What are the three methods that have contracts in the standard interface?

Answers

Answer 1

Answer:

preconditions, postconditions, and class invariants.

Explanation:

While all three share a common basic format — keyword followed by a list of assertion expressions — they appear in different locations


Related Questions

hannes complains that his computer is always giving error messages, the file names and folder names are garbled, and there is an odd noise coming from his computer tower. which hardware device do you suspect is causing the problem?​

Answers

Answer:

It could be the hard disk drive (HDD)

When is a for loop used in a Java Program?

A. When you already know how many times to perform an action.
B. When you want to test how many times to perform an action.
C. When you don't know how many times to perform an action.
D. When you want to define the name of an action.

Answers

Answer:

A

Explanation

Use "for loop" when size/length is pre-defined/know, such as

int[] numbers = new int[]{ 1,2,3,4,5,6,7,8,9,10 };

length : 10

snippet:

numbers.forEach(int num in numbers){

}

// or

for(int i=0; i < numbers.length ; i++){

}

What kind of animation is used in the powerpuff girls show??

Answers

Calarts? Cartoon I don’t really know but that’s all the information that I have

What is a combination of two or more simple machines?

a complicated machine
a compound machine
a compiled machine
a converted machine

Answers

A compound machine is a combination of two or more simple machines.
A compound machine hope this helps

Select all actions you should take to check for mistakes in your formulas.

1. Check that you entered the correct data.
2. Look to see that you used the correct cell names.
3. Recalculate everything using a calculator.
4. Run a formula checker.
5. Make sure you have followed the correct order of operations.
6. Check that you used the correct operations.
7. Estimate the answer and compare to the actual answer.

Answers

Answer:

The correct options is;

Run a formula checker

Explanation:

In order to check if there are mistakes in a formula, the Error Checking dialogue box which is a tool that enables a user to rapidly detect and correct errors in formulas, can be made use of to both simplify, expedite, and streamline the process

The Error Checking dialogue box has the following commands controls;

Help on This Error; The control button brings up the help window in Microsoft Excel

Show Calculation Steps; The control starts the Evaluate Formula dialog box from which the effect of the data input values, operators and result of each step can be seen

Ignore Error; The button allows an error to be ignored

Edit in Formula Bar; Allows for the input into the formula in the Formula Bar which is much easier than editing the formula in the cell

Options; The command allows the user to view the Microsoft Excel dialog box menu

Answer:

Run a formula checker. ✔

Check that you used the correct operations. ✔

Check that you entered the correct data. ✔

Explanation:

Got it right on Edge 2022.

Which computer memory is higher among digital & analog computer​

Answers

A digital computer has a higher memory. Analog is very low and limited.

A positive integer is called a perfect number if it is equal to the sum of all of its positive divisors, excluding itself. For example, 6 is the first perfect number because 6 = 3 + 2 + 1. The next is 28 = 14 + 7 + 4 + 2 + 1. There are four perfect numbers less than 10,000. Write a program to find all these four numbers.

Answers

i = 1

while i < 10001:

   total = 0

   x = 1

   while x < i:

       if i % x == 0:

           total += x

       x+=1

   if total == i:

       print(str(i)+" is a perfect number")

   i += 1

When you run this code, you'll see that 6, 28, 496, and 8128 are all perfect numbers.

Your customer said that the language used in your program was offensive. This is an aspect of
O accuracy
O efficiency
O usability
O propriety

Answers

Answer: USABILITY

Explanation:

Perhaps efficiency

Answer:

Propriety

Explanation:

Right on Edge

When working with Sendmail, what command can be used to test SMTP support?

Answers

Answer:

"HELO" would be the correct choice.

Explanation:

SMTP seems to be the protocol for transferring emails through one messaging service toward the next. HELO seems to be an SMTP command transmitted by someone with an email server that recognizes yourself when you communicate to some other email server to begin the mail transmitting procedure. It is accompanied either by a domain name including its email address that is sent.

Answer:

HELO/EHLO.

Explanation:

Simple Mail Transfer Protocol (SMTP) is a protocol followed while sending an electronic mail or receiving it. It is a TCP/IP protocol (a protocol used to interconnect in communication protocols).

To test Simple Mail Transfer Protocol (SMTP), the HELO/EHLO command is used. There are several other commands in SMTP, which is used to communicate properly.

The HELO command is a type of command in SMTP which is used to test or initiate SMTP communication. HELO/EHLO are the commands which are used to test SMTP communication. They are used interchangebaly.

Thus the correct answer is HELO/EHLO command is used to test SMTP support.

In which step of web design is storyboarding helpful?

Answers

Answer:

Storyboarding is helpful during the planning stage of web design

Date Detection Write a regular expression that can detect dates in the DD/MM/YYYY format. Assume that the days range from 01 to 31 , the months range from 01 to 12 , and the years range from 1000 to 2999. Note that if the day or month is a single digit, it'll have a leading zero. The regular expression doesn't have to detect correct days for each month or for leap years; it will accept nonexistent dates like 31/02/2020 or 31/04/2021. Then store these strings into variables named month, day, and year, and write additional code that can detect if it is a valid date. April, June, September, and November have 30 days, February has 28 days, and the rest of the months have 31 days. February has 29 days in leap years. Leap years are every year evenly divisible by 4 , except for years evenly divisible by 100 , unless the year is also evenly divisible by 400. Note how this calculation makes it impossible to make a reasonably sized regular expression that can detect a valid date

Answers

Answer:

Attached is your code, written in Python.

Which of the following is normally included in the criteria of a design?

Answers

The one that is normally included in the criteria of a design is budget. The correct option is 3.

What is budget?

A budget is an estimate of revenue and expenses for a given period of time that is usually compiled and re-evaluated on a regular basis.

Budgets can be created for an individual, a group of people, a company, a government, or almost anything else that makes and spends money.

Criteria are requirements that the design must meet in order to be successful. Constraints are design limitations.

These may include the materials available, the cost of the materials, the amount of time available to develop the solution, and so on.

Thus, the correct option is 3.

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1. Materials

2. Time

3. Budget

4. Efficiency

i need help with computer science
im on Write Password Evaluator

Answers

Answer: Password Evaluator is designed to examine passwords and tentative passwords to look for dictionary words and patterns that a password cracking tool might exploit. It looks for reversed, rotated, keyboard shifted, truncated, dropped letters, substituted characters and other variations on dictionary words both singly and in many combinations.

Explanation:

Match each vocabulary word to its definition.
desktop
domain
icon
URL
blog
firewall
intranet
open source
wiki
an image that when clicked on will open a computer application, website, or other subject
an online diary
protects network from unauthorized users
the portion of an internet address that refuers to a group
of computers on a. network
the background screen on a computer monitor
an online database of editable webpages
a software code that can be viewed, used, revised for free
a web address
a network for use by a specific group

Answers

Icon — an image that when clicked on will open a computer application, website, or other subject

Blog — an online diary

Firewall — protects network from unauthorized users

Intranet — the portion of an internet address that refuers to a group of computers on a network

Desktop — the background screen on a computer monitor

Wiki — an online database of editable webpages

Open Source — a software code that can be viewed, used, revised for free

URL — a web address

Domain — a network for use by a specific group

Suppose we use an implementation of Kruskal's algorithm that uses a priority queue (implemented as a binary heap) over edges and Weighted Quick-Union with Path Compression. In this question, we explore the runtime analysis of this implementation when given a connected, weighted graph G=(V,E) represented as an adjacency list. For simplicity, assume each call to UNION costs log ∗
V and each call to CONNECTED also costs log ∗
V. Assume that the first V−1 edges considered by the algorithm will be added to the MST. Also, assume that E=O(V). Under these assumptions, use big- O notation to give an asymptotic upper bound on the runtime of this implementation of Kruskal's algorithm. Your final answer should be as simple as possible (if you have a sum of multiple terms, drop any term that asymptotically is smaller than another term), and it should grow as slowly as possible as well. Be sure to show your work.

Answers

The runtime analysis of Kruskal's algorithm with the given implementation can be summarized as follows:

The overall runtime of this implementation of Kruskal's algorithm is O(E log V).

1. The algorithm considers the first V-1 edges to build the Minimum Spanning Tree (MST).

2. The given graph is represented as an adjacency list, which allows efficient access to the edges incident to each vertex.

3. The algorithm uses a priority queue implemented as a binary heap to store and retrieve the edges in increasing order of weight.

4. The binary heap has a logarithmic time complexity for insertion and deletion operations, which are used for adding and removing edges from the priority queue.

5. The algorithm employs the Weighted Quick-Union with Path Compression data structure to keep track of the connected components and determine if adding an edge creates a cycle.

6. The union and connected operations on the disjoint sets also have a logarithmic time complexity due to path compression.

7. Since the number of edges in the graph is O(V), and each edge is processed once, the total number of operations performed by the algorithm is O(E).

8. As each operation on the binary heap and disjoint sets costs log*V, the overall runtime of the algorithm is O(E log V).

The given implementation of Kruskal's algorithm using a priority queue and Weighted Quick-Union with Path Compression has an asymptotic upper bound of O(E log V) in terms of runtime.

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Many massive stars end their life cycles as black holes. Why do astronomers not believe the sun will end its life cycle as a black hole?
(1 point)
O It is much too hot.
O It is not at the center of the solar system.
O It is not a binary star.
O It is not massive enough.

Answers

Answer: It is not massive enough

Explanation: The sun doesn't have enough mass to be a black hole.

A. Fallacy B. Proposition C. Conditional Statement D. Assumption E. Logical Reasoning F. Variable An element of a situation that has the potential to change in value. A B C D E F An element of a situation that is accepted as true without proof. A B C D E F The process of analyzing and evaluating arguments to draw a valid conclusion. A B C D E F A statement that is either true or false. A B C D E F A statement with an if-then structure that is either true or false. A B C D E F An argument based on an error in reasoning.

Answers

Answer:

A,B

Explanation:

its in the question......,....,...

Mary Grossman has been selling cupcakes for the past few years. She keeps meticulous record of every cupcake that she has ever made and sold. She has also kept records of customers’ comments on all her cupcakes. These have been entered into a computerized accounting information system that her accountant refers to as a "data warehouse." Mary is considering rebranding her cupcake business and has asked her accountant to identify the top-selling cupcakes for the past few years. Mary wants her accountant to engage in:______.

Answers

Answer:

Data mining

Explanation:

Based on the information given we were told that she is considering the rebranding of her cupcake business in which she asked her accountant to help her identify her top selling cupcakes for the past few years which means Mary want to make use of the large information recorded into the Data warehouse to improve her business.

Hence we can say that she wants her accountant to engage in DATA MINING.

DATA MINING can be defined as the process of making use of information collected or data collected to help know business lapses for the sole aim of improving the business and to help use the data collected to make goods business choices.

Therefore Mary wants her accountant to engage in DATA MINING

WHAT IS A COMPUTER ????

Answers

A piece of technology

Answer:

A device for storing and processing data, a computer can perform sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks.

what is the purpose of setting up e-mail notifications for users who violate storage quotas?

Answers

Setting up e-mail notifications for users who violate storage quotas serves as a reminder and a warning for the users to manage their storage space usage.

It allows them to take action to reduce the amount of data they are storing, either by deleting unnecessary files or moving them to another location. If the users continue to exceed their storage quota without addressing the issue, they risk having their access restricted or their data deleted.

The notifications also help IT staff to proactively monitor storage usage across the organization and take action to prevent data loss or system performance issues. By receiving alerts when storage quotas are exceeded, IT staff can address the issue before it becomes a bigger problem, such as a system crash or data corruption.

Overall, setting up e-mail notifications for storage quota violations is an important part of maintaining a well-managed and efficient storage environment.

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You need to deploy a small piece of software using a script file. You have a variety of options available to you based on what method you use in writing the script. Which of the following would NOT be an option for file scripting?
A) .bat
B) .ini
C) .sh
D) .py

Answers

A script file must be used to deploy a little piece of software. Depending on the approach you take when composing the script, you have a range of alternatives. Choice (B). Ini is accurate.

Software definition and examples :

In this application, "software" refers to the running scripts, programs, and apps on a device. It can be compared to the variable portion of a computer, whereas the invariable portion is the hardware.

A software device is what?

Software Device refers to any apparatus on or through which software applications and its accompanying visual representations, either with sounds, may be embodied / recorded for use in the Game and later operation, manipulation, or communication to users.

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Sebastian reads an online health news article that summarizes a new
research study on the benefits of leafy green vegetables. Which option best
describes the source Sebastian is reading?

A. Company report
B. Primary source
C. Secondary source
D. Progress report

Answers

Answer:

C) Secondary Source

Explanation:

I took the

Which of the following are characteristics of the Boolean data type? Check all that apply
It holds infinite values.
It uses operators such as AND, OR, and NOT
It holds a TRUE or FALSE value.
It is named after a nineteenth-century mathematician and logician
Help I’m timed !!

Answers

Answer:

It uses operators such as AND, OR, and NOT.

It holds a TRUE or FALSE value.

It is named after a nineteenth-century mathematician and logician

Explanation: Just did it on edg

Answer:

It uses operators such as AND, OR, and NOT.

It holds a TRUE or FALSE value.

It is named after a nineteenth-century mathematician and logician

Explanation:

Got it correct on edge

Write a program to calculate the farthest in each direction that Gracie was located throughout her travels. Add four print statements to the lines of code above that output the following, where the number signs are replaced with the correct values from the correct list:

Answers

Answer:

If you're given a set of coordinates that Gracie has travelled to, you can find the farthest in each direction with something like this (I'll use pseudocode in lieu of a specified language):

left = right = top = bottom = null

for each location traveled{

    if left == null or location.x < left {

         left = location.x

    }

    if right == null or location.x > right {

         right = location.x

    }

    // note that I'm assuming that the vertical position increases going downward

    if top == null or location.y < top {

          top = location.y

    }

    if bottom == null or location.y > bottom {

          bottom = location.y

    }

}

As for the four print statements and other information, insufficient information is provided to complete that.

What is output by the following code? for x in range(7, 16): print(x * 2, end=" ") Group of answer choices 14 16 18 20 22 24 26 28 32 16 18 20 22 24 26 28 32 14 16 18 20 22 24 26 28 30 16 18 20 22 24 26 28 30

Answers

Input:-

\(\tt for\:x\:in\:range(7,16):\)

\(\tt print(x*2,end"")\)

Output:-

\(\tt 14,16,18,22,24,26,28,30,32\)

The loop will start from 7×2=14 to 16×2=32

write any two websites uses to send e-mail​

Answers

Answer:

www(.)gmàil(.)com.

www(.)yahóomail(.)com

Explanation:

The two top most popular websites people use to send e-mail​ are:

1. www(.)gmàil(.)com. This is owned by Góógle giant. While

2. www(.)yahóomail(.)com is owned by Yahóó

Both websites are places, everybody can just register and start sending emails to their loved ones or for official functions such as formal requests, inquiries, etc.

Some Other websites are www(.)outlook(,)com.

Also, anybody can choose to send an email from their website through the script.

An application is getting downloaded, the total size is 52GB. So the speed of the WiFi is like.. 10mb per second, so the question was, how much time would it take to get downloaded? ​

Answers

Size=52GB=52(1024MB)=53248MBSpeed=10MB/s

Time

\(\\ \tt\longmapsto \dfrac{Size}{Speed}\)

\(\\ \tt\longmapsto \dfrac{53248}{10}\)

\(\\ \tt\longmapsto 5324.8s\)

\(\\ \tt\longmapsto 88.74min\)

\(\\ \tt\longmapsto 1h\:28.7min\)

how to look at things you previously applied to on handshake

Answers

Answer:

If you mean what I think you mean, You would want to memorize the handshake. or make signs for it or words. kinda like a dance routine.

Explanation:

2) find and discuss an example of an internet source for reliable science information (again, preferably astronomy-related, but it's ok to branch out a bit if you find a really good one). what makes this source reliable, in your view? what methods can/should be used to verify the quality of a science-related web site?

Answers

what makes this source reliable :

      A trustworthy source is one that offers a thorough, well-reasoned theory, argument, or discussion based on solid evidence. Scholarly, peer-reviewed articles or books authored by researchers for the benefit of students and researchers. Extensive bibliography, original research.

         Wikipedia some entries are reliable, some are not - it's up to you to evaluate. The authors are anonymous, so there's no way to determine their expertise, or the expertise of the Wikipedia editor who oversees the entry. Wikipedia editors will post warnings if they think the entry has weaknesses.  Wikipedia entries tend to be conservative, reflecting traditional views over newer research.

         The books and articles in GIL, the library catalogue, or a UGA Library database have been reviewed by scholarly or professional peers/editors. This process increases their likelihood of being trustworthy, fact-checked sources. On the Internet, you can find information on almost any subject. The big question for anyone doing web research is whether or not that information is reliable, up to date, and unbiased. Books, magazines, and journal and newspaper articles must adhere to stricter quality control standards, and it is usually easy to determine when print material was published, who published it, and whether or not the information is reliable. It's not quite like that with web-based information. Anyone can create a website, and there are usually no standards in place to assess the quality and accuracy of the information. Internet sources may or may not go through a fact-checking or editorial process. You must determine your own dependability. When evaluating a website, six criteria should be used: authority, accuracy, objectivity, currency, coverage, and appearance.

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A trustworthy source is one that offers a thorough, well-reasoned theory, argument, or discussion based on solid evidence

what makes this source reliable : A trustworthy source is one that offers a thorough, well-reasoned theory, argument, or discussion based on solid evidence. Scholarly, peer-reviewed articles or books authored by researchers for the benefit of students and researchers. Extensive bibliography, original research.The books and articles in GIL, the library catalogue, or a UGA Library database have been reviewed by scholarly or professional peers/editors. This process increases their likelihood of being trustworthy, fact-checked sources. On the Internet, you can find information on almost any subject. The big question for anyone doing web research is whether or not that information is reliable, up to date, and unbiased. Books, magazines, and journal and newspaper articles must adhere to stricter quality control standards, and it is usually easy to determine when print material was published, who published it, and whether or not the information is reliable. It's not quite like that with web-based information.Anyone can create a website, and there are usually no standards in place to assess the quality and accuracy of the information. Internet sources may or may not go through a fact-checking or editorial process. You must determine your own dependability. When evaluating a website, six criteria should be used: authority, accuracy, objectivity, currency, coverage, and appearance.

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what is at the top of the stack after the following operations are run? push(4) push(12) pop() push(26)

Answers

20,20,10,10,20 will be at the top of the stack after the given operations are run.

What is stack?

A set of related elements is grouped together logically as a stack. In programming and computer memory management, the phrase is frequently used.

Last in first out (LIFO), a type of data abstraction that is frequently used and is composed of the two main operations push and pop, is the foundation of programming stacks. In contrast to the pop operation, which removes elements from the top position, the push operation adds elements to the stack's bottom position.

The top position is tracked using a variable or header pointer, respectively, in arrays and linked lists, which are used to implement the stack concept in software. For the implementation of stacks, many programming languages have built-in features.

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