
Concept explainers
Explanation of Solution
Program purpose:
The given program is used to implement queue using linked list.
Syntax error:
An error that occurs on the source code of a program is referred as a “syntax error”, because the computer programs strictly follow the syntax rules. If the code fails to prove its language syntax format, then the compiler will throw an error.
Error in the code:
The operator “++” cannot be applied to a reference. Use front = front.next;
Correct statement:
/*removing the element from front by moving front to the next node.*/
front= front.next;
Corrected code:
//A linked implementation of a queue
int dequeue()
{
//checks whether the queue is empty
if(empty())
/*throws exception EmptyQueueException indicating the queue is empty*/
throw new EmptyQueueException();
/*if the queue is not empty then,
front element is reserved to a variable*/
int value= front...
Want to see the full answer?
Check out a sample textbook solution
Chapter 20 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
- Don't use chatgpt or any other AIarrow_forwardGiven a relation schema R = (A, B, C, D, E,G) with a set of functional dependencies F {ABCD BC → DE B→ D D→ A}. (a) Show that R is not in BCNF using the functional dependency A → BCD. (b) Show that AG is a superkey for R (c) Compute a canonical cover Fc for the set of functional dependencies F. Show your work. (d) Give a 3NF decomposition of R based on the canonical cover found in (c). Show your work. (e) Give a BCNF decomposition of R using F. Show your work.arrow_forwardThe following entity-relationship (ER) diagram models a database that helps car deal- ers maintain records of customers and cars in their inventory. Construct a relational database schema from the ER diagram. Your set of schemas should include primary-key and foreign-key constraints and you should ensure there are no redundant schemas. has_model model modelID name vehicle has_vehicle VIN dealer_ID brand name has_available_option has_option has_dealer options options_ID specification dealer dealer ID name customer_ID owned_by customer customer ID namearrow_forward
- A relation schema R = (A, B, C, D, E) with a set of functional dependencies F= {D A CAB} is decomposed into R₁ = (A, B, C) and R2 = (C, D, E). (a) Is this a lossless-join decomposition? Why or why not? (b) Is the decomposition dependency preserving? Why or why not?arrow_forwardNo chatgpt pleasearrow_forwardPlease help draw alu diagraarrow_forward
- 1. Level the resources (R) for the following network. Show exactly which activity is being moved at each cycle and how many days it is being moved. Show all cycles required to utilize the free float and the back float. B H 3 3 L 2 0-0-0 A C F G K N P Q T 0 3 2 2 1 2-2-2 7R 8R 4R 6R 4R 2R 5R 4R D 1 2R 2 M 000 4R 2 4R 1 2 3 4 B5 B BE B 5 5 7 D 2003 C NO C MBSCM В H 5 2 F 7 7 8 SH2F80 5 Н Н 6 7 7L3G4+ 6H2G4 J 4 4 14 8 L K 00 36 9 10 11 12 13 14 15 P 2 Z+ N N 4 4 Z t 2334 4 Σ + M M 4 +arrow_forward2. Perform resource allocation for the following project. Resource limits are 6 labors and 2 helpers. Legend: Activity Dur Resources G H 2 3 2L 1H 2L OH A 1 3L 1H + B D F J K 3 4 6 2 4 4L 2H 3L OH 4L 1H 2L 2H 4L 2H C E 2 2 I 1 2L 1H 3L 1H 5L 1Harrow_forwardNeed Java method please. Thank you.arrow_forward
- Need Java method please. Thank you.arrow_forward3. Write two nested loops to generate the following output. (Note: There is one space between each number, and any extra line shown is intentional.) 12 10 8 6 18 15 12 24 20 30 2 3 3 6 48 12 5 10 15 20 6 12 18 24 30arrow_forwardWrite in verilog coding languagearrow_forward
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
New Perspectives on HTML5, CSS3, and JavaScriptComputer ScienceISBN:9781305503922Author:Patrick M. CareyPublisher:Cengage Learning
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage




