The "withoutX" method takes a string as input and returns a modified string without the first and last characters if they are "x". If either the first or last character is not "x", the original string is returned unchanged.
Explanation:
The "withoutX" method can be implemented using conditional statements and string manipulation functions in Java. The method first checks whether the input string is null or empty, and returns it unchanged if it is. If the string is not empty, the method checks whether the first character is "x" and whether the last character is "x". If either the first or last character is "x", the method returns the substring of the input string without those characters. If neither the first nor last character is "x", the original input string is returned unchanged.
The implementation can use the "substring" function to remove the first and last characters and the "charAt" function to check the values of the first and last characters.
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An instrument used to inject a digital signal into a circuit is called a(n)
An instrument used to inject a digital signal into a circuit is called a signal generator.
A signal generator is an electronic device that generates electronic signals of various types and frequencies. These signals can be used for testing and troubleshooting electronic devices or circuits. Signal generators can generate analog signals, digital signals, or both. They can also be used to simulate different types of signals and conditions that may be encountered in a real-world scenario. In conclusion, a signal generator is an essential tool for engineers and technicians working with electronic devices and circuits as it allows them to test and analyze the performance of the device or circuit in a controlled environment.
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which standardized remote file system protocol replaced smb in windows 2000 server and later?
The standardized remote file system protocol that replaced SMB (Server Message Block) in Windows 2000 Server and later versions is known as CIFS (Common Internet File System).
CIFS is a dialect of SMB and provides enhanced features and improved interoperability with other operating systems. It was introduced to provide better compatibility, performance, and security for file sharing and remote access in Windows-based networks. CIFS supports file and printer sharing, authentication, access control, and other network services. It has become the de facto standard for sharing files and resources between Windows machines and has been widely adopted in enterprise environments.
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A(n) ________ report is produced when a user enters various values in a pivot table to filter data.
a.drill-down
b.SQL
c.ad hoc
d.parameterized
e.production
A. c.ad hoc is produced when a user enters various values in a pivot table to filter data.
What is the filter?
Within the setting of a table, clients can control the information by sifting, sorting, and selecting distinctive values, which at that point produces an advertisement hoc report reflecting the chosen information subset.
Turn tables are capable tools in information investigation that permit clients to summarize and analyze huge datasets. By association with the rotate table interface and selecting particular values or criteria, clients can powerfully channel and others.
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examples of softcopy output devices
Softcopy output devices are devices that produce digital or electronic outputs that can be viewed on a screen or display.
Here are some examples of softcopy output devices:
1. Computer monitors: These are the most common softcopy output devices that display digital information on a screen. They come in various sizes and resolutions.
2. Projectors: Projectors display digital information onto a large screen or wall and are commonly used for presentations in conference rooms and classrooms.
3. E-readers: These are devices used for reading digital books, articles, and other publications.
4. Smartphones and tablets: These devices display digital information on their screens and are commonly used for communication, entertainment, and browsing the internet.
5. Digital cameras: These devices display digital images on a screen and allow for easy viewing and editing of photos and videos.
6. Virtual reality headsets: These devices display digital environments in a 3D format, allowing for immersive experiences.
Overall, softcopy output devices are essential for displaying digital information and can be found in various electronic devices.
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the keyboard instrument that uses various sets of pipes to create contrasting colors is:
The keyboard instrument that uses various sets of pipes to create contrasting colors is the pipe organ. This instrument features a unique combination of design, mechanics, and acoustics, enabling it to produce a wide range of tonal colors and dynamic levels.
A pipe organ is typically large and complex, often found in churches, concert halls, and other grand settings.The pipe organ's distinguishing feature is its pipes, which are responsible for generating the instrument's sound. These pipes are organized into different sets called ranks, with each rank producing a specific tone and timbre. By combining various ranks through a system of stops and couplers, organists can create a diverse palette of tonal colors and textures to suit the music being played.A pipe organ has multiple keyboards, or manuals, which allow the player to control different divisions of pipes simultaneously. This enables the organist to achieve intricate layering of sounds and provides greater flexibility in performing complex musical works. Additionally, a pipe organ usually includes a pedalboard, allowing the performer to play bass notes with their feet.The organ's diverse capabilities make it an important instrument in both sacred and secular music, with its majestic sound often associated with religious ceremonies and classical compositions. However, it has also been used in various genres like jazz, rock, and even film scores. Overall, the pipe organ's versatility and rich tonal colors make it a unique and valuable addition to the world of music.
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A built-in formula, such as =SUM, is called a(n) Choose one answer. a. argument. b. operator. c. constant. d. function.
A built-in formula, such as =SUM, is called a(n) **function**. In Excel, a function is a built-in formula that performs a specific calculation or operation, such as addition, multiplication, or counting.
Functions are identified by their name, which typically begins with an equal sign (=) followed by the function name and its arguments, enclosed in parentheses. For example, the SUM function adds a range of numbers together, while the AVERAGE function calculates the average of a range of numbers. Functions can take one or more arguments, which are values, ranges, or cell references used by the function to perform its calculation. Excel includes a wide range of built-in functions, organized into categories such as Math & Trig, Statistical, Date & Time, and Financial. Users can also create their own custom functions using VBA (Visual Basic for Applications) programming.
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the digit to the far right in any base system always has a place value of
The digit to the far right in any base system always has a place value of 1.
In any base system, the value of a digit depends on its position or place value. The position of a digit in a number determines the power of the base to which it is raised. The digit to the far right is in the first position or the one's place, and its place value is always 1. Moving one position to the left, the next digit has a place value of the base, or base^1. For example, in base 10 (decimal), the digit to the far right has a place value of 1, the next digit to the left has a place value of 10, the digit two places to the left has a place value of 100, and so on. In other base systems, such as binary (base 2), the place values are powers of 2, and the digit to the far right still has a place value of 1.
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explain the main components and their functions of the android operating system
The Android operating system is one of the most popular mobile operating systems in the world. It is an open-source platform that is highly customizable, flexible, and user-friendly. The Android operating system is comprised of several components, each with a specific function.
One of the main components of the Android operating system is the kernel. The kernel is the core of the operating system, responsible for managing system resources such as the CPU, memory, and input/output operations. It also manages security, power management, and communication between hardware components and software.
Another important component of the Android operating system is the user interface. The user interface is what users interact with when they use their devices. It includes the home screen, app drawer, notification panel, and settings menu. The user interface is designed to be intuitive and user-friendly, allowing users to access their apps and features easily. The Android operating system also includes several system apps, such as the dialer, messaging app, and calendar. These apps are pre-installed on the device and provide core functionality to users.
Finally, the Android operating system includes the application framework, which provides developers with a set of tools and APIs for building apps. The application framework includes libraries for graphics, multimedia, networking, and more. Overall, the Android operating system is a complex system comprised of several components that work together to provide users with a seamless mobile experience. Its flexibility and customization options make it an ideal platform for developers and users alike.
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the program specification is a clear statement of the goals and objectives of the project.
T/F
True.
The program specification is a detailed description of what the project aims to achieve and the outcomes that are expected. It outlines the goals, objectives, and requirements of the project.
A well-defined program specification is essential to ensure that the project is on track and that all stakeholders have a clear understanding of what is expected. It helps to avoid confusion and misunderstandings that could lead to project delays, cost overruns, and other problems.
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An e-mail program creates a(n) ____ document and attaches it to the e-mail message. a. Multipurpose Internet Mail Extensions (MIME) b. Address Resolution Message (ARM) c. Transport Control Protocol (TCP) d. Internet Protocol (IP)
Answer:
Multipurpose Internet Mail Extensions (MIME)
Explanation:
quantitative risk analysis need not be done for projects that are large and complex.
Quantitative risk analysis is a vital component of project management, enabling project teams to identify potential risks and their impacts on project outcomes. However, the need for conducting quantitative risk analysis is not necessarily dependent on the size or complexity of a project.
For instance, smaller projects with simple scopes may have relatively fewer risks compared to larger and more complex projects. However, it is crucial to note that even small projects could still have significant impacts on an organization, particularly if they are strategic projects. Therefore, the importance of conducting a quantitative risk analysis should not be underestimated, regardless of the project size or complexity. Moreover, projects that are deemed to be large and complex may require more extensive and comprehensive risk analysis due to their nature and scope.
Conducting a quantitative risk analysis for such projects could provide project teams with a more comprehensive understanding of the potential risks and their impacts, enabling them to prioritize and address the risks effectively. In conclusion, while quantitative risk analysis may be perceived as more critical for larger and complex projects, it is essential to conduct it for all projects, regardless of their size or complexity. This ensures that project teams have a complete understanding of the potential risks, allowing them to develop an appropriate risk management plan that mitigates those risks and ensures project success.
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researchers state a level of significance in terms of an alpha level. the alpha level indicates? a. the probability of committing a Type I error
b.the probability of incorrectly rejecting the null hypothesis
c.the probability value for the rejection region
d. all of these
The alpha level indicates the probability of committing a Type I error. Therefore, option (a) is the correct answer.
In hypothesis testing, the alpha level (often denoted as α) is the level of significance, or the maximum probability of committing a Type I error. A Type I error occurs when a null hypothesis is rejected when it is actually true. In other words, it is a false positive. The alpha level is typically set at 0.05 or 0.01, indicating that the researcher is willing to accept a 5% or 1% probability of making a Type I error. The probability of incorrectly rejecting the null hypothesis is referred to as the Type I error rate, and it is controlled by the alpha level. The probability value for the rejection region is the p-value, which is calculated based on the test statistic and the degrees of freedom. Therefore, options (b) and (c) are not correct.
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Which of the following is a major resource for detailed information on a computer virus?
A. The MIT Virus Library
B. The Microsoft Virus Library
C. The F-Secure Virus Library
D. The National Virus Repository
C. The F-Secure Virus Library. The major resource for detailed information on a computer virus is the F-Secure Virus Library. This library contains extensive information on various viruses, including their behavior, characteristics, and methods of propagation. It also provides users with comprehensive solutions and tools to remove and protect against viruses.
The F-Secure Virus Library is constantly updated with the latest virus definitions, ensuring that users have access to the most current information and protection against emerging threats. Other resources such as the MIT Virus Library and the National Virus Repository are also valuable sources of information, but they may not offer the same level of detail and currency as the F-Secure Virus Library. It is important to note that Microsoft maintains its own virus library, but it primarily focuses on viruses that specifically affect Microsoft products and may not provide comprehensive coverage of all types of viruses. Overall, the F-Secure Virus Library is a reliable and essential resource for anyone seeking detailed information on computer viruses.
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State the steps (in the correct order) required to find the number of words in the paragraph above, using a word processing program.
The steps are as follows:
To check the amount of characters, lines, and paragraphs in your work, click on the word count in the status bar. Click where you want the word count to display in your document. Insert > Quick Parts > Field is the next step. Click NumWords in the Field nameslist, then OK.
When you begin typing what looks to be a numbered list, Word converts your manually entered "numbers" to an automated numbered list.
The major advantage of this option is that you do not need to click any buttons to begin numbering, and you can also select your numbering style.
Features of Microsoft Word include but are not limited to:
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in conditional formatting what happens if the cell value does not pass the logical test?
Answer:
The cell is formatted however you have determined for the FALSE result.
Explanation:
Which of the following is NOT a part of the three layered architecture? Select one: a. Link b. Network c. End-to-End d. Host.
The option that is NOT a part of the three-layered architecture is c. End-to-End.
The three-layered architecture refers to the conceptual model used to understand and design computer networks. The three layers are:
Host: The host layer represents the end-user devices or computers that initiate or receive network communication. It includes devices like computers, laptops, smartphones, or any other device that interacts with the network.
Network: The network layer is responsible for routing and forwarding data packets between different networks. It includes routers and switches that facilitate the transfer of data between hosts.
Link: The link layer is responsible for the physical transmission of data over a specific link or medium, such as Ethernet, Wi-Fi, or optical fibers. It handles tasks like framing, error detection, and media access control.
Therefore, the correct answer is c. End-to-End as it is not a part of the three-layered architecture.
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Given a string of odd length, return the string length 3 from its middle, so "Candy" yields "and". The string length will be at least 3.
middleThree("Candy") → "and"
middleThree("and") → "and"
middleThree("solving") → "lvi"
public String middleThree(String str) {
}
The "middleThree" method takes a string of odd length and returns the three characters in the middle of the string.
Explanation: To implement the "middleThree" method, we need to first check if the input string has an odd length. If the length is odd, we can calculate the index of the middle character by dividing the length of the string by 2 and rounding down to the nearest integer. We can then use this index to extract the three characters in the middle of the string using the substring method. Finally, we can return the extracted substring as the output of the method. If the length of the input string is even, we can choose to return the middle two characters or any other desired behavior. Here is an example implementation of the "middleThree" method:
public String middleThree(String str) {
int length = str.length();
int middleIndex = length / 2;
return str.substring(middleIndex - 1, middleIndex + 2);
}
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Windows users who want to allow multiple people use of their computer can add a(n) ____ for each user. (a) index (b) account (c) digest (d) customization
Windows users who want to allow multiple people to use their computers can add an account for each user. The correct answer is (b) account.
User accounts in Windows provide a personalized environment and a separate set of files and settings for each user.
By creating separate accounts, each user can have their own username and password, allowing them to log in to the computer with their specific credentials. This ensures that each user has their own private workspace and access to their personal files, applications, and settings.
User accounts in Windows also offer different permission levels, such as administrator or standard user, which determine the level of access and control a user has over the system. Administrators typically have full control and can make system-wide changes, while standard users have more restricted access to protect the integrity of the system.
Adding user accounts is a common practice for shared computers, workplaces, or family use, as it allows multiple individuals to have personalized experiences while maintaining privacy and security.
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Which of the following is used to verify that a downloaded file has not been altered?
A. Private key. B. Asymmetric encryption. C. Hash Symmetric encryption.
C. Hash Symmetric encryption. Hash functions are widely used to verify that a downloaded file has not been altered. A hash function takes input data and produces a fixed-length value called a hash code or message digest. The hash code is unique to the input data, and any change in the input data will result in a different hash code.
To verify the integrity of a downloaded file, the user calculates the hash code of the original file and compares it with the hash code of the downloaded file. If the two hash codes match, it is highly likely that the downloaded file is identical to the original file. On the other hand, Private key and Asymmetric encryption are not used to verify the integrity of a downloaded file. Private key encryption is used to secure communication between two parties and ensure confidentiality, while Asymmetric encryption is used for key exchange and digital signatures.
In summary, to verify the integrity of a downloaded file, Hash Symmetric encryption is commonly used as it is fast and efficient. It is important to ensure that the hash function used is secure and widely accepted to prevent any potential attacks on the downloaded file.
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how many types of reports can you create using the solver results dialog box?
Using the Solver Results dialog box, you can create two types of reports: Answer and Sensitivity.
Answer Report: The Answer Report provides detailed information about the solution obtained by the Solver. It includes the variable values that optimize the objective function, the values of other cells in the model, and the final value of the objective function itself. This report helps you understand the optimal solution and its corresponding values.
Sensitivity Report: The Sensitivity Report provides insights into the sensitivity of the solution to changes in the constraints or objective function. It includes information such as the shadow prices (also known as dual values) for the constraints, indicating how much the optimal solution would change with respect to changes in those constraints. It also provides sensitivity analysis for the objective function coefficients, showing the impact of changes in those coefficients on the optimal solution.
Both reports are valuable for analyzing and understanding the results of the Solver and gaining insights into the optimization problem at hand. The Solver Results dialog box provides an easy way to generate these reports, which can aid in decision-making and further analysis of the optimized solution.
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According to the textbook, which of the following statements about documentary films is false?
A) Documentary films show an unbiased and unvarnished picture of how the world really is.
B) Some of the earliest documentary films grew out of newsreels.
C) Documentary films sometimes use a style known as cinema verité.
D) Documentary films sometimes take on controversial subjects.
E) Documentary films, often educational and noncommercial, usually require the backing of industry, government, or philanthropy to get made.
The false statement about documentary films is A) Documentary films show an unbiased and unvarnished picture of how the world really is.
Documentary films, while they aim to present factual information and depict real-world subjects, are still subject to bias and interpretation. Filmmakers have their own perspectives, and the selection and editing of footage can influence the portrayal of events or issues. Therefore, documentary films may not always provide an entirely unbiased or unvarnished representation of reality.
While documentary films strive to present real-world subjects and convey factual information, it's important to acknowledge that they are still influenced by various factors that can introduce bias and subjectivity. Here are a few reasons why documentary films may not always provide an unbiased and unvarnished picture of the world:
Filmmaker's perspective: Documentary filmmakers have their own perspectives, beliefs, and values that shape the way they approach a subject. Their personal views can influence the way they select and present information, potentially leading to a particular narrative or angle.Selective editing: Documentaries involve hours of recorded footage, and filmmakers carefully choose which segments to include and how to arrange them. This process inherently involves subjective decisions that can impact the overall portrayal of events or issues. Interview and testimonial editing: Interviews and testimonials from individuals involved in the subject matter are common in documentaries. However, filmmakers have control over which parts of these interviews are included and how they are edited.Therefore option A is correct.
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how do many people hope that the internet will have a democratic influence on society?
Many people hope that the internet will have a democratic influence on society by providing greater access to information and enabling greater participation in decision-making processes.
The internet has the potential to increase access to information and provide a platform for individuals and groups to share their perspectives and opinions with a wider audience. This can help to promote greater transparency and accountability in government and other institutions, and allow more diverse voices to be heard. In addition, the internet can facilitate greater collaboration and participation in decision-making processes, such as through online forums and crowdsourcing platforms. However, there are also concerns that the internet can exacerbate inequalities and perpetuate the spread of false or misleading information, and it is important to continue to explore ways to ensure that the internet promotes democratic values and principles.
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Which of the following is used to process certificates and private/public key information?
A) HTTP
B) Secure Sockets Layer/Transport Layer Security
C) File Transfer Protocol
D) data capture tools
The correct answer is B) Secure Sockets Layer/Transport Layer Security.
Secure Sockets Layer (SSL) and its successor Transport Layer Security (TLS) are cryptographic protocols that provide secure communication over the internet. They are used to establish an encrypted link between a web server and a web browser, allowing sensitive information such as credit card numbers, login credentials, and other personal information to be transmitted securely.
SSL/TLS also plays a crucial role in processing certificates and private/public key information. SSL/TLS certificates are digital documents that authenticate the identity of a website and enable secure communication between the website and its users. The certificate contains the website's public key, which is used to encrypt data, and the website's private key, which is used to decrypt data. The SSL/TLS protocol uses these keys to establish a secure connection and encrypt data as it is transmitted over the internet.
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you can use the ____ key(s) on the keyboard to navigate a worksheet.
Hello
"Up Arrow" key and "Down Arrow" key.
In the reflective-type optical sensor, one hole is an infrared emitting diode and the other hole is the receiver part of the optical sensor.
True
False
True. In a reflective-type optical sensor, one hole contains an infrared emitting diode that emits infrared light, and the other hole houses the receiver, which detects the reflected light from a nearby object.
In a reflective-type optical sensor, one hole houses an infrared emitting diode and the other hole houses the receiver part of the sensor. This setup allows the sensor to detect changes in the amount of reflected light, which can be used to detect the presence or absence of an object.
An infrared emitting diode that emits infrared light, and the other hole houses the receiver, which detects the reflected light from a nearby object. This setup allows the sensor to determine the presence or absence of an object based on the detected reflections.
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you need to create a user on your red hat enterprise linux system. what command should you use?
To create a user on your Red Hat Enterprise Linux system, you can use the "useradd" command followed by the username you wish to create. For example, to create a user with the username "john", you would enter the command "useradd john" in the terminal. This will create a user account with default settings, such as creating a home directory for the user.
However, if you want to customize the settings for the new user, you can use additional options with the "useradd" command. For example, you can set a custom home directory path with the "-d" option, or assign a specific group with the "-g" option. Creating users on your enterprise Linux system is an essential task for managing access and security. By using the "useradd" command, you can create new users quickly and efficiently, and customize their settings to suit your needs.
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the child process completes execution,but the parent keeps executing, then the child process is known as :group of answer choicesb) zombied) deadc) bodya) orphan
If a child process completes execution, but the parent process keeps executing without waiting for the child, the child process becomes a "zombie" process. The correct option for the given question is (b) zombie.
This means that the child process has finished executing but still has an entry in the process table and consumes system resources. When a process completes its execution, it becomes a "zombie" process if its parent does not wait for the process to terminate and does not call the wait() system call to collect its status. The zombie process remains in the process table as a "dead" process with a process ID until its parent process calls the wait() system call to read its exit status.
Once the parent process reads the exit status of the child process, the operating system removes the zombie process from the process table and frees its resources.
The correct option for the given question is (b) zombie.
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which command will show what is inside the compressed tarball with a name of ?
To view the contents of a compressed tarball with a specific name, you can use the command "tar -tvf filename.tar.gz" where "filename.tar.gz" is the name of the compressed tarball.
The "-t" option is used to display the contents of the archive, the "-v" option provides verbose output, and the "-f" option is used to specify the name of the archive file.
This command will list all the files and directories contained within the compressed tarball. If you want to extract the contents of the tarball, you can use the "tar -xvf filename.tar.gz" command. tar command to extract a specified archive.
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Caylin, an IT administrator, receives an email from a coworker that the company website, eloxnet.com, is not accessible. She decides to check if there is an issue that is preventing access to the website.
Which of the following PowerShell cmdlets should Caylin run first?
a. Test-NetConnection
b. Set-NetFirewallProfile
c. Get-NetAdapterStatistics
d. Get-NetIPConfiguration
Caylin should run the Test-NetConnection PowerShell cmdlet first to check if there is an issue preventing access to the eloxnet.com website.
This cmdlet tests connectivity to a remote host by sending ICMP echo requests or TCP connection attempts. It can help identify any network connectivity issues, such as firewall blocking, DNS resolution errors, or server availability problems. Once Caylin confirms that there is a connectivity issue, she can then investigate further with other cmdlets, such as Get-NetIPConfiguration or Get-NetAdapterStatistics, to diagnose the root cause of the problem. Set-NetFirewallProfile cmdlet is used to configure firewall rules, which is not relevant in this scenario.
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Consider the following methods.
/* Precondition: a > 0 and b > 0 /
public static int methodOne(int a, int b)
{
int loopCount = 0;
for (int 1 = 0; 1 < a / b; i++)
{
loopCount++;
}
return loopCount:
}
/* Precondition: a > 0 and b > 0 /
public static int methodTwo(int a, int b)
{
int loopCount = 0;
int i = 0;
while (i < a)
{
loopCount++;
i += b;
}
return loopCount;
}
Which of the following best describes the condition sunder which methodOne and methodTwo return the same value??
A. when a and b are both even
B. when a and b are both odd
C. when a is even and b is odd
D. when a % b is equal to zero
E. when a % b is equal to one
Answer:
The correct answer is (D) when a % b is equal to zero.
Explanation:
In methodOne, the loop runs until i is less than a/b, incrementing the loop counter each time. This means that the loop runs a/b times.
In methodTwo, the loop runs until i is equal to or greater than a, incrementing the loop counter each time. At each iteration, i is increased by b. This means that the loop runs a/b times, the same number of times as in methodOne.
Therefore, the two methods will return the same value when they have run the same number of times, which occurs when the loop runs a/b times. This only occurs when a % b is equal to zero, which means that a is a multiple of b.
