For the parser class, it must have some recursive descent.
Create a Parser class (does not derive from anything). It must have a constructor that accepts your collection of Tokens. Create a public parse method (no parameters, returns "Node"). Parse must call expression (it will do more later) and then matchAndRemove() a newLine. You must create some helper methods as matchAndRemove().
Answers
The Parser class is designed to handle parsing based on the provided collection of Tokens. The parse method initiates the parsing process by calling the expression method and ensures that a newline token follows.
public class Parser {
private List<Token> tokens;
public Parser(List<Token> tokens) {
this.tokens = tokens;
}
public Node parse() {
Node expression = expression();
matchAndRemove(TokenType.NEWLINE);
return expression;
}
private Node expression() {
// Recursive descent implementation for parsing expressions
// Additional logic and methods can be added here
}
private void matchAndRemove(TokenType tokenType) {
// Logic to match and remove tokens from the collection
}
}
The provided code demonstrates the implementation of a Parser class in Java. The class accepts a collection of Tokens in its constructor and provides a public parse method that returns a Node. The parse method calls the expression method (which represents the start of the grammar rules) and then uses the matchAndRemove method to ensure that a newline token is present and removed.
The expression method represents the recursive descent implementation for parsing expressions. This method can be further expanded to handle more grammar rules and sub-expressions.
The match And Remove method is a helper method that can be implemented to compare the token type with the expected token type and remove the matched token from the collection if it matches.
The Parser class is designed to handle parsing based on the provided collection of Tokens. The parse method initiates the parsing process by calling the expression method and ensures that a newline token follows. The Parser class can be further enhanced by adding more methods and logic to handle different grammar rules and construct the appropriate syntax tree.
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Related Questions
The combination of telephone lines and the closed switches that connect them to each other is called a _____.
Answers
Answer:
circuit
Explanation:
this is kind of related to the "electrical circuits" you may know about. they have switches- but when it comes to infrastructure, there are also telephone lines that allow for data communication.
What is the difference
difference between
Open
and recent
command?
Answers
large carriers like sprint, at&t, and xo communications exchange internet traffic freely at physical locations called ________.
Answers
The answer is Internet Exchange
A charity is keeping track of donations for one month. The director would like to create a report that groups data by week. Each group will contain donations collected on each day of the week. Which type of calculated figure should the director use to display a cumulative total beneath each group?
running sum
sum
grand total
percentage
Answers
The calculated figure that the director should use to display a cumulative total beneath each group is option A: "running sum".
Which type of calculated figure is this?A "running sum" is used by the director to display cumulative totals beneath each group. It accumulates the values of a field over time or across a grouping.
Director groups donations weekly and displays total for each day using running sum to calculate and add up amount as days progress. Director groups donations weekly by creating a running sum field that adds daily totals until end of the week. Cumulative totals for each day of the week displayed in report.
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Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!????????????????
Briefly explain to me how and why teams are important. Has there ever been a successful person who had no help at all? A person who has ever taught themselves everything without the help of others. If not, explain why it is impossible but if so, explain why it is impossible (10-14 complete sentences)
Answers
Answer:
teams are important because, you can get other people ideas to improve yours. There have been people who have been successful but, could have done better. No one has ever taught themselves because if you do something wrong then you wont know. Teams can help you fix things you have done wrong. They also can help with big projects taking up less time for you and other people. With the help of a team you can accomplish big feats in a short time frame.
Explanation:
Modern life is not possible if computer stops working? Give your opinion
Answers
Answer:
Yes, Because without technology no one will be able to make modern life. And without technology latest devices and discoveries won't be found.
help pls lol..
image below
Answers
Answer:
B or C I don't know
so I guessing
Answer:
I think the answer is A
Explanation:
until the lock is released, the CV cannot return from...
Answers
Until the lock is released, the CV (Condition Variable) cannot return from the wait() call.
When a thread calls wait() on a condition variable, it releases the associated lock and waits for a signal or broadcast on that condition variable. Once a signal or broadcast is received, the thread wakes up and re-acquires the lock before returning from the wait() call. This ensures that the thread has the necessary lock before proceeding with its work.
If the lock is not released before calling wait() or not re-acquired after waking up from wait(), it can lead to deadlocks or race conditions. It is important to properly use locks and condition variables to ensure thread synchronization and avoid potential issues. Proper use of locks and condition variables can help prevent issues like deadlock and race conditions in multi-threaded programs.
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30 POINTS! PLEASE ANSWER QUICK!!!
When coding in html, do you put \(<\)html\(>\) or \(<\)!DOCTYPE html\(>\) first?
Does it matter?
Answers
Answer:
your doctype comes first.
Explanation:
The first thing you should make sure to have in any HTML document you create is a "document type definition (DTD)" declaration.
it defines what elements and attributes are allowed to be used in a certain flavor of HTML
[ANSWER = BRAINLIEST] How to mark an answer as brainliest?
Answers
Answer:
once your question is answered you get an option available on the bottom of the answer
see attached
and you click on Mark as brainliest
![[ANSWER = BRAINLIEST] How to mark an answer as brainliest?](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/KowYTLAVsttFeC38dZCUdAlWgM7YWRkM.png)
Answer:
You are able mark a question Brainliest when there are 2 existing answers, or if 1 answer has existed for a while.
Hope this helps! Now get in there and mark me Brainliest! :v
LOL...s o r r y
Deon is setting up a three point lighting system to light an object in his scene which of the following lights is usually the largest and points in a direction opposite the main light
Answers
Answer:
The fill light.
Explanation:
Which page layout is most commonly used for a website with a large navigation menu ?
Answers
Cartographer website navigation method consists of a single web page containing a list of hyperlinks representing all the pages in the website.
A cartographer is "a person who creates or produces maps," according to the Oxford Dictionary of English app. According to the online Merriam-Webster definition, a cartographer is "one who produces maps." Additionally, a cartographer is defined as "someone who makes or draws maps" in the online version of the Cambridge Dictionary.
The creation of maps, graphs, and other graphics, as well as the maintenance of their standardization for various project and technical reports.
Performs geographic analysis on the data after creating, recording, and/or digitally extracting geospatial or statistical data from a number of sources.
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User
Application Software
Operating System
Hardware
Assignment #1
•Explain the meaning of this graphics organizer base on what you have learned from this lesson.
• Is an "app" same in meaning with "application"?
Answers
This graphics organizer base talks about Software and how it is divided into two groups such as the operating systems and application software.
What are Software?Software are said to be often shared into two categories such as:
The operating systems The application software.Note that the Operating systems functions by helping the hardware and produce a kind of interface between the hardware and its user while the Application software is said to be a stage of a programs that help the user to do anything meaningful just as seen in the diagram.
Conclusively, The word "app" has the in meaning with "application". It is known to be the short form of application.
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which of the following are good reasons to write tests that use your bag adt before the implementation is done? group of answer choices it helps confirm the design it helps check the suitability of the specification it helps check your understanding of the specification all of the abo
Answers
d) All of the above are good reasons to write tests for an ADT before its implementation is done. Writing tests before the implementation helps confirm the design.
It also helps check the suitability of the specification by identifying any limitations or constraints that may impact the functionality of the ADT. Additionally, writing tests before implementation helps check the developer's understanding of the specification by highlighting any misunderstandings or incorrect interpretations of the requirements. By writing tests early on in the development process, developers can catch potential problems before they become more difficult and time-consuming to fix. This leads to a more efficient development process and helps ensure that the final product meets the needs of its users.
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what is computer engineering
Answers
Answer:
Computer Engineering is the discipline embodying science and technology in the design, building, implementing, and maintenance of modern computer systems and computer-controlled equipment software, and hardware components.
Explanation:
Computing engineering is an engineering branch that incorporates several computer sciences and engineering industries that are necessary for the development of computer equipment and software. In general, computer engineers are educated not only in software engineering or electronic engineering but also in software design and software integration. Computer engineers participate in numerous computer software and hardware aspects from the conception of different microcontrollers, micro-producers, personal computers, and supercomputers to the design of circuits.
Computer engineers are usually involved in the writing of software and firmware for embedded microcontrollers, the design of VLSI chips, analog sensors, the construction of mixed-signal systems, and the design of operating systems. The robotic research process is also suitable for the use of digital systems to control and monitor electrical systems, such as drives, communications, and sensors. Computer engineers are also suitable.
In many universities, informatics students are allowed to choose areas of in-depth study in their junior and senior levels, as the full size of knowledge used in computer design and use is beyond the scope of a bachelor's degree. Other institutions may require students to complete one or two years of general engineering before declaring the focus on computer technology
Type the correct answer in the box.
Spell all words correctly.
Jenny wants to create an animated short video to add to her website.
Which software will she use to
create this animated video?
Jenny should use(blank)
to create this animated video.
Answers
I advise deciding between Adobe Spark and Premiere Pro if you're seeking a video editing program. Even if you're not a designer, Adobe Spark is a reasonably straightforward program.
What program is utilized to produce animated videos for advertising campaigns?One of the best programs for making animated motion design movies for your marketing is Adobe Illustrator. It is an all-in-one video editing program that was made specifically to produce animated videos utilizing motion as the primary means of animation.
Which of the following free cartooning programs may you use or share with your students?Pencil2D. Best for Professional Tools and Easy Learning. A fantastic professional tool for creating 2D hand-drawn animations is Pencil2D. Due to its straightforward features and options, it is also the best free animation software that everyone can use.
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Which of these can expose a computer to a virus? Check all that apply.
downloads
e-mails
social media
video chats
websites
Answers
Answer:
downloads,emails,and websites
Explanation:
Maintain a Database Security (Inference Detection Algorithm)
Consider a database containing personnel information, including names, addresses, and salaries of employees. Individually, the name, address, and salary information is available to a subordinate role, such as Clerk, but the association of names and salaries is restricted to a superior role, such as Administrator.
1. With this information, how could you construct your database and tables? Design your database and draw a database schema first.
2. Suppose that administrators wants to add a new attribute, employee start date, which is not sensitive. Where would it be? Consider not comprimising the relationship between employee and salary. Draw your new schema
Answers
To maintain database security and prevent unauthorized access to sensitive information, we can use an inference detection algorithm. This algorithm monitors queries and user activity to detect any attempts to infer sensitive information from available data.
1. To maintain database security and protect the sensitive association between names and salaries, you can construct your database using two separate tables. The first table, called 'Employee_Info', will store general information about employees, such as their names and addresses. The second table, named 'Salary_Info', will store salary data. Both tables will have a unique Employee_ID as the primary key to link the records without directly associating names and salaries.
Database schema:
Employee_Info
- Employee_ID (Primary Key)
- Name
- Address
Salary_Info
- Employee_ID (Primary Key)
- Salary
2. To add the new attribute 'employee start date' without compromising the relationship between employee and salary, you can include this attribute in the 'Employee_Info' table, since it is not sensitive information. The updated schema would be as follows:
Updated Database schema:
Employee_Info
- Employee_ID (Primary Key)
- Name
- Address
- Start_Date
Salary_Info
- Employee_ID (Primary Key)
- Salary
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which of the following is an example of a boolean operator
A.
B. SEO
C. HTML
D. BUT
Answers
The option that is an example of a boolean operator is D. BUT
What is boolean operator?A boolean operator is a logical operator that evaluates an expression and returns a boolean value (either true or false) based on the conditions specified in the expression. There are three main boolean operators:
AND operator (&&): It returns true if both the operands are true, otherwise it returns false.
OR operator (||): It returns true if either of the operands is true, otherwise it returns false.
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which of the following is an example of a boolean operator
A.< TITLE
B. SEO
C. HTML
D. BUT
satellite communication (more commonly called s-com) is the process of exchanging electronic messages between individuals over a network—usually the internet.
Answers
Satellite communication (more commonly called s-com) is the process of exchanging electronic messages between individuals over a network—usually the internet: False.
What is an e-mail?An e-mail is an abbreviation for electronic mail and it can be defined as a software application (program) that is designed and developed to enable users exchange (send and receive) both texts and multimedia messages (electronic messages) over the Internet.
In this context, we can reasonably infer and logically deduce that electronic mail more commonly referred to as e-mail rather than satellite communication involves the exchange of electronic messages between individuals over the Internet.
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Complete Question:
Satellite communication (more commonly called s-com) is the process of exchanging electronic messages between individuals over a network—usually the internet. True or False?
what was tari's total standard machine-hours allowed for last year's output?
Answers
Tari's total standard machine-hours allowed for last year's output was not provided in the question. Therefore, I cannot give a specific number for the total standard machine-hours allowed. Standard machine-hours allowed refers to the number of hours allocated for a specific task or production process based on predetermined standards.
It takes into account factors such as machine capacity, labor requirements, and materials used. Without knowing the specifics of Tari's production process and standards, it is impossible to determine the exact number of standard machine-hours allowed for last year's output. To determine the total standard machine-hours allowed for last year's output, we would need to know the following information.
Tari's production process: What is the process for creating the output? This will help determine how many machine-hours are required to complete the task. Machine capacity: How many machines are available and what is their capacity? This will help determine the number of hours that can be allocated to each machine. Labor requirements: How many workers are needed to operate the machines and perform other tasks? This will help determine how many hours of labor are required. Materials used: What materials are used in the production process? This will help determine the amount of time required to process and handle the materials. Once we have this information, we can calculate the total standard machine-hours allowed for last year's output. However, since this information was not provided in the question, we cannot give a specific answer. To answer your question regarding Tari's total standard machine-hours allowed for last year's output, I will need some more information. Specifically, the standard machine-hours per unit and the total number of units produced last year. Once you provide that information, I can help you calculate the total standard machine-hours allowed.
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g write the code that would support overload for the * operator that will allow scalar multiplication, i.e. a double times a point.
Answers
Answer:
Here is one possible way to implement overload for the * operator that will allow scalar multiplication:
struct Vec3 {
float x, y, z;
Vec3 operator*(float scalar) const {
return Vec3{x * scalar, y * scalar, z * scalar};
}
};
This code defines a Vec3 struct that represents a three-dimensional vector, and it overloads the * operator to perform scalar multiplication. The * operator takes a float value as its right-hand operand and returns a new Vec3 object that is the result of scaling the original vector by the given scalar value.
Classify the following skills: communication, creativity, and independence.
Hard skills
Interpersonal skills
People skills
Soft skills
Answers
Answer:
Communication, creativity, and independence are people skill
Explanation:
Soft skills depict the quality of a person and classify his/her personality trait or habit.
Communication - Interpersonal skill
Interpersonal skill allows one to interact and communicate with others effortlessly.
Both soft skill and interpersonal skill comes under the umbrella term i.e people skill.
Hence, communication, creativity, and independence are people skill
Answer:
It's not people skills I got it wrong on my test
Explanation:
PLEASE HELP ASAP!
Create a form with a basic drop-down list with three items. The second item should be initially chosen by default.
Answers
which two commands would return you to the privileged exec prompt regardless of the configuration mode you are in? (choose two.)
Answers
The two commands that would return you to the privileged exec prompt regardless of the configuration mode you are "exit" and "end"
exit: The exit command is used to exit the current configuration mode or sub-mode and return to the previous mode. If you are in the privileged exec mode, issuing the exit command will have no effect and you will remain in the same mode.
end: The end command is used to exit the current configuration mode or sub-mode and return directly to the privileged exec mode. It bypasses any intermediate modes and takes you directly to the top-level mode. So, regardless of the configuration mode you are in, using the end command will always return you to the privileged exec prompt.
1. Cisco devices, such as routers and switches, have different command modes for different tasks. The two main modes are the user exec mode (represented by a ">" prompt) and the privileged exec mode (represented by a "#" prompt). Within the privileged exec mode, there are various configuration modes for different configuration tasks, such as global configuration mode, interface configuration mode, etc.
2. When you are in a configuration mode, such as global configuration mode or interface configuration mode, using the exit command will return you to the previous mode. However, if you are already in the privileged exec mode, the exit command will have no effect.
On the other hand, the end command is specifically designed to exit from any configuration mode and return directly to the privileged exec mode, regardless of the current configuration mode. It is a convenient way to quickly return to the privileged exec prompt without having to issue multiple exit commands to navigate through multiple configuration modes.
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Which of the following is a good way to find a research topic
A. Personal Experience
B. Getting an idea from an advisor
C. Looking for the next step in the research process
D. All of the above
I need the answer quickly giving brainliest to the first person who answers
Answers
Answer:
Im bored wanna talk?
Explanation:
Let the sign of q2 be changed from positive to negative. At which position can the point charge q be placed now so that the net electrostatic force on it is zero?.
Answers
The point charge q can now be placed at the midpoint between q1 and q2 so that the network connection electrostatic force on it is zero.
When the sign of q2 is changed from positive to negative, the direction of the electrostatic force exerted on q2 gets reversed. At this point, the net electrostatic force on q will no longer be zero. To make the net electrostatic force on q zero, q must be placed at the midpoint between q1 and q2. This is because when q is placed at the midpoint, the force exerted by q1 and q2 will cancel each other out and the net force on q will be zero. Therefore, the point charge q can now be placed at the midpoint between q1 and q2 so that the net electrostatic force on it is zero.
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What does it mean to “declare a variable”?
a) Create a Variable
b) Use a Variable
c) Share a Variable
d) Modify a Variable
Answers
Answer:
A
Explanation:
Match the example with the type of collection.
{'casa': 'house'}
[3, 5]
(3, 5, 'dog')
Answers
Answer: First is a dictionary, second is a list, and third is a tuple
Explanation:
Why is online help important? Select all that apply.
Online help is available 24/7 with your Internet connection
Online help often includes FAQs that cover a wide range of topics.
Some sites also provide reports that include detailed analysis of and solutions to issues that concern
users.
You might meet someone who will become a friend.
DONE
Answers
Answer:
def the first one but id say the second is pretty important too
Explanation:
Answer:
A B C
Explanation: