Prob. 43ECh. 3 - Prob. 44ECh. 3 - Open the editor for the MailClient class and set a...Ch. 3 - Step one line forward in the execution of the...Ch. 3 - Prob. 47ECh. 3 - Prob. 48ECh. 3 - Prob. 49ECh. 3 - Set a breakpoint in the first line of the sendMai1...Ch. 3 - Use a combination of code reading, execution of...Ch. 3 - Use the debugger to investigate the clock-display...Ch. 3 - Prob. 53ECh. 3 - Prob. 54ECh. 3 - Prob. 55ECh. 3 - Describe the changes that would be required to the...Ch. 3 - Write the code for the timeTick method in...Ch. 3 - Discuss whether the current design of the...Ch. 3 - Challenge exercise In the current design of...
Knowledge Booster
Similar questions
- Experiment with inserting different amounts of money before printing tickets. Do you notice anything strange about the machine’s behavior? What happens if you insert too much money into the machine—do you receive any refund? What happens if you do not insert enough and then try to print a ticket?arrow_forwardIn this task by using java language you should create the moving box example belwo, then you should extend the box class and create a new one called ColoredBox, in this class you should override the drawing method, the first thing you should do is recalling the original draw method (as we don't want to change any of the previous behaviours), then you should check if the box collided on the X or Y axis, if so change the colour of the box randomly colour. Important Note : the move of the box should be randomly o 3:53 Now we have a fully functional animated box :D N Soeen Figure 2: TV Screen App.arrow_forwardplease make it simple with commentsarrow_forward
- Write a simple program that makes the user try to guess a secret number repeatedlyuntil they get it right.First, your program should select a random number between 1 and 10 (inclusive). You can use the randint()method from the random module to do this. This is the secret number that the user is trying to guess.Then, your program should allow the user to input numbers as many times as needed in order to guess thesecret number. If the user gets it wrong, the program should give a hint by telling the user whether theirguess was too high or too low. If the user gets it right, the program should tell them so and then terminate.arrow_forwardThe first version of Abby’s Eggs worked but was a bit cumbersome. I.e. you couldn’t edit a single parameter, you had to always re-enter all of them. Store the parameters (number of chickens, eggs laid per day, etc.,) in static fields of the class. Have separate methods for updating the parameters. Use a switch statement to take menu selections for updating parameters or outputting results. If the menu choice is 0, the program should terminate, invalid inputs should be ignored and any prompt repeated. Before displaying updated menu, “clear the screen” I got most of the code working, but I can't find a way to clear the sceen before displaying the updated menu. I tried using "System.out.print("\033[H\033[2J"); System.out.flush();", but it is not working. I am using the Apache NetBeans IDE.arrow_forwardIn JavaFX I need to create a standard calculator with two input fields and one output field that can only add, subtract, multiply, and divide using buttons. This needs to be completed in the simplist way. No overcomplication or unnecessary additions.arrow_forward
- python Follow these steps to create your Warhol Grid: Find or create an image (for this activity, a smaller starting image will produce higher quality results in a shorter amount of time). Using the Python documentation as a guide, create a program that loads the image, filters three copies of it, and saves the result. Note: You will need to create the three filters using the filter() method. Include multiple filters on at least two of your variants. One of your variants must apply a single filter multiple times with the use of a loop. For example, the top right image above uses a loop to blur the image 2 times (what if we did it 100 times?). One of your images must apply at least two different filters to the same image. In the example image, the bottom right image includes a a filter to smooth the image and then edge enhance them.arrow_forwardHow many times would you need to call the timeTick method on a newly created ClockDisplay object to make its time reach 01:00? How else could you make it display that time?arrow_forwardImplement a python version of the game Hangman in which a player attempts to guess a secret word one letter at a time. Normally Hangman is a two-player game but in your version the user will play three rounds against the computer. Use the following as the secret word in each round: 1. “APPLE”2. “OBVIOUS”3. “XYLOPHONE” Here are the steps to follow in each round: Print the secret word with each letter replaced with the underscore character, “_” Prompt the user to enter a letter or word using the following message, “Enter a letter or word: ”. If the user enters a single letter, check if that letter is in the secret word (case-insensitive). The user can make up to 6 letter guesses in a round. If the user guesses a letter they have already guessed, print the message “You've already guessed that letter!” and don’t count it as one of their 6 guesses. Go straight to step 6. If the user enters a word, check if the word matches the secret word (case-insensitive). Word guesses should not…arrow_forward
- similar to those we've done in class. Let's write another IPO program use the starter program, CircleStats.java, which you'll find in the CodeCheck link below. You can complete this with BlueJ (or the sandbox or Eclipse if you like). The program reads a radius value for a circle and computes and prints the area and the circumference. Here's what a sample interaction should look like along with the formulas you'll need: Interactions Console Compiler Output Enter the radius of a circle: 10.5 Area = Tr? c = 2r Area: 346.3605900582747 Circumference: 65.97344572538566 Remember to use Math.PI for the value of pi. You can square the radius using multiplication or the Math.pow() function. Follow the same steps as the example IPO problems from lecture. Once you have created the program, compile it and then run itarrow_forwardImplement the "Output players above a rating" menu option. Prompt the user for a rating. Print the jersey number and rating for all players with ratings above the entered value. Ex: Enter a rating: 5 ABOVE 5 Player 1 -- Jersey number: 84, Rating: 7 ...arrow_forwardWrite an Java application that determines whether a phrase entered by the user is a palindrome. A palindrome is a phrase that reads the same backward and forward without regarding capitalization or punctuation. For example, “Dot saw I was Tod”, “Was it a car or a cat I saw?”, and “Madam, I’m Adam” are palindromes. Display the appropriate feedback: You entered a palindrome or You did not enter a palindrome. import java.util.*; public class Palindrome { public static void main(String[] args) { // Write your code here } }arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education