Using the codes in computational language in JAVA it is possible to write a code that complete the following class definition to implement this new feature. the undo operation only undoes one purchase.
Writting the code:CashRegister class is written twice
package cash;
public class CashRegister {
private int itemCount;
private double totalPrice;
public void addItem(double price) {
itemCount++;
totalPrice += price;
previous = price; //keep updating prev value for prince
}
if(previous != 0) {
totalPrice -= previous;
itemCount--;
previous=0; //make here prev 0 as undo should effect only one time
public void enterPayment(double amount) {
totalPrice -= amount;
}
/**
public double giveChange() {
double change = -totalPrice;
totalPrice = 0;
itemCount = 0;
previous = 0;
return change;
}
public void clear() {
itemCount = 0;
totalPrice = 0;
previous = 0;
}
}
package cash;
public class Tester {
public static void main(String[] args) {
CashRegister reg = new CashRegister();
reg.addItem(12.50);
reg.addItem(5.65);
reg.addItem(7.23);
reg.undo();
reg.addItem(7.25);
reg.enterPayment(20);
reg.enterPayment(10);
double change = reg.giveChange();
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Take an example of old communication technology and compare it with the new communication technology which is solving the same use case and describe how new communication technology has changed the future of communication
Any digital gadget that can be used to convey and receive information is referred to as communication technology.
Thus, Software, computer programs, gadgets, and message systems are examples of this technology. Technologies for effective communication are quick, effective, practical, and simple to use. They frequently make it possible for people to connect with one another from anywhere in the world.
Before communication technology, delivering even the most straightforward information took more time and effort than is possible to convey in 140 characters or less.
Information sharing is now simpler than ever because to the integration of technology into many forms of communication. Despite the huge number of devices, programs, and tools used in communication technology.
Thus, Any digital gadget that can be used to convey and receive information is referred to as communication technology.
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Give short answers.
h.
How have computers affected education?
i.
What roles do computers play at home?
j.What effects have computers had on the practice and enforcement of law?
k. How have computers changed entertainment?
Answer:
H) Well it depends how you put it. I'm Doing virtual School for my education. And it is so easy when we have technology out their to provide the help that we need. So I think it has affected education pretty good. You can Also google the answers.
I) Looking up Answers at home
J) Parents can check up on their child's school work and see if they can help them. Also The law is involved in Education.
K) It depend's on how you put it
Explanation:
Short Answers
The _______________ is part of the basic communication model and is the one responsible for putting the information together in a clear and concise manner and transmitting it to the receiver
The encoder is part of the basic communication model and is the one responsible for putting the information together in a clear and concise manner and transmitting it to the receiver.
An encoder is a device that converts a signal or data from one format to another, such as from analog to digital. Encoders are commonly used in communications systems to convert analog signals into digital signals that can be transmitted over digital communication channels.Encoders are also used in digital audio and video systems to convert analog audio and video signals into digital formats. In digital audio and video systems, encoders are used to compress and decompress audio and video data so that it can be transmitted more efficiently over digital communication channels.
There are different types of encoders, such as optical encoders, magnetic encoders, and absolute encoders.The encoder is an important part of the basic communication model because it takes the information that needs to be communicated and converts it into a format that can be transmitted over a communication channel. Without the encoder, the information would not be able to be transmitted in a clear and concise manner, making communication difficult and inefficient.
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Can someone create a zoom and invite me?
Answer:
How do you do that
Explanation:
I've never used zoom before
What is a printing paste?
A printing paste is a thick and viscous mixture of a colorant, such as a dye or pigment, and a binding agent, such as a thickener or a binder.
The paste is used in various printing techniques, such as screen printing and block printing, to transfer a design onto a substrate, such as fabric or paper. The printing paste is applied to a printing screen or block, and then pressed onto the substrate to transfer the design. The paste must be thick enough to hold the design, but also fluid enough to be applied smoothly and evenly. The exact formulation of a printing paste depends on the specific printing technique and substrate being used.
Printing pastes are widely used in the textile industry for a variety of applications, including fashion, apparel, home textiles, and industrial textiles. They are valued for their versatility, durability, and ease of use, and they offer a cost-effective way to produce high-quality printed fabrics in large volumes.
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3-46. Indicate the importance of APIs. What have been the advantages of DBS in creating a developer platform?
3-47. Explain what it means to think "outside of the box" in the context of DBS.
3-48. How well is DBS prepared for the future? Based on: API University. What are APIs and how do they work?
APIs or Application Programming Interfaces are crucial for businesses that want to interact with other businesses or software and allow developers to create new applications by integrating existing services and data.
DBS has found several advantages in creating a developer platform, which include the following:Advantages of DBS in creating a developer platform: Creating a developer platform has several advantages for DBS. Firstly, DBS has access to a range of developers who can create new applications using DBS's APIs.
This can create new revenue streams for the bank and give customers more options for banking services.Secondly, a developer platform can help the bank increase its brand recognition and visibility among potential customers.
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Security personnel, whose post is located outside the entrance to an alcohol establishment, has the primary responsibility to control the number of patrons entering and to check their IDs. Does the bouncer need to be certified
50 POINTS In a screen 480 units wide, what pattern of movement would you see if you scripted an enemy’s movement with the following blocks in Scratch:
Forever
Move, pick random x: 0 to 240, y: 0
Wait 3 secs
(loop arrow)
The pattern of movement that you would see if you scripted an enemy’s movement with the following blocks in Scratch is Move, pick random x: 0 to 240, y: 0.
What are the motion blocks in Scratch?Motion blocks is known to be a kind of movement that is part of the categories of Scratch blocks. They are known to be used to control a sprite's movement.
Note that The pattern of movement that you would see if you scripted an enemy’s movement with the following blocks in Scratch is Move, pick random x: 0 to 240, y: 0 as it shows a pattern.
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explain with a reason one situation in which it would be appropriate to use an interpreter
Answer:
when you want an instant result
Explanation:
the intepreter converts the program line by line
Consider the following method. public static String[] strArrMethod(String] arr) String[] result = new String(arr.length]; for (int j - 0; j < arr.length; j++) String sm = arr[i]; for (int k = j + 1; k < arr.length; k++) if (arr[k].length() < sm.length) sm - arr[k]; // Line 12 result[j] = SM; return result; Consider the following code segment. String[] test Two - {"last", "day" of "the", school","year"); String[] resultTrostrar Method(test Two) How many times is the line labeled e2 the strArrMethodilexecuted as a result of executing the code segment? 4 times a times s times 5 Times String[] result = new String(arr.length); for (int j = 0; j < arr.length; j++) String sm = arr[j]; for (int k = 1 + 1; k < arr.length; k++) if (arr[k].length() < sm.length) sm = arr[k]; // Line 12 } result[i] - sm; return result; Consider the following code segment string[] testTwo - {"last", "day", "of", "the". "school", "year"); String[] result Two = strArnMethod(test Two); How many times is the line labeled // Line 12 in the strArrMethod executed as a result of executing the code segment?a. 5 times b. 4b time c. 15 times d. 30 timese. 6 time
The given code segment is incomplete and contains errors, so the exact number of executions of the line labeled // Line 12 cannot be determined.
How many times is the line labeled // Line 12 in the strArrMethod executed as a result of executing the code segment?The given code segment defines a method `strArrMethod` that takes an array of strings as input. It initializes a result array with the same length as the input array. Then, it iterates over each element of the input array using a nested loop.
The outer loop iterates from 0 to the length of the input array, and the inner loop iterates from the current position of the outer loop variable to the end of the input array.
Inside the inner loop, it compares the length of the current element with the length of the smallest element found so far (`sm`). If a shorter element is found, it updates `sm`. Finally, it assigns `sm` to the corresponding position in the result array.
In the given code segment, the method `strArrMethod` is called with the `testTwo` array. Since the `testTwo` array has a length of 6, the outer loop of the `strArrMethod` method will be executed 6 times.
Inside each iteration of the outer loop, the inner loop will be executed from the current position of the outer loop variable to the end of the array. Therefore, the line labeled `// Line 12` will be executed multiple times in each iteration of the outer loop.
To determine the exact number of times the line labeled `// Line 12` is executed, we need to analyze the specific inputs and the conditions inside the inner loop.
However, the given code segment is incomplete and contains some errors. Therefore, it is not possible to provide a precise explanation or calculate the exact number of executions.
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2. What is the difference
between a folder and sub
folder
Answer:
In a computer file system, a subdirectory is a directory that is contained another directory, called a parent directory. A parent directory may have multiple subdirectories. In operating systems with a GUI such as Microsoft Windows, a directory is called a folder, and a subdirectory is called a subfolder.
a helpdesk operator is trounbleshooting issues on a windows client and wants to try to flush their dynamic ip address so that they can pull another one. which command will help the helpdesk operator do this?
The command that will help the helpdesk operator flush the dynamic IP address on a Windows client is ipconfig /release.
What is a dynamic IP address?A dynamic IP address is a type of IP address that is assigned to networked devices dynamically by the DHCP (Dynamic Host Configuration Protocol) server. The DHCP server assigns a new IP address every time the computer connects to the network.
The DHCP client sends a DHCP release message to the server with the assigned IP address when the device is disconnected from the network. In order to flush the dynamic IP address, a command is used. The command is "ipconfig /release." It allows the helpdesk operator to release the current IP address from the client device and get a new IP address from the DHCP server, which would help them troubleshoot their problems effectively.To release the current dynamic IP address, type the following command at the command prompt and press Enter:
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FILL THE BLANK. differences among members' attitudes, beliefs, and values are known as ______________. group of answer choices
The differences among members' attitudes, beliefs, and values are known as cultural diversity.
Cultural diversity refers to the presence of various cultural backgrounds, experiences, and perspectives within a group or organization. This diversity can enrich the group's collective knowledge, creativity, and problem-solving capabilities. However, it can also present challenges in communication and understanding.
In order to harness the benefits of cultural diversity, it is essential for members to practice tolerance, empathy, and open-mindedness. They should be willing to learn about and respect each other's cultural norms and traditions, and be sensitive to possible cultural misunderstandings. Additionally, effective communication strategies, such as active listening and asking clarifying questions, can help bridge any cultural gaps.
Promoting a culturally diverse and inclusive environment not only benefits the individuals involved, but also enhances the overall performance and success of a group or organization. By embracing cultural diversity and encouraging an open exchange of ideas, members can learn from each other's unique perspectives and contribute to a more innovative and adaptive group dynamic.
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true or false the development of cim systems solves the problem that existed between cad and cam systems in that blank . multiple choice question. people who use cad could not use cam cim allows cad and cam to talk to each other cad and cam had no production capabilities cad and cam conflicted with each other
The statement "The development of CIM (Computer Integrated Manufacturing) systems solves the problem that existed between CAD and CAM systems in that people who use CAD could not use CAM is true
Computer-Aided Design (CAD) refers to the use of computer systems to help in the creation, modification, analysis, or optimization of a design. CAD software aids engineers, architects, and other design professionals in creating precise 2D or 3D drawings and models of their projects. CAD drawings and models may then be used for analysis, manufacturing, or printing.
CAM (Computer-Aided Manufacturing) is a software used to plan, control, and execute the manufacture of parts and finished products. The aim of CAM is to reduce the time and cost of product manufacturing while also increasing productivity by automating processes.
CIM (Computer Integrated Manufacturing) refers to the use of computers to connect the manufacturing operations of an enterprise. CIM ensures that information is transferred quickly and efficiently between design, manufacturing, and other business operations, resulting in faster production, reduced costs, and improved quality.
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the data processing method used by fedex to track packages is an example of group of answer choices real-time processing. batch processing. online batch processing. real-time batch processing.
Data is processed practically instantly using real-time processing. This procedure doesn't involve any waiting or pausing.
Real-time processing: What is it?Real-time processing is a technique that virtually immediately processes data. This procedure doesn't involve any waiting or pausing. As soon as data enters these systems, it is processed, and the processed data is output. Real-time processing typically needs a constant flow of data due to its nature. Data streaming, radar systems, customer service systems, and bank ATMs are excellent examples of real-time processing in action, when prompt processing is essential to the effective operation of the system. Real-time processing works really well with Spark. the precise period of time that something occurs. Data may be partially analyzed by the computer in real time (as it comes in) March, R. H.
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Data is processed practically instantly using real-time processing. This procedure doesn't involve any waiting or pausing.
What is Real-time processing?Real-time processing is a technique that virtually immediately processes data. This procedure doesn't involve any waiting or pausing. As soon as data enters these systems, it is processed, and the processed data is output. Real-time processing typically needs a constant flow of data due to its nature. Data streaming, radar systems, customer service systems, and bank ATMs are excellent examples of real-time processing in action, when prompt processing is essential to the effective operation of the system. Real-time processing works really well with Spark. the precise period of time that something occurs. Data may be partially analyzed by the computer in real time (as it comes in) March, R. H.To learn more about Real-time processing refer to:
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Why is feedback from other people important when you create software?
Feedback connects your software to programming libraries.
Feedback helps you know what is good or bad about your program.
Feedback automatically fixes the errors in your code.
Feedback tells users how to use your software program in the right way.
The reason why feedback from other people is important when you create a software application (program) is: B. Feedback helps you know what is good or bad about your program.
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software programs (applications).
Basically, there are six (6) main stages involved in the creation of a software program and these are;
Planning.Analysis.Design.Development (coding).Deployment.Maintenance.After the deployment of a software program, the developers usually take feedback from end users, so as to know what is good or bad about their program.
In conclusion, feedback is very important and essential for software developers because it help them to know what is good or bad about a software.
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Answer:
k
Explanation:
An 8-bit computer has a register R. Determine the values of status bits C, S, Z, and V (according to the above figure) after the following instruction. Note that the initial value of register R is hexadecimal 72. Add immediate operand 20 to R S Z Z V
An 8-bit computer has a register R. Given that the initial value of register R is hexadecimal 72 and the following instruction adds an immediate operand 20 to R.
The values of status bits C, S, Z, and V are as follows:When 20 is added to R, the new value is 92 in hexadecimal notation.Carry (C) bit is 0 because there is no overflow.Sign (S) bit is 0 because the result is positive and the most significant bit (MSB) is 0.Zero (Z) bit is 0 because the result is not equal to zero.
Overflow (V) bit is 0 because there is no overflow.More than 100 words:The status bits C, S, Z, and V in the above scenario indicate the state of the machine after performing an arithmetic or logical operation on the data that is stored in the registers of the CPU. The values of these status bits depend on the results of the arithmetic and logical operations that were performed, as well as on the contents of the registers involved.
These status bits are important because they provide feedback on the outcome of the operation and can be used to determine what action the CPU should take next.In this scenario, we have an 8-bit computer with a register R, which is initially set to hexadecimal 72. An instruction is given to add the immediate operand 20 to R. After executing the instruction, the new value of R is 92. We can now determine the values of the status bits C, S, Z, and V.The carry bit (C) is set to 0 because there is no overflow in this case.
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What are the benefits of using disk cleanup as part of regular maintenance on a computer? Check all of the boxes that apply.
Trash is emptied to clear space on the hard drive.
Files that are no longer needed are deleted to clear space and help the computer run faster.
Accumulated temporary files are deleted to help the computer run faster.
Unnecessary program files that may slow down the computer are deleted.
Answer:
all of the above
Explanation:
Answer:
Trash is emptied to clear space on the hard drive.
Files that are no longer needed are deleted to clear space and help the computer run faster.
Accumulated temporary files are deleted to help the computer run faster.
Unnecessary program files that may slow down the computer are deleted.
Explanation:
It's all of the above
{CHANCE TO EARN 75 POINTS}
Using Python, create a function for the cost to buy a car with the following arguments:
-Initial Price
-Sales Tax
Sales Tax is about 4.2% in Virginia, 7.3% in California, and 6.3% in Texas.
Find the cost of buying a car with an initial cost of $22,000 in Virginia.
Find the cost of buying a car with an initial cost of $30,000 in Texas.
Find the cost of buying a car with an initial cost of $50,000 in California.
def getCarPrice(initialCost, salesTax):
return initialCost*(1+salesTax)
x = getCarPrice(22000, 0.042)
y = getCarPrice(30000, 0.063)
z = getCarPrice(50000, 0.073)
_____ is a type of memory that temporarily holds the program and data that is currently being processed.
The type of memory that temporarily holds the program and data that is currently being processed is known as RAM. RAM stands for Random Access Memory.
RAM is the primary memory for any computer device that stores the data of the running processes, running programs, operating system, and all the required data in temporary storage units.
RAM is volatile storage, which means that it does not store the data for the long term and once the power supply to the computer is turned off, all data saved in RAM is lost.
It is faster than the hard drive storage of the computer as it stores all the current tasks that are happening at the moment.
There are various types of RAM available in the market, such as Dynamic Random Access Memory (DRAM) and Static Random Access Memory (SRAM), Synchronous Dynamic Random Access Memory (SDRAM), and Double Data Rate (DDR) SDRAM.
RAM is crucial in a computer system as it is a necessary component for a computer to function properly.
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What icon indicated video mode?
Av
Tv
The video camera icon
The video camera icon indicated video mode.
The video camera icon is a universally recognized symbol that indicates video mode on electronic devices such as cameras, smartphones, and video recorders. This icon usually appears on the interface of the device, usually on the screen or as a button that you can press, when you are in video mode, and it allows you to record videos.
AV and TV icons are related to audio-video and television, but they are not used specifically to indicate video mode. AV icon can be used for different purposes such as indicating the audio-video input/output of a device or indicating an audio-video format. The TV icon is used to indicate the television mode, which typically refers to the display mode of a device.
Select the correct text in the passage.
Select the appropriate guidelines to create and manage files in the passage given below. (In parentheses)
Guidelines for organizing files and folders
First, (select a central location to organize all your files, folders, and sub-folders).
Then double-click the folder or folders to identify which file you want to move. Now (use Windows Explorer to navigate and paste the file in the
required location).
Effective file management helps reduce the stress of looking for files and saves you a lot of time. All file types have unique file extensions that helpyou (determine which program to use to open a particular file and to access its data.)
If your computer crashes, all files and folders on the desktop are lost and it is often impossible to recover them. You should (maintain your
personal and professional files separately.) The file system on your computer already (keeps track of the date the file was created and modified,)
Therefore, chronological sorting is not necessary.
It is a great idea to (categorize your data into folders.) It is even better to (segregate them further into sub-folders.) If you maintain a list of
sub-folders under every main folder, you will be able to access all your tasks easily. For example, you could put your school subjects under
different sub-folders to organize your data efficiently on your computer.
Any file you create and use should have a proper description. It is important to create accurate names for each file, especially if you have a large
number of files in a folder, and you need to (select a single file to work on.)
Answer:
The appropriate guidelines to create and manage files in the passage:
O. First, (select a central location to organize all your files, folders, and sub-folders).
O. Then double-click the folder or folders to identify which file you want to move.
O. Now (use Windows Explorer to navigate and paste the file in the
required location).
The correct text in the passage is:
O. It is a great idea to (categorize your data into folders.) It is even better to (segregate them further into sub-folders.) If you maintain a list of sub-folders under every main folder, you will be able to access all your tasks easily. For example, you could put your school subjects under different sub-folders to organize your data efficiently on your computer.
Explanation:
Answer:
Behold.
Explanation:
Why is it a good idea to only use one word for everything you create in Scratch, even though you can technically use two words for many commands, variables, etc.?
Answer:So if your in a situation where you need 1 of those words then your strategy would come in handy.
Explanation:
The primary master is distinguished form other name server for a domain by its ability to always read its data form a zone file on disk when the DNS service start up. True or false?
The job that is not considered a primary responsibility of an operating system is option A: Managing a library of functions and routines used by applications.However, it is worth noting that all the listed tasks may still be performed by an operating system, but managing a library is not typically considered one of the core responsibilities.
While managing a library of functions and routines is an important aspect of an operating system, it is not typically considered one of the core tasks that an operating system must perform. The primary responsibilities of an operating system include managing hardware and software resources, providing an interface for user interaction, and facilitating the execution of programs.
Option B, managing the memory and storage requirements for processing, is a crucial job of an operating system. The operating system allocates and manages memory resources to ensure efficient utilization and allocation of memory to running processes. It also handles storage operations, such as managing file systems and providing access to storage devices.
Option C, processing raw data and instructions into information, is another fundamental task of an operating system. The operating system is responsible for executing instructions, coordinating processes, and managing input/output operations to process data and produce meaningful information.
Option D, starting the GUI (Graphical User Interface), is also an important job performed by an operating system. The GUI provides a visual interface for users to interact with the computer system, and the operating system is responsible for initializing and managing the GUI environment.
In conclusion, among the given options, managing a library of functions and routines used by applications is not considered a primary job of an operating system. However, it is worth noting that all the listed tasks may still be performed by an operating system, but managing a library is not typically considered one of the core responsibilities.
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The______ function of word processing program will be the most useful for comparison
Answer:
In order to compare two documents in word, you should click at the view tab and then at the view side by side option in the top ribbon. When you click at that, a window will appear asking you which document you would like to compare side by side with the one that is already open and it gives you a list of word documents that are also open. Before you choose to compare two documents just make sure that you have opened both of them in word, so that they appear in the options. Once you chose the one you want, it will open in a new word window right next to the first one and you will be able to compare the two documents.
Explanation:
¿ Porque la madera presenta mayor resistencia a ser cortada en sentido travesal que en sentido longitudinal
If you spend time on social media, you probably see many infographics. How can you determine whether the information contained in them is trustworthy? When you create infographics, what can you do to make it more likely that the viewer will trust you?
Answer:
Provide sources.
Explanation:
Providing sources for your infographic would be the best I can think of.
Either a direct quote, a source for a graph, etc.
What are some more websites that are like Brainly?
How to Force Quit an Application on a Windows 10 PC ?
To force quit an application on a Windows 10 PC, you can follow these steps:
The StepsPress the "Ctrl," "Alt," and "Delete" keys simultaneously on your keyboard. This will bring up the Windows Security screen.
Click on "Task Manager" from the options provided. This will open the Task Manager window.
In the Task Manager window, click on the "Processes" tab.
Locate the application you want to force quit in the list of processes. You may need to scroll down to find it.
Select the application by clicking on it once.
Click on the "End Task" button at the bottom right corner of the Task Manager window.
A dialog box will appear asking if you want to end the task. Click on "End Task" again to confirm.
The application will now be forced quit, and you can close the Task Manager window.
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what are the two types of user accounts in windows server 2012?
Answer:
Administrator and User accounts
The two types of user accounts in Windows Server 2012 are:
1. Local User Accounts: These accounts are created and managed on an individual server or computer. They provide access to resources on that specific machine only.
2. Domain User Accounts: These accounts are created and managed by a centralized domain controller. They provide access to resources across the entire domain, allowing users to log in and access resources on any computer within the domain.
In summary, local user accounts are specific to a single machine, while domain user accounts grant access to resources across the entire domain.
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