Implement a class named BankAccount. Every bank account has a starting balance of $0.00. The class should implement methods to accept deposits and make withdrawals. __init__(self): Sets the balance to 0. deposit(self, amount): Deposits money. Return True if transaction is successful. Return False if amount is less than 0 and ignore the transaction. widthdraw(self, amount): Withdraws money. Return True if transaction is successful. Return False if amount is more than the balance and ignore the transaction.
Answers
The BankAccount class implementation in Python 3.8 is found in the attached image
The deposit method uses an if statement to check if the amount to be deposited is negative. If so, it does nothing, but returns False signifying that the transaction failed.
However, if the test finds out that the amount to deposit is positive or zero, the deposit method increments the balance, then returns True, signifying a successful transaction.
The withdraw method is similar, but this time, it tests if the amount to be withdrawn is greater than the available balance. If so, it ignores the transaction, and returns False.
If the withdrawal amount is less or equal to the available balance, the withdraw method decrements the available balance, then returns True, signifying a successful transaction.
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Related Questions
You are given an array of integers. Your task is to create pairs of them, such that every created pair has the same sum. This sum is not specified, but the number of created pairs should be the maximum possible. Each array element may belong to one pair only.
Write a function
class Solution public int
solution (int[] A); }
that, given an array A consisting of N integers, returns the maximum possible number of pairs with the same sum.
Examples:
1. Given A = [1, 9, 8, 100, 2], the function should return 2. The pairs are (A[0]. A[1]) and (A[2], A[4]); the sum of each pair is 10.
2. Given A = [2, 2, 2, 3], the function should return 1. Although, for instance, A[0]+A[1] = A[0]+A[2], the pairs (A[0], A[1]) and (A[0], A[2]) cannot exist at the same time, because they both contain a common element, A[0].
Answers
def solution(nums):
# form a dictionary which will store
# the possible pair's sum as key and the indexs used for the sum
sumAndpair = {}
# for every element in list nums
for i in range(len(nums)):
# iterate on all the element to the right of current element
for j in range(i+1,len(nums)):
# calculate the sum of current 2 elements
sum = nums[i] + nums[j]
# if the sum is already in the dictionay
if sum in sumAndpair:
# check if the current index have already been used
# if yes, then continue to next iteration
# this will make sure that same number have not been used more than once
if i in sumAndpair[sum] or j in sumAndpair[sum]:
continue
# if no, then append the current i and j to the value of current sum
else:
sumAndpair[sum].append(i)
sumAndpair[sum].append(j)
# if the current sum is not in the dictionary
# add the sum as key with a list of index used
else:
sumAndpair[sum] = [i, j]
# copmpute the maximum possible number of pairs with the same sum
# which will be the maximum length value out of all the possible sum
# this maximum length will be divided by 2, since a pair of i, j contrinute to one sum
maxLength = 0
for key, value in sumAndpair.items():
if maxLength
What is it called when a unique letter is assigned to a shared drive
Answers
Answer:
Assigning a drive letter to a network drive is called mapping the drive, or linking the drive, by network nerds.
Explanation:
Consider our authentication protocol 4.0, in which Alice authenticates herself to Bob, which we saw works well (i.e., we found no flaws in it.). Now suppose that at the same time that Alice authenticates herself to Bob, Bob must authenticate himself to Alice. Give a scenario by which Trudy, pretending to be Alice, can now authenticate herself to Bob as Alice.
Answers
The communication is done between Bob and Alice only in whom they share a secret key KAB with each other. The Trudy is an intruder who wants to get the information that is being communicated between Alice and Bob. To do so, Trudy wants Bob to initiate the communication by authenticating herself her Alice. Thus, Trudy waits for the Bob to start in-order to make the Bob authenticate himself.
Here are the steps how the communication is done between the Bob and Trudy:
Step 1: Bob starts the communication by himself to other side and waits for the reply.
Step 2: Trudy starts to disguise as Alice herself and authenticate herself to Bob.
Step 3: After looking at the reply, Bob sends the nonce key to Trudy. At this step, still Trudy does not know the KAB(R) in-order to reply to Bob.
Step 4: At this point Trudy response to the step-1 while Bob still continuing to authentication. Trudy picks the nonce for the Bob to encrypt the message with the Bob sent nonce in the Step-3.
Step 5: Now Bob completes his own authentication to himself on the other side of encrypting the nonce he sent at step 4. Where, Trudy gets the nonce key KAB( R).
Step 6: Now, Trudy completes her authentication in responding to R that is sent by Bob in step 3. At this point, Trudy has responded properly, so Bob thinks that he is communicating with Alice(Trudy).
The actual scenario with respect to above steps, the communication is done as follows:
Bob: “I am Bob”
Trudy: “I am Alice”
Bob: “R”
Trudy: “R”
Bob: “KAB (R )” – Bob completes his authentication.
Trudy: Get the KAB (R ) – Trudy complete her authentication.
Thus, the communication is started between the Bob and Trudy instead of Bob and Alice according to protocol 4.0.
• R7.9 Write enhanced for loops for the following tasks.
a. Printing all elements of an array in a single row, separated by spaces.
b. Computing the maximum of all elements in an array.
2. Counting how many elements in an array are negative.
Answers
Answer:
a is the correct answer
Explanation:
correct me if I'm wrong hope it's help thanks
Which of the following is NOT an arithmetic operator?
Answers
Considering the available options, the choice that is NOT an arithmetic operator is "]."
What is Arithmetic Operator?Arithmetic Operator is the term used in computer science to describe the mathematical function that takes two operands while making calculations.
Arithmetic Operators are generally used for arithmetic and sequential calculation.
Major Arithmetic Operators + (addition), - (subtraction), * (multiplication), / (division), % (modulo).++ Autoincrement−− AutodecrementHence, in this case, it is concluded that the correct answer is "]."
The available options are:
a.+
b.-
c. *
d. ]
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Buddys machine shop has a kiosk computer located in the lobby for customers to use. The kiosk computer has recently been updated to Windows 10 from Windows 7 and is not part of a domain. The local computer policy created for Windows 7 has been applied to Windows 10. This policy severely restricts the use of the computer, so that customers can only use the web browser.
Occasionally, an administrator needs to sign in to the kiosk computer to perform maintenance and update software. However, this is awkward because the administrator needs to disable settings in local policy be performing any task. Then, when the tasks are complete, the administrator needs to re-enable the settings in the local policy. Explain how this system can be improved upon.
Answers
User Configuration
Administrative Templates
Start Menu and Taskbar
Change Start Menu power button (enabled) - set to "Lock" (I know this sounds weird, but Windows 7 won't completely disable Logoff if the Start Menu power button is defaulting to the Logoff action).
Remove Logoff on the Start Menu (enabled)
Remove and prevent access to the Shut Down, Restart, Sleep and Hibernate commands (enabled)
System
Ctrl+Alt+Del Options
Remove Lock Computer (enabled)
Remove Logoff (enabled)
Computer Configuration
Administrative Templates
System
Logon
Hide entry points for Fast User Switching (enabled)
For Windows PCs not in a Domain Environment
If your PC's are not in an Active Directory domain, then you'll need to make the below changes manually at each Kiosk PC. Note that you may be able to automate the changes via the use of operating system imaging tools and local mandatory user profiles - leave a comment below if you have interest in those steps.
Login at each Kiosk PC using a user account that will ultimately be used to run the Kiosk desktop applications.
Launch the Windows Registry Editor (REGEDIT.EXE) and make the following changes to the registry (note that you may need to temporarily grant local Administrative access to your Kiosk user account to do this if it is already in a very locked down state)
HKEY_CURRENT_USER
SOFTWARE
Microsoft
Windows
CurrentVersion
Policies
Explorer
13) You notice that the row labels in your spreadsheet are 1, 2, 3, 8, 9.
Row labels 4 through 7 are missing. What could cause this?
Answers
Possible reasons for missing out row 4 to 7 are as follows,
Chance of rows from 4 to 7 contain incorrect/ non formatted data.Chance of rows from 4 to 7 are in hidden state.Chance of rows from 4 to 7 are assigned to some other user which does not belongs to your current user.Chance of rows from 4 to 7 were deleted from the sheet.These are all the possible reasons for missing of row 4 to 7.
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Yvonne is matting a series of photos as an anniversary gift for her parents. She hopes that they will cherish this gift for years to come but is concerned because she can’t afford the really nice mat board. What is Yvonne MOST LIKELY worried about?
A.
that the mat will turn black
B.
that the mat will take over the picture
C.
that the mat will disintegrate
D.
that the mat will discolor and deteriorate
Answers
Answer:
That the mat will discolor and deteriorate
Explanation:
D
Yvonne will most likely worry that the mat will discolor and deteriorate. The correct option is D.
What is matting in photos?Matting is a decorative border that surrounds the artwork. It is typically built of mat board, a type of board designed specifically for this purpose. After cutting the mat board to size, one or more holes (entries) are cut in the mat board to act as windows for displaying art.
Matting is the technique of separating an image's foreground and background components. Typically, the photos are of a frame or a video file. It adds a decorative edge to the print and a mechanism for hanging the photo.
Matting involves using a front or window mat to separate the image from the frame's glass and to give an extra border around the photo.
Therefore, the correct option is D. that the mat will discolor and deteriorate.
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write a short paragraph (three to four sentences) that explains how it works for computers and internet communications in relation to cybersecurity.
Answers
Answer:
Public and private keys form the basis for public key cryptography, also known as asymmetric cryptography. In public key cryptography, every public key corresponds to only one private key. Together, they are used to encrypt and decrypt messages. If you encode a message using a person’s public key, they can decode it using their matching private key.
Explanation:
Change up the wording.
Alexis plans to stop trading once she lose 5% of her account balance, her account balance is $215.00. How much money is she willing to lose ?
Answers
Answer:
She's willing to lose $10.75.
Explanation:
$215.00 * .05 = answer
or
$215.00 * .95 = x
$215.00 - x = answer
write a code for a program in which the parent had to ask from user that how many child user wants to create and then it should fork that many Childs?
Answers
Answer:
//same program different code
#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
int main()
{
int pid;
pid=fork();
if(pid<0)
{
printf("\n Error ");
exit(1);
}
else if(pid==0)
{
printf("\n Hello I am the child process ");
printf("\n My pid is %d ",getpid());
exit(0);
}
else
{
printf("\n Hello I am the parent process ");
printf("\n My actual pid is %d \n ",getpid());
exit(1);
}
}
Explanation:
Following are the program to the given question:
Program Explanation:
Include header file.Defining the main method.Defining an integer variable "n, i", after defining this use "n" to the input value.In the next step, a loop is declared that uses if block that checks fork value equal to 0, in which it calls the sleep method and prints its value.At the last, it calls the wait method.Program:
#include<stdio.h>//header file
#include<sys/types.h>
#include<sys/wait.h>
#include<unistd.h>
int main()//defining the main method
{
int n,i;//defining an integer variable
printf("Enter the number of child to be created:"); //print message
scanf("%d", &n);//input value in n
for(i=0;i<n;i++) // defining a loop that use if block with the frok method to print value
{
if(fork() == 0)//use if that check fork method value equal to 0
{
sleep(3);//calling sleep method
printf("[child] pid %d from [parent] pid %d\n",getpid(),getppid());//print message
}
}
wait(NULL);//calling wait method
return 0;
}
Output:
Please find the attached file.
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Filtering is a function of _____.
Answers
Explanation:
Filtering is a function of switches.
What is important to know from a software development perspective about this topic and its relationship with traditional operating systems? How does developing the software for each platform differ? How is it similar?
Answers
What is important to know from a software development perspective about this topic and its relationship with traditional operating systems? How does ...
Write a description about this picture
Answers
Answer:
A cube which has holes in it, represented by circles and it has an oval/sphere on top of the figure
Explanation:
Answer: A Square with circular holes and a tall round circle/torus sticking out of the top circle hole in all there are 6 circular holes 1 square and 1 tall round circle/torus
Explanation:
Im sorry if this isnt what you meant if it isnt i can try again
List the four types of computer cases
Answers
Answer:
full-tower, mid-tower, mini-tower, and SFF(Small Factor Form).
I hope it helps.
Where is the option to set Conditional Formatting rules found?
O Insert tab in the Formatting group
O Page Layout tab in the Styles group
O Home tab in the Styles group
Formulas tab in the Formatting group
Answers
Answer:
C
Explanation:
the person above me is correct, you should mark them brainliest
in excel If you have a lengthy text, adding a __________ can change the cell’s format to ________. *
Answers
Based on Microsoft Excel analysis, in excel If you have a lengthy text, adding a Wrap Text can change the cell’s format to high height.
What is Microsoft Excel?Microsoft Excel is one of the software applications in Microsoft Office. It has cells of rows and columns in which users can easily put facts and figures to carry out tasks.
The function of Wrap TextWrap Text is applied in Microsoft Excel to show the cell contents on many lines instead of a single long line.
Hence, in this case, it is concluded that the correct answer is "Wrap Text and High Height."
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A user is following the instructions of a help desk technician and is attempting to launch System File Checker from the command-line interface. Each time the user types sfc /scannow and presses Enter, the utility fails to run, and an error appears stating the command must be run using an elevated command prompt.
Answers
During boom times, which of the
following is true?
A. less tax revenue is being paid by businesses
B. less tax revenue is being paid by consumers
C. more tax revenue is being collected from businesses
and consumers
D. tax increases are causing unemployment and job
loss
Answers
During boom times, the option that was true is that less tax revenue is being paid by businesses.
How does the taxation system can boom a economy?The use of taxation is one that affect incentives, as taxes can influence supply and demand factors.
Note that by lowering marginal tax rates on wages and salaries, can bring about the zeal for people to work more and earn more.
Therefore, During boom times, the option that was true is that less tax revenue is being paid by businesses.
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how to count binary ? Help Better understand this question
Answers
Explanation:
For each row in the picture, you have to switch on some of the bits to create the number on the left.
Each bit has a value, a "weight" so to speak. By switching on the bit, you add that weight to the sum.
These "weights" are shown at the top row.
So to create 4, it's easy, you just switch on the '4' bit.
Same for 128, only one bit has to be switched on.
40 is a bit more involved, now you have to switch on 32 and 8, since 32+8 is 40.
For every number, there is exactly one combination of switched on bits to create that number. In the case of 40, the binary representation is:
00101000.
Consider the following declaration:
String s = "cat";
Which of the following statements assigns the number of characters in s to k?
A. int k = s.length;
B. int k = s.length();
C. int k = s.size;
D. int k = s.size();
Consider the following declarations:
String s1 = "apple";
String s2 = "apple";
What is the result of s1.compareTo(s2)?
A. true
B. false
C. 0
D. 1
Consider the following declarations:
String s1 = "apple";
String s2 = "APPLE";
Which of the following expressions is true?
A. s1.equals(s2) && s1.equalsIgnoreCase(s2)
B. !s1.equals(s2) && s1.equalsIgnoreCase(s2)
C. s1.equals(s2) && !s1.equalsIgnoreCase(s2)
D. !s1.equals(s2) && !s1.equalsIgnoreCase(s2)
Answers
Answer:
B, C, B
Explanation:
According to my understanding of these questions, these are in Java.
For the first one, there is a built in function called .length() for a string, so it's answer B.
For the second one, this should come out as C, 0 since compareTo compares the ascii values of the characters.
The third one's answer should be B. s1.equals(s2) for characters that are caps and not caps comes out with false, so ! would negate it. s1.equalsIgnoreCase(s2) would come out as true, ignoring the cases of APPLE.
A hybrid data mart ________ data from a data warehouse as well as other data collection systems. It incorporates a top-down approach, end-user inputs, and enterprise-level integration. g
Answers
Answer:
Hybrid Data Marts
A hybrid data mart allows you to combine input from sources other than a data warehouse. This could be useful for many situations, especially when you need ad hoc integration, such as after a new group or product is added to the organization.
We can use a hybrid data mart to mix data from sources other than a data warehouse, and the further discussion can be defined as follows:
Hybrid Data Marts:It could be useful in a variety of scenarios, particularly when informal integration is required, like when a new group or product is added to the organization.
We can use a hybrid data mart to combine data from various sources other than a data warehouse. It's a structure or access pattern that retrieves client-specific data in data warehouse environments. This data mart is a subset of a data warehouse that is typically focused on a particular business line or functional area.Therefore, the final answer is "separates".
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what is office course
how to learn office course
Answers
Answer:
It includes Word, to create, polish, and share documents; Excel, to analyze and visualize data; PowerPoint, to create, collaborate, and effectively present ideas; OneNote, to organize ideas into a digital notebook; Outlook, to organize email, coordinate schedules, and stay up to date with contacts; Access, to create .Hope this helps you XD ✌️You have just purchased a brand new Windows 8 computer. What should you do right away with the Administrator account?
Answers
Enable EFS for the account
how many MB are there in 1000 KB?
Answers
Answer:
1 megabyte
Explanation:
Write a program that generates 100 random numbers and keeps a count of how many of those random numbers are even and how many of them are odd.
Answers
Answer:
import random
numbers = []
even = 0
odd = 0
for i in range(100):
numbers.append(random.randint(1, 200))
for i in range(100):
if numbers[i] % 2 == 0:
even += 1
else:
odd += 1
print("Even:", even)
print("Odd:", odd)
Explanation:
Gg ez.
What was the main limitation of computer networking that the invention of the Robert website of the 1990s
Answers
Answer:
The TCP/IP protocol could only be used in universities, governments, and businesses. People around the world could not send data to one another.
I have a D in one of my majors, I got a lot of 70s and I'm failing music. im in middle school. Will I be held back? Please answer this
Answers
Answer:
probably sorry it will be okay
In the context of the data administration component of a database management system (DBMS), the acronym CRUD stands for _____.
Answers
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete.
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete. It is the four basic functions of persistent storage.
CRUD operations are foundation operations every database developer and administrator needs to understand.
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"""
Multiply.py - This program prints the numbers 0 through 10 along
with these values multiplied by 2 and by 10.
Input: None.
Output: Prints the numbers 0 through 10 along with their values multiplied by
2 and by 10.
"""
head1 = "Number: "
head2 = "Multiplied by 2: "
head3 = "Multiplied by 10: "
NUM_LOOPS = 10 # Constant used to control loop.
print("0 through 10 multiplied by 2 and by 10" + "\n")
# Initialize loop control variable.
# Write your counter controlled while loop here
# Multiply by 10.
# Multiply by 2.
print(head1 + str(numberCounter))
print(head2 + str(byTwo))
print(head3 + str(byTen))
# Next number.
Summary
In this lab, you use a counter-controlled while loop in a Python program. When completed, the program should print the numbers 0 through 10, along with their values multiplied by 2 and by 10. The data file contains the necessary variable declarations and output statements.
Instructions
Make sure the file Multiply.py is selected and opened.
Write a counter-controlled while loop that uses the loop control variable (numberCounter) to take on the values 0 through 10.
In the body of the loop, multiply the value of the loop control variable by 2 and by 10. Remember to change the value of the loop control variable in the body of the loop.
Execute the program by clicking the "Run Code" button at the bottom of the screen.
Answers
head1 = "Number: "
head2 = "Multiplied by 2: "
head3 = "Multiplied by 10: "
NUM_LOOPS = 10 # Constant used to control loop.
print("0 through 10 multiplied by 2 and by 10" + "\n")
# Initialize loop control variable.
# Write your counter controlled while loop here
# Multiply by 10.
# Multiply by 2.
x = 0
while(x<11):
print(head1 + str(x))
print(head2 + str(x*2))
print(head3 + str(x*10))
x += 1
# Next number.
