Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 12.3, Problem 23STQ
Explanation of Solution
Reasons for not taking accessor and mutator methods for class definition of “ListNode”:
The given methods are not needed for the class definition “ListNode” of Listing 12.7 because the methods in the linked list class can directly access the instance variables “data” and “link” of the nodes.
- Consider the method “showList” of “StringLinkedListSelfContained...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Java Graphics
(Bonus
In this lab, we'll be practicing what we learned about GUIs, and Mouse events. You will need to
implement the following:
A GUI with a drawing panel. We can click in this panel, and you will capture those clicks as a
Point (see java.awt.Point) in a PointCollection class (you need to build this).
The points need to be represented by circles.
Below the drawing panel, you will need 5 buttons:
O
о
о
○
An input button to register your mouse to the drawing panel.
A show button to paint the points in your collection on the drawing panel.
A button to shift all the points to the left by 50 pixels.
The x position of the points is not allowed to go below zero.
Another button to shift all the points to the right 50 pixels.
"
The x position of the points cannot go further than the
You can implement this GUI in any way you choose. I suggest using the BorderLayout for a panel
containing the buttons, and a GridLayout to hold the drawing panel and button panels.
Regardless of how…
also provide the number of moves(actions) made at state A and moves(actions) made state B. INCLUDE Java program required(this question is not graded)
You are given a class that processes purchases for an online store. The class receives calls to:
•
Retrieve the prices for items from a database
• Record the sold items
•
Update the database
•
Refresh the webpage
a. What architectural pattern is suitable for this scenario? Illustrate your answer by drawing a
model for the solution, showing the method calls/events.
b. Comment on how applying this pattern will impact the modifiability of the system.
c. Draw a sequence diagram for the update operation.
Chapter 12 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 12.1 - Suppose aList is an object of the class...Ch. 12.1 - Prob. 2STQCh. 12.1 - Prob. 3STQCh. 12.1 - Prob. 4STQCh. 12.1 - Can you use the method add to insert an element at...Ch. 12.1 - Prob. 6STQCh. 12.1 - Prob. 7STQCh. 12.1 - If you create a list using the statement...Ch. 12.1 - Prob. 9STQCh. 12.1 - Prob. 11STQ
Ch. 12.1 - Prob. 12STQCh. 12.2 - Prob. 13STQCh. 12.2 - Prob. 14STQCh. 12.2 - Prob. 15STQCh. 12.2 - Prob. 16STQCh. 12.3 - Prob. 17STQCh. 12.3 - Prob. 18STQCh. 12.3 - Prob. 19STQCh. 12.3 - Write a definition of a method isEmpty for the...Ch. 12.3 - Prob. 21STQCh. 12.3 - Prob. 22STQCh. 12.3 - Prob. 23STQCh. 12.3 - Prob. 24STQCh. 12.3 - Redefine the method getDataAtCurrent in...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.4 - Revise the definition of the class ListNode in...Ch. 12.4 - Prob. 30STQCh. 12.5 - What is the purpose of the FXML file?Ch. 12.5 - Prob. 32STQCh. 12 - Repeat Exercise 2 in Chapter 7, but use an...Ch. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Repeat Exercises 6 and 7 in Chapter 7, but use an...Ch. 12 - Write a static method removeDuplicates...Ch. 12 - Write a static method...Ch. 12 - Write a program that will read sentences from a...Ch. 12 - Repeat Exercise 12 in Chapter 7, but use an...Ch. 12 - Write a program that will read a text file that...Ch. 12 - Revise the class StringLinkedList in Listing 12.5...Ch. 12 - Prob. 12ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 14ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 17ECh. 12 - Revise the method selectionSort within the class...Ch. 12 - Repeat the previous practice program, but instead...Ch. 12 - Repeat Practice Program 1, but instead write a...Ch. 12 - Write a program that allows the user to enter an...Ch. 12 - Write a program that uses a HashMap to compute a...Ch. 12 - Write a program that creates Pet objects from data...Ch. 12 - Repeat the previous programming project, but sort...Ch. 12 - Repeat the previous programming project, but read...Ch. 12 - Prob. 9PPCh. 12 - Prob. 10PPCh. 12 - Prob. 11PPCh. 12 - Prob. 12PPCh. 12 - Prob. 13PPCh. 12 - Prob. 14PPCh. 12 - Prob. 15PP
Knowledge Booster
Similar questions
- 2. The memory management has contiguous memory allocation, dynamic partitions, and paging. Compare the internal fragmentation and external fragmentation for these three approaches. [2 marks] 3. Suppose we have Logical address space = 24 = 16 (m = 4), Page size=2² =4 (n = 2), Physical address space = 26 = 64 (r = 6). Answer the following questions: [4 marks] 1) Total # of pages ? 2) Total # of frames ? 3) Number of bits to represent logical address? 4) Number of bits to represent offset ? 5) Number of bits to represent physical address? 6) Number of bits to represent a page number? 7) Number of bits to represent a frame number / 4. What is translation look-aside buffers (TLBS)? Why we need them to implement the page table? [2 marks] 5. Why we need shared pages for multiple processes? Give one example to show the benefits. [2 marks] 6. How to implement the virtual memory by using page out and page in? Explain with an example. [2 marks] 7. We have a reference string of referenced page…arrow_forwardGood morning, please solve this trying to follow this criteria. (use Keil) Abstract describing the requirements and goals of the assignment. List file with no errors or warnings. Brief description of your implementation design and code. Debugging screen shots for different scenarios with your reference and comments. Conclusion (and please give me the code without errors, make sure it is working)arrow_forwardGood mrng, please solve this trying to follow this criteria. (use Keil) Abstract describing the requirements and goals of the assignment. List file with no errors or warnings. Brief description of your implementation design and code. Debugging screen shots for different scenarios with your reference and comments. Conclusion (and please give me the code without errors, make sure it is working)arrow_forward
- #include <stdio.h> #include <stdlib.h> #include <unistd.h> int global_var = 42; // int* function(int *a) { int local_var = 10; // *a = *a + local_var; int *local_pointer = (int *)malloc (size of (int) * 64); // Allocated array with 64 integers return local_pinter; } int main() { int local_main[1024*1024*1024*1024*1024] = {0}; // initialize an array and set all items as 0 int *heap_var = (int *)malloc(size of(int) * 16); // Allocated array with 16 integers *heap_var = 100; function(heap_var); printf(“the value is %d\n”, *heap_var); free(heap_var); // release the memory return 0; } 1) draw the memory layout of the created process, which should include text, data, heap and stack [2 marks]. 2) Indicate which section the variables are allocated [2 marks]: global_var local_var, local_pointer local_main heap_var, *heap_var (the data that it points to) 3) Does this code have memory leaking (heap memory is not released)? [2 marks] 4) The…arrow_forward8. List three HDD scheduling algorithms. [2 marks] 9. True or False? The NVM has the same scheduling algorithms with HDD. Explain why? [2 marks] 10. Why the modern mouses use polling to detect movements instead of interrupts? [2 marks] 11. What is thrashing? How does it happen? [2 marks] 12. Given a reference string of page numbers 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1 and 4 frames show how the page replacement algorithms work, and how many page faults? [6 marks], 1) FIFO algorithm? [2 marks] 2) Optimal algorithm? [2 marks] 3) LRU algorithm? [2 marks] 13. List at least three file systems that you know. [2 marks] 14. In C programming, how the seek to a specific position in the file by offset? [2 marks]arrow_forwardA Personal Address Book application program allows the user to add, delete, search, save, and load contact information. The program separates the user interface (command-line) and the internal processing subsystem. The internal processing system consists of the following classes: • • Contact Manager (responsible for add and delete operations) Contact Finder (responsible for the search operation) pataManager (responsible for save and load operations) a. What design pattern can be used to implement the user interface? Explain your answer using a class diagram for the entire system. b. Draw a UML sequence diagram to show the behavioral view of the Personal Address Book program, demonstrating what happens when a user enters new contact information.arrow_forward
- A system comprises three components: A, B, and C. Calling A requires calling B, and calling B requires calling A. Component C is responsible for dissimilar tasks T#1, #2, and T#3. a. Comment on the modifiability of this system. What problems do you see in this system, and how would you solve them? b. Suppose that T#1 is performed by both component A and C. What does this indicate about A and C? How would you solve this problem?arrow_forwardPlease answer questions from number 1 to 3 if these questions in the image provided below(NOTE: THESE QUESTIONS ARE NOT GRADED!)arrow_forwardIn a client-server system for a hypothetical banking application, the clients are ATM machines, and the server is the bank server. Suppose the client has two operations: withdraw and deposit. Use the broker architectural pattern to document an initial architecture design for this system: a. Draw a class diagram for this system. Use a client-side proxy to encrypt the data using an encrypt operation and a server-side proxy to decrypt the data. b. Discuss how you plan to apply redundancy tactics on the server. Additionally, identify the quality attribute that this tactic will achieve and discuss any potential side effects of applying it.arrow_forward
- a. Comment on how you would achieve higher performance for a hypothetical Trent Course Registration System, assuming it utilizes a client-server architecture. b. Suppose we want greater availability of the server. Discuss what kind of tactics should be used to achieve that.arrow_forwardImplement a C program to find the largest element in a given array. You must have a main function and a max function. The function int main() will declare an array with the values {12, 100, 10, 1000, 20, 5}. This array will be passed to the max function. The function int max() will perform the necessary operations to find the largest element of the array. After max () is finished, have main () print the largest value and its index in the array. Do not hard code your solution! If we test your code with different array values, we should still get the correct output. The following link may help you get started: https://www.tutorialspoint.com/cprogramming/c_function_call_by_reference.htmarrow_forwardPlease run the following program and answer the questions. #include int main(void) { int arr[6] = int *pointer pointer *pointer = {10, 20, 30, 40, 50, 60}; = &arr[0]; pointer + 2; = 5 ; pointer++; *pointer - (*pointer) 5 ; pointer++; *pointer * (pointer+1) - 5%; return 0; 1. [10 pts] Please list the values of elements in array arr after line 8 (*pointer why. = 5; ) and explainarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr