Given a partial main.py and PlaneQueue class in PlaneQueue.py, write the push() and pop() instance methods for PlaneQueue. Then complete main.py to read in whether flights are arriving or have landed at an airport.
An "arriving" flight is pushed onto the queue.
A "landed" flight is popped from the front of the queue.
Output the queue after each plane is pushed or popped. Entering -1 exits the program.
Click the orange triangle next to "Current file:" at the top of the editing window to view or edit the other files.
Note: Do not edit any existing code in the files. Type your code in the TODO sections of the files only. Modifying any existing code may result in failing the auto-graded tests.
Important Coding Guidelines:
Use comments, and whitespaces around operators and assignments.
Use line breaks and indent your code.
Use naming conventions for variables, functions, methods, and more. This makes it easier to understand the code.
Write simple code and do not over complicate the logic. Code exhibits simplicity when it’s well organized, logically minimal, and easily readable.
Ex: If the input is:
arriving AA213
arriving DAL23
arriving UA628
landed
-1
the output is:
Air-traffic control queue
Next to land: AA213
Air-traffic control queue
Next to land: AA213
Arriving flights:
DAL23
Air-traffic control queue
Next to land: AA213
Arriving flights:
DAL23
UA628
AA213 has landed.
Air-traffic control queue
Next to land: DAL23
Arriving flights:
UA628
CODE:
from PlaneQueue import PlaneQueue
from PlaneNode import PlaneNode
if __name__ == "__main__":
plane_queue = PlaneQueue()
Answers
class PlaneQueue:
def __init__(self):
self.head = None
self.tail = None
def push(self, plane_node):
"""Pushes a plane node onto the queue.
Args:
plane_node: The plane node to push.
Returns:
None.
"""
# If the queue is empty, set the new node as the head and tail.
if self.head is None:
self.head = plane_node
self.tail = plane_node
return
# Set the new node as the tail and the previous tail's next node.
self.tail.next = plane_node
self.tail = plane_node
def pop(self):
"""Pops a plane node from the front of the queue.
Returns:
The plane node that was popped.
"""
# If the queue is empty, return None.
if self.head is None:
return None
# Get the plane node at the front of the queue.
plane_node = self.head
# Set the head to the next node.
self.head = self.head.next
# If the head is now None, set the tail to None as well.
if self.head is None:
self.tail = None
return plane_node
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Answer:
Because you can associate with other
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Explanation:
To avoid cyberbully
Which file must be download it regularly in order for antivirus software to remain effective
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Answer:
AV Definition Files.
Explanation:
Antivirus software downloaded Antivirus Definition Files to keep their database up to date in order to effectively catch and stop viruses.
In order to make sure that antivirus software remains effective, you need to download its Definition files.
What are Antivirus definition files?These are files that an antivirus uses to identify threats such as viruses and malware.
These files need to be downloaded and updated regularly to ensure that the antivirus can identify the latest threats and act aganst them.
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WILL GIVE BRAINLIEST, What is a Venn diagram used for?
To display relationships between different types of data in categories
To show only the differences between two or more different things
To show the differences and similarities between two or more different things
To visually display data and compare it to different graphs
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Answer:
To show the differences and similarities between two or more different things
Explanation:
Answer:
hi
Explanation:
true or false. Two of the main differences between storage and memory is that storage is usually very expensive, but very fast to access.
Answers
Answer:
False. in fact, the two main differences would have to be that memory is violate, meaning that data is lost when the power is turned off and also memory is faster to access than storage.
why is it important to prepare the farm resources before you start working? explain
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when I turn on my pc using a graphics card, it does give video, and everything is normal, but when I try to turn on my pc with the integrated graphics of the cpu, nothing appears on the screen, could you help me to be able to use the integrated graphics?
Answers
Answer:
Check BIOS
Explanation:
There are many reasons this could occur I highly would recommend checking BIOS to see if anything seems off their under the Graphics and CPU tab, because a common thing amoung lots of people are that their intergrated graphic setting is turned off in BIOS. If this doesnt work try updating BIOS/motherboard to see if there a change.
in a group ofpeople,20 like milk,30 like tea,22 like coffee,12 Like coffee only,2 like tea and coffee only and 8 lije milk and tea only
how many like at least one drink?
Answers
In the given group of people, a total of 58 individuals like at least one drink.
To determine the number of people who like at least one drink, we need to consider the different combinations mentioned in the given information.
First, we add the number of people who like each drink separately: 20 people like milk, 30 people like tea, and 22 people like coffee. Adding these values together, we get 20 + 30 + 22 = 72.
Next, we need to subtract the overlapping groups. It is mentioned that 12 people like coffee only, 2 people like tea and coffee only, and 8 people like milk and tea only. To find the overlap, we add these three values: 12 + 2 + 8 = 22.
To calculate the number of people who like at least one drink, we subtract the overlap from the total: 72 - 22 = 50.
Therefore, in the given group, 58 individuals like at least one drink. These individuals may like milk, tea, coffee, or any combination of these drinks.
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assume you write a program that uses the random class but you fail to include an import statement for java.util.random or java.util\.\*. what will happen when you attempt to compile and run your program? group of answer choices the program won't run but it will compile with a warning about missing the class. the program will encounter a run-time error when it attempts to access any member of the random class. the program will compile but you'll receive a warning about the missing class. the program won't compile and you'll receive a syntax error about the missing class. none of these
Answers
The program won't compile and you'll receive a syntax error about the missing class.
It checks while compiling the program for that method and when it is not found, it throws a syntax error.
What is syntax error?An error in the syntax of a string of characters or tokens intended to be written in a specific programming language is known as a syntax error in computer science.
Syntax errors in compiled languages are found during compilation. The syntax errors in a programme must all be fixed before it can be built. However, for interpreted languages, a syntax error might be found while a programme is being executed, and an interpreter's error messages might not be able to tell syntax errors apart from other errors.
The exact definition of "syntax errors" is up for debate. For instance, while some would argue that using the value of an uninitialized variable in Java code constitutes a syntax error[1][2], many others would categorise this as a (static) semantic error.
As the response to any command or user input the interpreter could not parse, the SYNTAX ERROR error message became somewhat well-known in 8-bit home computers that used BASIC interpreter as their primary user interface. When an invalid equation is entered on a calculator, a syntax error may happen. For example, opening brackets without closing them or, less frequently, entering multiple decimal points in a single number, can lead to this.
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Fill in the blank with the correct response.
The FTP client component of a full-featured HTML editor allows you to synchronize the entire
Answers
Answer:
File structure.
Explanation:
HTML is an acronym for hypertext markup language and it is a standard programming language which is used for designing, developing and creating web pages.
Generally, all HTML documents are divided into two (2) main parts; body and head. The head contains information such as version of HTML, title of a page, metadata, link to custom favicons and CSS etc. The body of the HTML document contains the contents or informations of a web page to be displayed.
The file transfer protocol (FTP) client component of a full-featured HTML editor allows you to synchronize the entire file structure. Therefore, when you wish to share your entire html document over a network server such as a FTP client, you should use a full-featured HTML editor.
Given the string “supercalifragilisticexpialidocious”.
1. What is the length of the string i.e. write the script to find the length? (2 points)
2. Find the sub-string of first 5 positions and the other sub-string with last 5 positions. (4 points)
3. Find how many times “i” occurs in this word in python
Answers
The string and the three instructions is an illustration of the python strings
The length of the stringThe following instruction calculates the length of the string using the Python script:
len("supercalifragilisticexpialidocious")
The returned value of the above instruction is: 34
The substringsThe following instruction calculates the sub-string of first 5 positions and the other sub-string with last 5 positions
myStr[:5]+myStr[-5:]
The returned string of the above instruction is: "supercious"
The number of occurrence of iThe following instruction calculates the occurrences of i in the string
"supercalifragilisticexpialidocious".count("i")
The returned value of the above instruction is: 7
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Kaiden would like to find the list of physical disk drives that are connected to a Linux system. Which directory contains a subdirectory for each drive
Answers
Answer:
The answer is "\root"
Explanation:
The root directory is the part of the Linux OS directory, which includes most other system files and folders but is specified by a forward slash (/). These directories are the hierarchy, which is used to organize files and folders on a device in a standardized protocol framework. This root is also known as the top directory because it .supplied by the os and also is designated especially, that's why it is simply called root.Which element of a digital camera captures an image
Answers
Answer:
The lens
Explanation:
Answer:
Pixel
Explanation:
The pixel of a digital camera captures an image
All digital images are made up of pixels – cameras capture images on their sensors in pixels
Write a procedure called Str_nextWord that scans a string for the first occurrence of a certain delimiter character and replaces the delimiter with a null byte. There are two input parameters: a pointer to the string and the delimiter character. After the call, if the delimiter was found, the Zero flag is set and EAX contains the offset of the next character beyond the delimiter. Otherwise, the Zero flag is clear and EAX is undefined. The following example code passes the address of target and a comma as the delimiter:
Answers
Answer:
Str_nextword PROC, pString:PTR BYTE, ; pointer to string delimiter:BYTE ; delimiter to find push esi mov al,delimiter mov esi,pString cld ; clear Direction flag (forward) L1: lodsb ; AL = [esi], inc(esi) cmp al,0 ; end of string? je L3 ; yes: exit with ZF = 0 cmp al,delimiter ; delimiter found? jne L1 ; no: repeat loop L2: mov BYTE PTR [esi-1],0 ; yes: insert null byte mov eax,esi ; point EAX to next character jmp Exit_proc ; exit with ZF = 1 L3: or al,1 ; clear Zero flag Exit_proc: pop esi ret Str_nextword ENDP
Explanation:
push esimov al,delimitermov esi,pStringcld ; clear Direction flag (forward)L1: lodsb ; AL = [esi], inc(esi)cmp al,0 ; end of string?je L3 ; yes: exit with ZF = 0cmp al,delimiter ; delimiter found?jne L1 ; no: repeat loopL2: mov BYTE PTR [esi-1],0 ; yes: insert null bytemov eax,esi ; point EAX to next characterjmp Exit_proc ; exit with ZF = 1L3: or al,1 ; clear Zero flagExit_proc:pop esiretStr_nextword ENDPStr_nextword ENDP
which of the following components forms the foundation of every computer-based information system and includes resources such as hardware, software, and data center facilities?
Answers
Every computer-based information system is built upon components of the technological infrastructure.
What exactly does "technology infrastructure" mean?To support the applications and information management needs of the business, the technological infrastructure consists of hardware and software components. Infrastructure for technology has these parts. devices for computers. computer programs. Networking and communication systems.
Why does technology matter going forward?It can provide a sense of belonging, access, knowledge, and empowerment. As we develop the technologies for the future, we might attempt to create a better world over time. This might mean many things because technology affects every part of our lives.
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The local library dealing with a major computer virus checked its computers and found several unauthorized programs, also known as ______.
A. Software
B. Hardware
C. Malware
D. Torrents
Answers
Answer:
malware
Explanation:
Answer: C. Malware
i just did it
b) Use method from the JOptionPane class to request values from the user to initialize the instance variables of Election objects and assign these objects to the array. The array must be filled.
Answers
The example of the Java code for the Election class based on the above UML diagram is given in the image attached.
What is the Java code about?Within the TestElection class, one can instantiate an array of Election objects. The size of the array is determined by the user via JOptionPane. showInputDialog()
Next, one need to or can utilize a loop to repeatedly obtain the candidate name and number of votes from the user using JOptionPane. showInputDialog() For each iteration, one generate a new Election instance and assign it to the array.
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See text below
Question 2
Below is a Unified Modelling Language (UML) diagram of an election class. Election
-candidate: String
-num Votes: int
<<constructor>> + Election ()
<<constructor>> + Election (nm: String, nVotes: int)
+setCandidate( nm : String)
+setNum Votes(): int
+toString(): String
Using your knowledge of classes, arrays, and array list, write the Java code for the UML above in NetBeans.
[7 marks]
Write the Java code for the main method in a class called TestElection to do the following:
a) Declare an array to store objects of the class defined by the UML above. Use a method from the JOptionPane class to request the length of the array from the user.
[3 marks] b) Use a method from the JOptionPane class to request values from the user to initialize the instance variables of Election objects and assign these objects to the array. The array must be filled.
Is there a parrapa level for stage 1 in umjammer lammy?
Answers
Answer:yes there WAS a parrapa level but it was scrapped from the game I think you can find it in beta versions of the game but
Giving reasons for your answer based on the type of system being developed, suggest the most appropriate generic software process model that might be used as a basis for managing the development of the following systems: • A system to control anti-lock braking in a car • A virtual reality system to support software maintenance • A university accounting system that replaces an existing system • An interactive travel planning system that helps users plan journeys with the lowest environmental impac
Answers
There are different kinds of systems. the answers to the questions is given below;
Anti-lock braking system: Is simply known as a safety-critical system that helps drivers to have a lot of stability and hinder the spinning of car out of control. This requires a lot of implementation. The rights generic software process model to use in the control of the anti-lock braking in a car is Waterfall model. Virtual reality system: This is regarded as the use of computer modeling and simulation that helps an individual to to be able to communicate with an artificial three-dimensional (3-D) visual etc. the most appropriate generic software process model to use is the use of Incremental development along with some UI prototyping. One can also use an agile process.University accounting system: This is a system is known to have different kinds of requirements as it differs. The right appropriate generic software process model too use is the reuse-based approach.
Interactive travel planning system: This is known to be a kind of System that has a lot of complex user interface. The most appropriate generic software process model is the use of an incremental development approach because with this, the system needs will be altered as real user experience gain more with the system.
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When creating and modifying templates, which keys are used to add placeholders?
Alt+F9
Shift+F8
Delete+F8
Ctrl+F9
Answers
Answer:
Ctrl + F9
Explanation:
D is the answer to you're question!
Answer:
d
Explanation:
right on edg <3
Write a program that controls employees data of a School:
The program should contains at least everyone in school first and last name, email and (pay for workers, fees for students). Assume that school has:
(4 people in team of management , 4 Clean workers , 10 students , 3 Teachers ).
Customize that data and prints out the data of each one in that school in a list form
Answers
Answer: 4376
Explanation: Because you dont need to EXPLAIN THIS IS THE ANSWER
Please help ASAP!
Which type of game is most likely to have multiple different outcomes?
A. shooter game
B. puzzle game
C. platform game
D. role-playing game
Answers
Write a program that will prompt the user for the number of dozens (12 cookies in a dozen) that they use.
Calculate and print the cost to buy from Otis Spunkmeyer, the cost to buy from Crazy About Cookies, and which option is the least expensive (conditional statement).
There are four formulas and each is worth
Use relational operators in your formulas for the calculations. 1
Use two conditional execution (if/else if)
One for Otis cost (if dozen is less than or equal to 250 for example)
One that compares which costs less
Appropriate execution and output: print a complete sentence with correct results (see sample output below)
As always, use proper naming of your variables and correct types. 1
Comments: your name, purpose of the program and major parts of the program.
Spelling and grammar
Your algorithm flowchart or pseudocode
Pricing for Otis Spunkmeyer
Number of Dozens Cost Per Dozen
First 100 $4.59
Next 150 $3.99
Each additional dozen over 250 $3.59
Pricing for Crazy About Cookies
Each dozen cost $4.09
Answers
Python that asks the user for the quantity of dozens and figures out the price for Crazy About Cookies and Otis Spunkmeyer.
How is Otis Spunkmeyer baked?Set oven to 325 degrees Fahrenheit. Take the pre-formed cookie dough by Otis Spunkmeyer out of the freezer. On a cookie sheet that has not been greased, space each cookie 1 1/2 inches apart. Bake for 18 to 20 minutes, or until the edges are golden (temperature and baking time may vary by oven).
Cookie Cost Calculator # Software # Author: [Your Name]
# Ask the user how many dozens there are.
"Enter the number of dozens you want to purchase:" num dozens = int
# If num dozens = 100, calculate the cost for Otis Spunkmeyer:
If num dozens is greater than 250, otis cost is equal to 100. otis cost = 100 if *4.59 + (num dozens - 100)*3.99 (num dozens - 250) * 4.59 * 150 * 3.99 * 3.59
# Determine the price for Crazy About Cookies
insane price equals num dozens * 4.09 # Choose the more affordable choice if otis cost > crazy cost:
(otis cost, num dozens) print("Buying from Otis Spunkmeyer is cheaper at $%.2f for%d dozens.")
If not, print ((crazy cost, num dozens)) "Buying from Crazy About Cookies is cheaper at $%.2f for%d dozens."
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what is an IP address
Answers
Which of the following data archival services is extremely inexpensive, but has a several hour data-retrieval window?
Answers
The data archival service that is extremely inexpensive but has a several hour data-retrieval window is Amazon Glacier.
Amazon Glacier is a low-cost data archiving service offered by Amazon Web Services (AWS) that allows users to store data for an extended period of time. It is one of the most affordable cloud data storage options, with prices starting at just $0.004 per gigabyte per month.
The data retrieval window for Amazon Glacier is several hours, which means that it may take up to several hours for your data to be available for retrieval. This is because Amazon Glacier is optimized for archival and backup use cases, rather than immediate access to data.
Amazon Glacier is suitable for businesses and organizations that need to store large amounts of data for extended periods of time, but don't need to access it frequently. It is ideal for long-term data backup, archiving, and disaster recovery purposes.
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The following question may be like this:
Which of the following data archival services is extremely inexpensive, but has a 3-5 hour data-retrieval window?
Glacier offers extremely inexpensive data archival, but requires a 3-5 hour data-retrieval window.Several hour data-retrieval window is Amazon Glacier.Discuss some of the trade-offs and the challenges of a move to an enterprise-level
analytics solution for companies and their end-users who might have grown
accustomed to working with their customised solutions for generating data.
Back your discussion with i) a critical review of relevant literature, ii) the case of Nationwide
Insurance (Support Case presented in the next section of this assessment brief).
(1,500 words),
Answers
An example of some of the trade-offs is opportunity cost and some challenges are:
Lack of acces to data. Poor quality of data, etc.What is trade-offs?A trade-off is known to be also as an "opportunity cost." Note that it is the price or amount of something that has been forgone.
Note that An opportunity cost serves as an example of trade-offs in terms of an individual's decision to be a full-time worker and take time off work and have their salary slashed so as to be able to attend medical school.
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true or false A query can have many Highly Meets results.
Answers
Answer:
FALSE!
Explanation:
In most contexts, a query cannot have multiple "Highly Meets" results. "Highly Meets" typically refers to a specific ranking or evaluation of search results based on relevance to a query. It suggests that a particular search result is highly relevant and closely matches the intent of the query.
Hope it helps!! :)
Answer:False. I hope this helps you
Explanation:
False. In the context of search, a query can have many highly relevant results, but not necessarily many “Highly Meets” results as this term is not commonly used in search or information retrieval.
What is the best way to deal with a spam
Answers
Simply ignoring and deleting spam is the best course of action. Avoid responding to or engaging with the spam communication because doing so can let the sender know that your contact information is still live and invite additional spam in the future. Additionally, it's critical to mark the email as spam using your email program or by reporting it to the relevant authorities. Make careful to report the spam to the proper authorities for investigation if it appears to be a phishing scheme or contains hazardous content.
e. Define the following terms: i. BIT ii. Nibble iii. Byte
Answers
ii. A nibble is a group of four bits or half a byte. It can represent 16 possible values, ranging from 0000 to 1111 in binary.
iii. A byte is a unit of digital information that consists of eight bits. It can represent 256 possible values, ranging from 00000000 to 11111111 in binary. Bytes are used to represent characters, numbers, and other types of data in computer systems.
In cell B13, create a formula without a function using absolute references that subtracts the values of cells B5 and
B7 from cell B6 and then multiples the result by cell B8. please help with excel!! I'm so lost
Answers
Answer:
The formula in Excel is:
=($B$6 - $B$5 - $B$7)* $B$8
Explanation:
Required
Use of absolute reference
To reference a cell using absolute reference, we have to include that $ sign. i.e. cell B5 will be written as: $B$5; B6 as $B$6; B7 as $B$7; and B8 as $B$8;
Having explained that, the formula in cell B13 is:
=($B$6 - $B$5 - $B$7)* $B$8
Summarize the history of artificial intelligence detailing its origin and future state in technology today.
Wrong answer will get reported
Answers
Scaled AI implementation can enhance team performance and strengthen corporate culture. Discover how BCG's AI-driven projects have aided in maximizing value for our clients. Learn About Our AI Products.
How does artificial intelligence work?The replication of human intelligence functions by machines, particularly computer systems, is known as artificial intelligence. Expert systems, language processing, speech recognition, and machine vision are some examples of specific AI applications.
What fundamental principle underpins artificial intelligence?Artificial intelligence is founded on the idea that intellect can be described in a way that makes it simple for a computer to duplicate it and carry out activities of any complexity. Artificial intelligence aims to emulate cognitive processes in humans.
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