How to create an object in a utility class based on if statement in Java? (Or based on a particular string)
class Example extends ParentClass {
private String[] array;
public static Example parseString(String lineToParse) {
array = lineToParse.split("\");
}
public ObjectType1() { // arguments: String, String, String
}
public ObjectType2() { // arguments: String, String, String, double, double
}
}
Answers
Assuming that you want to create an object of ObjectType1 or ObjectType2 based on the contents of the array variable in the Example class, you could use an if statement or switch statement to check the contents of the array and then create the appropriate object.
Here's an example implementation of the parseString method that does this:
public static Example parseString(String lineToParse) {
String[] array = lineToParse.split("\\");
Example example = new Example();
if (array[0].equals("ObjectType1")) {
example = new ObjectType1(array[1], array[2], array[3]);
} else if (array[0].equals("ObjectType2")) {
double arg4 = Double.parseDouble(array[4]);
double arg5 = Double.parseDouble(array[5]);
example = new ObjectType2(array[1], array[2], array[3], arg4, arg5);
}
return example;
}
In this example, we first split the input lineToParse into an array using the split method. We then check the first element of the array to see which type of object to create. If it's "ObjectType1", we create an object of ObjectType1 using the three strings in the array as arguments.
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Related Questions
the unary scope resolution operator is used: group of answer choices to access any variable in an outer block when a local variable of the same name is in scope. to access a global variable when it is out of scope. to access a local variable with the same name as a global variable. to access a global variable when a local variable of the same name is in scope.
Answers
The unary scope resolution operator is used "to access a global variable when a local variable of the same name is in scope". Hence the correct answer is option D, which is "to access a global variable when a local variable of the same name is in scope" .
The scope resolution operator allows the programmer to explicitly indicate which variable they want to access, either the global variable or the local variable. By using the scope resolution operator, the programmer can avoid naming conflicts and ensure that the correct variable is being accessed in the code.
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Among the different types of data models, ______ data models are the dominant one in use today, because they offer advantages over other data models, including: flexibility and scalability, simplicity, and reduced information ________
Answers
Relational data models are the dominant one in use today, because they offer advantages over other data models, including: flexibility and scalability, simplicity, and reduced information redundancy.
What is the scalability?Scalability is the ability of a system, network, or process to handle a growing amount of work in a capable manner or its ability to be enlarged to accommodate that growth. Scalability can be accomplished in a number of ways including increasing capacity of existing hardware and software, upgrading existing network infrastructure, and using more efficient algorithms. By scaling, companies and organizations can handle more customers, data, and transactions without sacrificing performance or availability. Scalability is a key factor for companies looking to build and maintain robust, reliable, and secure systems.
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true/false. project initiation is the second phase of the project management process, which focuses on defining clear, discrete activities and the work needed to complete each activity within a single project.
Answers
It is false that project initiation is the second phase of the project management process, which focuses on defining clear, discrete activities and the work needed to complete each activity within a single project.
Project initiation documentation also known as PID is one of the most important steps in the project management process that provides the base for any business project.
The project initiation documentation collects all the information that are important for beginning a project.
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A technician is installing a SOHO router to an after school community center. The customer would like to keep children from accessing inappropriate while browsing the web.
What actions would help this goal be accomplished?
a. Enable content filtering
b. port forwarding
c. MC address filtering.
Answers
Answer:A
Explanation:
Content filtering would allow this to happen.
Port forwarding only allows you to connect to other computers while on a private network. It does not filter out anything.
Assuming you meant MAC Address filtering, this would not solve the issue either. This would only disallow any computer without the specified MAC address to connect to the network.
Therefore, content filtering is the only answer that makes sense.
A subsidiary company, in a highly regulated country, where there is a legal requirement to produce fiscal reports under local GAAP, is about to configure their General Ledger. Given the following: Subledgers transferring to general ledger must use the local currency. There is a requirement to report to the parent company (not local currency) using International Financial Reporting Standards (IFRS).Which two ledger types should be configured to address this reporting requirement? (Choose two.)
a primary ledger with the local accounting convention
a reporting currency with the IFRS accounting convention
a primary ledger with the IFRS accounting convention
a secondary ledger with the IFRS accounting convention
a reporting currency with the local accounting convention
Answers
Two ledger types should be configured to address this reporting requirement are
A. a primary ledger with the local accounting convention.
D. a secondary ledger with the IFRS accounting convention.
What is IFRS?The reporting of specific kinds of transactions and events in financial statements is governed by a set of accounting standards called International Financial Reporting Standards (IFRS).
The International Accounting Standards Board created and maintains them (IASB). The abbreviation for the generally recognized rules for financial reporting in the United States is GAAP, or generally accepted accounting principles.
Therefore, the correct options are A and D.
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The source code of open source code _____.
a. is highly protected and only available to trusted employees and carefully vetted contractors
b. provides capabilities common to organizations and industries
c. serves the needs of a specific industry
d. is available to the public
Answers
Open-source software can be developed in a collaborative, public setting. The source code of open-source software is (D) available to the public.
What is open-source code?Open-source software (OSS) is computer software that has been made available under a license that gives users the freedom to use, examine, modify, and share the software and its source code with anybody for any reason.
Software that is open-source may be created in a collaborative, public manner.
Open-source software is a well-known example of this type of collaboration because any competent user is able to engage in its development online, thereby doubling the number of potential contributors.
Public confidence in the software is facilitated by the ability to study the code.
The public has access to open-source code's source code.
Therefore, open-source software can be developed in a collaborative, public setting. The source code of open-source software is (D) available to the public.
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TRUE/FALSE.supertype/subtype relationships should not be used when the instances of a subtype participate in no relationships which are unique to that subtype.
Answers
When instances of a subtype do not take part in any connections that are specific to that subtype, supertype/subtype relationships should not be used. Built-in components can be used to create packaged data models.
Can one subtype interact with another subtype?A supertype is a type of generic entity that is connected to one or more subtypes. A subtype is a division of an entity type that is important to the organisation and that differs from other subgroups due to certain traits or connections.
Can a supertype instance also be an instance of more than one subtype?It is possible for an instance of a supertype to belong to two or more subtypes at once. A bank has three different kinds of accounts.
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TRUE supertype/subtype relationships should not be used when the instances of a subtype participate in no relationships which are unique to that subtype.
Can one subtype interact with another subtype?A supertype is a type of generic entity that is connected to one or more subtypes. A subtype is a division of an entity type that is important to the organisation and that differs from other subgroups due to certain traits or connections.
Can a supertype instance also be an instance of more than one subtype?It is possible for an instance of a supertype to belong to two or more subtypes at once. A bank has three different kinds of accounts.
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TRUE/FALSE. The Hypervisor Clustering architecture relies on the use of heartbeat messages to determine whether a given hypervisor within a cluster is active and available.
Answers
FALSE The Hypervisor Clustering architecture relies on the use of heartbeat messages to determine whether a given hypervisor within a cluster is active and available.
What is the heartbeat and hypervisor clustering architecture?In order to ensure that active virtual servers are moved to another physical server in the event of a failure, hypervisors are clustered among several of them. Application. To continue status monitoring, heartbeat messages are sent between clustered hypervisors and a central VIM.
What function does the hypervisor Mcq have?Hypervisors: Enable the use of virtual machines to execute an operating system independently of the underlying hardware. Share your computer's memory, storage, and computational resources.
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The given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented. The program fails and throws an exception if the second input on a line is a string rather than an int. At FIXME in the code, add a try/catch statement to catch ios_base::failure and output 0 for the age.
Ex: If the input is:
Lee 18
Lua 21
Mary Beth 19
Stu 33
-1
then the output is:
Lee 19
Lua 22
Mary 0
Stu 34
Answers
Note that the code for the above instructions is given as follows:
#include <iostream>
#include <string>
#include <ios>
using namespace std;
int main() {
string name;
int age;
while (cin >> name && name != "-1") {
try {
cin >> age;
age++;
cout << name << " " << age << endl;
} catch (ios_base::failure& e) {
cout << name << " " << 0 << endl;
}
}
return 0;
}
What is the rationale for the above response?The try/catch statement is used to catch the exception ios_base::failure that is thrown when the second input on a line is not an integer.
If an exception is thrown, the code inside the catch block is executed, which outputs the name and 0 as the age. If no exception is thrown, the code inside the try block is executed, incrementing the age by 1 and outputting the name and the incremented age.
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Define a function in c called ExactChange that takes the total change amount in cents and an integer array as parameters. Function ExactChange() calculates the change using the fewest coins and stores the number of each coin type used into the array parameter. Index 0-3 of the array parameter should contain the number of pennies, nickels, dimes, and quarters respectively. Then write a main program that reads the total change amount as an integer input, calls ExactChange(), and outputs the change, one coin type per line. Use singular and plural coin names as appropriate, like 1 penny vs. 2 pennies. Output "no change" if the input is 0 or less.
Answers
The six coin denominations are stored in the coin Denominations array, decreasing in value. The array's denominations are represented by the number of coins in the num Coins variable.
How can a coin change issue be resolved?The coin change problem has two solutions: the first is a naive solution, which is a recursive solution, and the second is a dynamic solution, which is an effective solution for the coin change problem.
void ExactChange(int* coinsArray, int* changeAmount) Int numCoins = sizeof(coinDenominations) / sizeof(coinDenominations[0]); int coinDenominations[] = 100, 50, 25, 10, 5, 1;
Coins Array[i] = change Amount / coin Denominations[i] for (int I = 0; I num Coins; i++); change Amount = change
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Effective presentations are:
Answers
Answer:A good presentation should be concise and should be focused on the topic. It should not move off-track. A good presentation should have the potential to convey the required information. The fear should be transformed into positive energy during the presentation. Be calm and relaxed while giving a presentation.
Explanation:
virtualization is the ability to install and run multiple operating systems concurrently on a single physical machine. windows virtualization includes several standard components. drag the component on the left to the appropriate description on the right. (each component can be used once, more than once, or not at all.)
Answers
A file used to store virtual machines that are a component of the host operating system (VHD) (refer to the correct matching below.)
What is virtualization?
The act of creating a virtual (rather than an actual) version of something at the same abstraction level in computing, including virtual computer hardware platforms, storage devices, and computer network resources, is known as virtualization or virtualization (sometimes abbreviated v12n, a numeronym).
The concept of virtualization first emerged in the 1960s as a way to conceptually divide the system resources offered by mainframe computers among many applications.
So, the correct matching would be:
1. A file that is part of the host operating system and functions as a storage area for the virtual machine (VHD).
2. A thin layer of software called a hypervisor sits between the hardware and the guest operating system.
3. The virtual machine's guest operating system is a software representation of a computer that runs programs.
4. The physical Machine is the host operating system that is equipped with hardware like storage devices, RAM, and a motherboard.
5. Virtual Machine appears to be an independent and autonomous system.
6. Enables direct communication between virtual machines and hardware, bypassing the host operating system - Hypervisor
Therefore, a file is used to store virtual machines that are a component of the host operating system (VHD).
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on one side we have a lot of interconnected hardware and on the other side we have a user that wants to run programs that make use of that hardware. give an example that shows how operating systems sit in the middle of these two sides, bridging this (hardware/user) gap. (note: you can just use the major computer components we discussed in the description, no need to get too low level)
Answers
With its control of the computer's memory, an operating system serves as a link between hardware and the user. The hardware does not directly allow the user to access the memory of the computer while
A computer's operating system is a piece of software that acts as a conduit between its users and its hardware. In order for users to execute programmes and carry out operations on the computer, its main purpose is to manage and organise the numerous resources of a computer system, including the memory, processor, input/output devices, and other peripherals. Operating systems offer a layer of abstraction that protects users from the hardware's technical specifications and enables them to communicate with the computer through an intuitive interface. Operating systems are also crucial for the smooth operation of contemporary computer systems since they offer services like security, resource allocation, and process management.
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Which of the following is a correct statement about the balance among prevention, detection, and response (PDR)? The greater the sensitivity and quantity of the data at issue, the more carefully the balance among these three must be evaluated.
Answers
The greater the sensitivity and quantity of the data at issue, the more carefully the balance among these three must be evaluated,
is a correct statement about the balance among prevention, detection, and response (PDR).
Prevention, detection, and response are the three key components of an effective security strategy. Prevention involves taking measures to stop security incidents from occurring in the first place. Detection involves identifying and alerting security teams to potential security incidents as quickly as possible. Response involves taking action to mitigate the impact of security incidents and to restore normal operations as quickly as possible.
The appropriate balance among prevention, detection, and response will depend on the specific context, risks, and objectives of the organization or system being protected. When dealing with sensitive or large amounts of data, it is especially important to carefully evaluate the balance among these three components.
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Which of the following physical layer technologies has the highest transmission rate and lowest bit error rate in practice? Fiber optic cable Coaxial cable Twisted pair (e.g., CATS, CAT6) 802.11 WiFi Channel Satellite channel O 4G/5G cellular
Answers
The transmission rate and bit error rate of fibre optic cable technology are typically the highest and lowest, respectively, when compared to other physical layer technologies.
Faster data transfer speeds are made possible by fibre optic cables' larger bandwidth compared to competing technologies. Moreover, they are immune to electromagnetic interference, which is a typical issue with other types of connections. Moreover, fibre optic cables are less vulnerable to damage from environmental elements like moisture and temperature. The transmission speeds and error rates of wireless technologies like 802.11 WiFi and 4G/5G cellular are much lower due to interference from other devices and physical impediments, and coaxial and twisted pair cables are slower and less dependable than fibre optic cable. High transmission rates are possible for satellite channels, although meteorological factors and physical impediments may compromise their dependability.
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cse446 what are the limitation of the web application of html5 with javascript? select all that apply.
Answers
There are several limitations of web applications built with HTML5 and JavaScript. Some of these limitations include:
Security concerns: Web applications built with HTML5 and JavaScript can be vulnerable to security threats such as cross-site scripting and SQL injection attacks.Offline access: HTML5 and JavaScript do not provide robust support for offline access. Although some features like local storage and application cache are available, they have limitations in terms of data storage and synchronization.Performance issues: Web applications built with HTML5 and JavaScript can suffer from performance issues when processing large amounts of data or complex operations. This can result in slow load times, unresponsive user interfaces, and other issues.Browser compatibility: Web applications built with HTML5 and JavaScript can have compatibility issues with different browsers and devices, requiring developers to test and optimize their applications for multiple platforms.To know more about JavaScript visit:
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FILL THE BLANK a ____ error does not prevent the program from running, but causes it to produce incorrect results.
Answers
Answer:
Logic Error
Explanation:
Unlike compiler errors, which are caught by the IDE, logic errors are flaws within the program's structure/logic that produces incorrect results while still being able to compile and run the program.
Which of the following statements accurately describe null field values? Select all the options that apply. a. A null field value indicates unknown data. b. You enter a null value by leaving a field blank in a record. c. You can use the Is Null criterion to select records with null values. d. You enter a null value by typing two quotation marks ("").
Answers
The statements that accurately describe null field values are:
a: A null field value indicates 'unknown data'
b: You enter a null value by leaving a field blank in a record
c: You can use the 'Is Null' criterion to select records with null values
Null field values are used in databases to represent missing or unknown data. A null value means that the value of a field is not currently known or has not been entered into the database. Null values can be entered by leaving a field blank when entering a record or by explicitly assigning a null value to a field.
However, statement d is not accurate, as entering two quotation marks ("") is used to represent an empty string, not a null value.
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FILL IN THE BLANK. The command-line command _______ 127.0.0.1 -l 65000 -w 0 -t will send multiple large packets to a computer, and when initiated by multiple senders may cause a denial-of-service attack.A. pingB. ddosC. tracertD. dos
Answers
The answer is DDOS.(Option B) The given command is a commonly used command for launching a distributed denial-of-service (DDoS) attack, which involves sending multiple large packets to a target computer or network from multiple sources, thereby overwhelming the target system and causing a disruption of service.
The command sends packets to the IP address 127.0.0.1 (which is a loopback address that refers to the local host), using various parameters such as the port number (-l), packet size (-w), and time duration (-t).
How can DDOS be prevented?There are several ways to prevent DDoS attacks, including implementing firewalls and intrusion prevention systems, using content delivery networks (CDNs) or cloud-based services that can absorb traffic, and using load balancers to distribute traffic evenly across multiple servers.
Note as well that monitoring network traffic and identifying unusual traffic patterns can help to detect and mitigate DDoS attacks.
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Private variables:
A.are accessible only by the class it was defined in.
B.are accessible only by the class it was defined in, and any class derived from that class
C.are accessible outside the class
Answers
Answer:
A.are accessible only by the class it was defined in.
Explanation:
pirate variables are only visible and accessible only inside the class they belong to not outside to any other class or
Question 3 of 10
What information system would be most useful in determining what direction
to go in the next two years?
OA. Decision support system
B. Management information system
C. Executive information system
D. Transaction processing system
Answers
Executive information system would be most useful in determining what direction to go in the next two years. The correct option is C.
What is executive information system?The best tool for deciding where to go in the following two years would be an executive information system.
An information system called an executive information system is created to give executives and other top-level managers quick and simple access to the data they need to make critical strategic choices.
It offers high-level summaries of data about a company's performance, including financial, sales, and market statistics, which can be used to assist strategic planning and decision-making.
Therefore, the optimum choice for determining the course to take over the next two years would be an executive information system.
Thus, the correct option is C.
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is done by comparing the input plaintext to the output ciphertext to try to determine the key used to encrypt the information.
Answers
A method that compare the input plaintext to ciphertext for determine the key of information is called: linear cryptanalysis.
The process of converting between plaintext, which is readable text, and ciphertext, which is unreadable text, is known as cryptography. This takes place as follows: The sender changes the message's plaintext to ciphertext. Encryption is the name of this step in the procedure. Encoding data is the process of encryption in cryptography. This technique transforms the information's initial plaintext representation into an alternate version known as ciphertext.
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A user ____ utilizes standard business software, such as Microsoft Word or Microsoft Excel, which has been configured in a specific manner to enhance user productivity.
Answer
application
configuration
interface
interpolation
Answers
A user application makes use of common business applications software like Microsoft Word or Excel that have been specifically set up to increase user productivity.
A user application is a program developed using standardized software and tailored. User interface (UI) design is a method used by designers to develop user interfaces for software or electronic devices with an emphasis on appearance or style.
Graphical user interfaces and other types, such as voice-controlled interfaces, are referred to as "UI design." to the needs of the user that cannot be met by an existing system.UI design, which is frequently confused with UX design, is more focused on the appearance and general feel of a design. In UI design, you, the designer, create a crucial component of the user experience. The complete user experience is covered by UX design. One comparison is to think of UI design as the dashboard and UX design as the automobile.
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assuming you are sally parker, describe the process you will initiate to form the cvro and the protocol for decision making in the network.
Answers
The process that will initiate to form the CVRO and the protocol for decision making in the network is:
Identifying potential hazards. Developing response plans and procedures.Organizing training and exercises.Coordinating resources and communication.In terms of decision-making protocols, it is important to establish clear lines of communication, define roles and responsibilities, and prioritize the safety and needs of the community.
It can be helpful to establish a decision-making process that involves consultation and collaboration with community members and relevant stakeholders, as well as a framework for addressing conflicts and resolving issues. The specific protocol can depend on the size and structure of the organization and the needs of the community.
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3. (6pts) Let h1 and h2 be two hash functions. Show that if either h1 or h2 is collision resistant, then the hash function h(x) = h1(x) ||h2(x), is collision resistant. (here "| means concatenation)
Answers
As we have shown that h1 or h2 is a collision-resistant function, thus h1(x) || h2(x) is collision-resistant. Given, h1 and h2 be two hash functions. And, | denotes concatenation.
Proof: Suppose we have two input values 'x' and 'y' and h1 and h2 are the hash functions such that: h1(x) = h1(y), h2(x) = h2(y)
Let's define h(x) = h1(x) || h2(x) and h(y) = h1(y) || h2(y).Now we have to show that h(x) = h(y).
Then h1(x) || h2(x) = h1(y) || h2(y) implies that h1(x) = h1(y) and h2(x) = h2(y).It means either h1 or h2 is collision-resistant, then it must be hard to find different inputs with the same output. Thus h1(x) || h2(x) is collision-resistant.
For given hash functions h1 and h2, let's suppose that h1 is a collision-resistant function. Now, if we take any input 'x' and 'y', then we have h1(x) = h1(y) then x and y must be same to get the same output.
If we take another hash function h2 and x and y, then it is not sure that they are same as we have taken any function. But we can see that whatever the value of x or y, we can't get the same output until we take the same values. Thus h1(x) || h2(x) is collision-resistant.
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Spotify interrogated 400 clients and observed that on average, a client streams every week 42 different artists! However, the standard deviation for this number is 15. What is the confidence interval for the true average number of artists listened by all Spotify clients for a 10% alpha risk?
Answers
We can say with 90% confidence that the true average number of artists listened by all Spotify clients is between 40.75 and 43.25.
What is standard deviation?The degree of data dispersion from the mean is indicated by the standard deviation.
A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.
To calculate the confidence interval for the true average number of artists listened by all Spotify clients, we can use the formula:
Confidence interval = sample mean ± (t-value x standard error)
Standard error = 15 / sqrt(400) = 0.75
Next, we need to find the t-value. Since the sample size is 400, we have 399 degrees of freedom.
Using a t-table or a t-distribution calculator with a significance level of 0.10 and 399 degrees of freedom, we find the t-value to be approximately 1.645.
Now, we can plug in the values to get the confidence interval:
Confidence interval = 42 ± (1.645 x 0.75)
Confidence interval = [40.75, 43.25]
Thus, we can state with 90% certainty that between 40.75 and 43.25 artists are actually being listened to on average by all Spotify users.
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What was the first product Apple released and why was it significant?
Answers
The first product that Apple released was the Apple I computer in 1976.
It was significant because it was one of the first personal computers to be sold as a fully assembled circuit board, making it accessible to a wider range of people.
Apple I computer was the first product to bear the Apple logo and laid the foundation for the company's future success in the computer industry.
In the mid-1970s, personal computers were mostly in the form of do-it-yourself kits or unassembled parts that required significant technical expertise to put together.
The Apple I, which was sold as a fully assembled circuit board with a processor, memory, and basic input/output system (BIOS), was one of the first personal computers to be sold in this form.
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Which of the following lines of code declare a variable?
O height = 6;
O int height = 6;
O int height;
O height = height + 5;
Answers
Declare a variable with the value 6 for int height based on the information provided in the question.
What is a variable?A variable in programming is a quantity that can change based on external factors or data that has been supplied to the program. A program normally consists of instructions that instruct the computer what to do and data that it utilizes while running.
Why do programmers use variables?Programmers and coders employ variables to make it easier for them to comprehend, retain, and utilise programmatic data. A variable's name can be used to retrieve the data it stores later in the program once it has been assigned.
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Which of these method implementations would correctly insert an element into an ArrayList before every even index?public void addEven(ArrayList array, E element) { for(int index = 1; index < array.size(); index++) { if(index %2 == 0) { array.add(index, element); index++; } } }
Answers
ArrayList. add() method is used to add an aspect at specific index in Java ArrayList.
Syntax:
Parameters:
Exception: throws IndexOutOfBoundsException which takes place when the index is making an attempt to be accessed which is not there in the allocated memory block. ...
Example:
Implementation
How do you add an issue to an ArrayList?For example, to add factors to the ArrayList , use the add() method:
import java. util. ...
public category Main { public static void main(String[] args) { ArrayList<string> vehicles = new ArrayList<string>(); cars. add("Volvo"); cars. ...
Create an ArrayList to keep numbers (add elements of kind Integer ): import java. util. </string></string>
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Mr. Smith is a renowned gastronomist. As his job needs knowledge of a wide range of cuisines, he tries to remember a dish by its taste as well as its smell. which of the following will best describe the technique used by Mr. Smith to remember various dishes
dual coding
Answers
Mr. Smith uses dual coding to help him remember different dishes. A popular memory technique that can be utilised for a variety of different tasks is dual coding.
According to the cognitive learning principle known as "dual coding," when information is provided in both verbal and visual formats, people are better able to process and retain it. It asserts that integrating visual and verbal information opens up two separate pathways for the processing and encoding of information in the brain, increasing the possibility that the knowledge will be remembered and later retrieved. This method can help students learn difficult material more effectively while also improving their ability to recall information and solve problems. Dual coding theory has been used to inform instructional practises for better learning outcomes in a variety of domains, including education, psychology, and design.
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