A computer is a programmable device that can automatically perform a sequence of calculations or other operations on data once programmed for the task. It can store, retrieve, and process data according to internal instructions. A computer may be either digital, analog, or hybrid, although most in operation today are digital. Digital computers express variables as numbers, usually in the binary system. They are used for general purposes, whereas analog computers are built for specific tasks, typically scientific or technical. The term "computer" is usually synonymous with digital computer, and computers for business are exclusively digital.
The core, computing part of a computer is its central processing unit ( CPU), or processor. ... A computer system, therefore, is a computer combined with peripheral equipment and software so that it can perform desired functions.
Give brainliest please:)
Consider the following code segment. int[][] arr = {{3, 2, 1}, {4, 3, 5}}; for (int row = 0; row < arr.length; row++) { for (int col = 0; col < arr[row].length; col++) { if (col > 0) { if (arr[row][col] >= arr[row][col - 1]) { System.out.println("Condition one"); } } if (arr[row][col] % 2 == 0) { System.out.println("Condition two"); } } } As a result of executing the code segment, how many times are "Condition one" and "Condition two" printed?
Answer:
Condition one - 1 time
Condition two - 2 times
Explanation:
Given
The above code segment
Required
Determine the number of times each print statement is executed
For condition one:
The if condition required to print the statement is: if (arr[row][col] >= arr[row][col - 1])
For the given data array, this condition is true only once, when
[tex]row = 1[/tex] and [tex]col = 2[/tex]
i.e.
if(arr[row][col] >= arr[row][col - 1])
=> arr[1][2] >= arr[1][2 - 1]
=> arr[1][2] >= arr[1][1]
=> 5 >= 3 ---- True
The statement is false for other elements of the array
Hence, Condition one is printed once
For condition two:
The if condition required to print the statement is: if (arr[row][col] % 2 == 0)
The condition checks if the array element is divisible by 2.
For the given data array, this condition is true only two times, when
[tex]row = 0[/tex] and [tex]col = 1[/tex]
[tex]row = 1[/tex] and [tex]col = 0[/tex]
i.e.
if (arr[row][col] % 2 == 0)
When [tex]row = 0[/tex] and [tex]col = 1[/tex]
=>arr[0][1] % 2 == 0
=>2 % 2 == 0 --- True
When [tex]row = 1[/tex] and [tex]col = 0[/tex]
=>arr[1][0] % 2 == 0
=> 4 % 2 == 0 --- True
The statement is false for other elements of the array
Hence, Condition two is printed twice
Consider the following incomplete method, which is intended to return the longest string in the string array words. Assume that the array contains at least one element.
public static String longestWord(String[] words)
{
/* missing declaration and initialization */
for (int k = 1; k < words.length; k++)
{
if (words[k].length() > longest.length())
{
longest = words[k];
}
}
return longest;
}
Which of the following can replace /* missing declaration and initialization */ so that the method will work as intended?
a. int longest = 0;
b. int longest = words[0].length();
c. String longest = "";
d. String longest = words[0];
e. String longest = words[1];
Answer:
String longest = "";
Explanation:
The initialization that would allow the method to work as intended would be the following
String longest = "";
This is because the method is looping through the array provided as an argument and comparing each word in the array with the word saved inside the variable called longest. The length of both are compared and if the word in the array is longer than the string saved in the variable longest then it is overwritten with the word in the array.
Write a program that will perform a few different String operations. The program must prompt for a name, and then tell the user how many letters are in the name, what the first letter of the name is, and what the last letter of the name is. It should then end with a goodbye message. A sample transcript of what your program should do is below:
Enter your name: Jeremy
Hello Jeremy!
Your name is 6 letters long.
Your name starts with a J.
Your name ends with a y.
Goodbye!
Answer:
Follows are the code to this question:
import java.util.*;//import package for user input
public class Main//defining a class Main
{
public static void main(String[] asp)//main method
{
String n;//defining String variable
Scanner oxr=new Scanner(System.in);//creating Scanner class Object
System.out.print("Enter your name: ");//print message
n=oxr.next();//input value
System.out.println("Hello "+n+"!");//print message with value
System.out.println("Your name is "+n.length()+" letters long.");//print message with value
System.out.println("Your name starts with a "+n.charAt(0)+".");//print message with value
System.out.println("Your name ends with a "+n.charAt(n.length()-1)+".");//print message with value
System.out.print("Goodbye!");//print message
}
}
Output:
Please find the attached file.
Explanation:
In the above-given code, A string variable "n" is declared, that uses the Scanner class object for input the value from the user-end.
In the next step, the multiple print method has used, which calculates the length, first and the last latter of the string value, and uses the print method to print the calculated value with the given message.
instructions and programs data are stored in the same memory in which concept
Answer:
The term Stored Program Control Concept refers to the storage of instructions in computer memory to enable it to perform a variety of tasks in sequence or intermittently.
Implement the method countInitial which accepts as parameters an ArrayList of Strings and a letter, stored in a String. (Precondition: the String letter has only one character. You do not need to check for this.) The method should return the number of Strings in the input ArrayList that start with the given letter. Your implementation should ignore the case of the Strings in the ArrayList. Hint - the algorithm to implement this method is just a modified version of the linear search algorithm. Use the runner class to test your method but do not add a main method to your U7_L4_Activity_One.java file or your code will not be scored correctly.
Answer:
Answered below
Explanation:
//Program is implemented in Java
public int countInitials(ArrayList<string> words, char letter){
int count = 0;
int i;
for(i = 0; i < words.length; i++){
if ( words[i][0]) == letter){
count++
}
}
return count;
}
//Test class
Class Test{
public static void main (String args[]){
ArrayList<string> words = new ArrayList<string>()
words.add("boy");
words.add("bell");
words.add("cat");
char letter = 'y';
int numWords = countInitials ( words, letter);
System.out.print(numWords);
}
}
Which statement is most likely to be true about a computer network?
Answer:
the answer is b
Explanation:
hope this helps
Answer:
A network can have several client computers and only one server.
Explanation:
(Confirmed on Edge)
I hope this helped!
Good luck <3
Green Fields Landscaping Company sells evergreen trees which are priced by height. Customers have a choice of purchasing a tree and taking it home with them or purchasing a tree and having it delivered. Write a program that asks the user the number of trees purchased, the height of the trees, and if they want the trees delivered. Based on that information the program should then generate an invoice. Assume that ALL the trees purchased by a customer are the same height.
Answer:
Answered below
Explanation:
//Program is written in Python programming //language.
number_of_trees = int(input ("Enter number of trees purchased: "))
height_of_trees = float(input("Enter height of trees: "))
delivery_status = input("Do you want trees delivered? enter yes or no ")
price_of_two_meters = 20
total_price = number_of_trees * price_of_two_meters
//Invoice
print (number_of_trees)
print(height_of_trees)
print (total_price)
print (delivery_status)
Last one, this is fashion marketing and I need to know the answer to get the 80%
Answer:
D. It requires that each item of stock is counted and recorded to determine stock levels
Explanation:
A perpetual system of inventory can be defined as a method of financial accounting, which involves the updating informations about an inventory on a continuous basis (in real-time) as the sales or purchases are being made by the customers, through the use of enterprise management software applications and a digitized point-of-sale (POS) equipment.
Under a perpetual system of inventory, updates of the journal entry for cost of goods sold or received would include debiting accounts receivable and crediting sales immediately as it is being made or happening.
Hence, an advantage of the perpetual system of inventory over the periodic system of inventory is that, it ensures the inventory account balance is always accurate provided there are no spoilage, theft etc.
The following are the characteristic of a perpetual inventory system;
I. It is the most popular choice for modern business.
II. Inventory is updated in near real-time.
III. It provides up-to-date balance information and requires fewer physical counts.
Write a program that plays the popular scissor-rockpaper game. (A scissor can cut a paper, a rock can knock a scissor, and a paper can wrap a rock.) The program randomly generates a number 0, 1, or 2 representing scissor, rock, and paper. The program prompts the user to enter a number 0, 1, or 2 and displays a message indicating whether the user or the computer wins, loses, or draws. Here are sample runs:
scissor (0), rock (1), paper (2): 1
The computer is scissor. You are rock. You won
scissor (0), rock (1), paper (2): 2
The computer is paper. You are paper too. It is a draw
Answer:
import random
computer = random.randint(0, 2)
user = int(input("scissor (0), rock (1), paper (2): "))
if computer == 0:
if user == 0:
print("The computer is scissor. You are scissor too. It is a draw")
elif user == 1:
print("The computer is scissor. You are rock. You won")
elif user == 2:
print("The computer is scissor. You are paper. Computer won")
elif computer == 1:
if user == 0:
print("The computer is rock. You are scissor. Computer won")
elif user == 1:
print("The computer is rock. You are rock too. It is a draw")
elif user == 2:
print("The computer is rock. You are paper. You won")
elif computer == 2:
if user == 0:
print("The computer is paper. You are scissor. You won")
elif user == 1:
print("The computer is paper. You are rock. Computer won")
elif user == 2:
print("The computer is paper. You are paper too. It is a draw")
Explanation:
*The code is in Python.
Import the random to be able to generate number number
Generate a random number between 0 and 2 (inclusive) using randint() method and set it to the computer variable
Ask the user to enter a number and set it to the user variable
Check the value of computer the computer variable:
If it is 0, check the value of user variable. If user is 0, it is a draw. If user is 1, user wins. If user is 2, computer wins
If it is 1, check the value of user variable. If user is 0, computer wins. If user is 1, it is a draw. If user is 2, user wins
If it is 2, check the value of user variable. If user is 0, user wins. If user is 1, computer wins. If user is 2, it is a draw
A state university locks in costs for a student once a student starts attending the university. The total cost is $24,500. A student has the following help in covering the costs of school.
An academic scholarship of $10,700.
Other scholarships and grants of $5,000.
Relatives pay $1,600.
What is the amount that the student will need to save every month in order to pay off the remaining costs in 10 months?
$500
$550
$600
$720
Answer:
720
Explanation:
In which cloud service model, virtual machines are provisioned? Iaas
Answer:
SaaS is the cloud service in which virtual machines are provisioned
You are considering upgrading memory on a laptop. What are three attributes of currently installed memory that HWiNFO can give to help you with this decision?
Answer:
Some of the qualities of the installed memory which HWiNFO can reveal are:
Date of manufactureMemory type Speed of memoryExplanation:
HWiNFO is an open-source systems information app/tool which Windows users can utilize as they best wish. It helps to detect information about the make-up of computers especially hardware.
If you used HWiNFO to diagnose the memory, the following information will be called up:
the total size of the memory and its current performance settingsthe size of each module, its manufacturer, and model Date of manufactureMemory type Speed of memorysupported burst lengths and module timings, write recovery time etc.Cheers
We have looked at several basic design tools, such as hierarchy charts, flowcharts, and pseudocode. Each of these tools provide a different view of the design as they work together to define the program. Explain the unique role that each design tool provides (concepts and/or information) to the design of the program.
Answer:
Answered below
Explanation:
Pseudocode is a language that program designers use to write the logic of the program or algorithms, which can later be implemented using any programming language of choice. It helps programmers focus on the logic of the program and not syntax.
Flowcharts are used to represent the flow of an algorithm, diagrammatically. It shows the sequence and steps an algorithm takes.
Hierarchy charts give a bird-eye view of the components of a program, from its modules, to classes to methods etc.
The default print setting for worksheets is________
Print Vertically
Print Selection
Print Entire Workbook
Print Active Sheets
Answer:
Print Active Sheets .
Explanation:
This question refers to the default printing system of the Excel program. Thus, when printing a job using this program, the default option will print all the active sheets, that is, all those spreadsheets where information has been entered. To be able to print in another option, such as selecting certain cells, rows or columns, you must configure the printing for this purpose.
Write a program that simulates picking a card from a deck of 52 cards. Your program should display the rank (Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King) and suit (Clubs, Diamonds, Hearts, Spades) of the card using python
Answer:
Explanation:
The following is a python function that has arrays with all the cards available and then uses random to choose a random card from the dictionary. Finally it prints out the card chosen...
import random
def choose_card():
card = ["Ace", 2, 3, 4, 5, 6, 7, 8, 9, 10, 'Jack', 'Queen', 'King']
symbols = ['Clubs', 'Diamonds', 'Hearts', 'Spades']
chosen_card = str(card[random.randint(0, len(card))])
symbols = symbols[random.randint(0, len(symbols))]
print("Chosen Card: " + chosen_card + " of " + symbols)
Write a program that reads in the text file attached, converts all words to lowercase, and prints out all words in the file that begin with that key letter a, the letter b, and so on. Build a dictionary whose keys are the lowercase letters, and whose values are sets of words which begin with that key letter. After processing the data, print the dictionary to the screen in alphabetical order aligned in two fixed sized columns. Such as:
Answer:
Follows are the code to this question:
def dic_sorted(data):#defining a method print_dic_sorted
s = data.split()#defining a variable that use split method
d = {} #defining a dictionary
alpha = '0123456789abcdefghijklmnopqrstuvwxyz' #defining a variable alpha that hold english alphabets values
for k in alpha:#defining for loop that stores values in the dictionary
d[k]= set()# use dictionary to set value in list
for i in s:# defining for loop to convert value in lower case
i = i.lower() #convert value into lower case by using lower method
a = i[0]# adding value into dictionary
d[a].add(i) # use add method to hold value in dictionary
for k,v in sorted(d.items()):#use for loop to convert value in assending order
if len(d[k])!=0: #use if block to check length of dictionary
print(k,":", sorted(v))#use print to sort value
f_name = 'input.txt'#defining a variable that open file
with open(f_name) as fi:#use open method to read file
data = fi.read() # read file data
dic_sorted(data)#calling method
output:
please find the attached file.
Explanation:
In the code, the "dic_sorted" method is used, which accepts a data variable as a parameter, and inside the method, a split method and an empty dictionary are defined, that converts and holds the value by alphabetical order, for this it defines three for loops.
In the first for loop, it holds a value in the dictionary, and in the second loop it converts a value into the lower case, and in the third loop, it stores the value in its alphabetical order.
When importing data using the Get External Data tools on the Data tab, what wizard is automatically
started after selecting the file you want, to help import the data?
Text Import Wizard
Excel Data Wizard
Import Wizard
Text Wrap Wizard
Answer: text import wizard
Explanation:
You are a computer consultant called in to a manufacturing plant. The plant engineer needs a system to control their assembly line that includes robotic arms and conveyors. Many sensors are used and precise timing is required to manufacture the product. Of the following choices, which OS would you recommend to be used on the computing system that controls the assembly line and why
Answer:
Linux operating system is suitable for the operation of the automated system because it is more secure with a free open-source codebase to acquire and create new applications on the platform.
Explanation:
Linux operating system is open-source software for managing the applications and network functionalities of a computer system and its networks. It has a general public license and its code is available to users to upgrade and share with other users.
The OS allows user to configure their system however they chose to and provides a sense of security based on user privacy.
The Clean Air Act Amendments of 1990 prohibit service-related releases of all ____________. A) GasB) OzoneC) MercuryD) Refrigerants
Answer:
D. Refrigerants
Explanation:
In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act .
The Clean Air Act Amendments of 1990 prohibit service-related releases of all refrigerants such as R-12 and R-134a. This ban became effective on the 1st of January, 1993.
Refrigerants refers to any chemical substance that undergoes a phase change (liquid and gas) so as to enable the cooling and freezing of materials. They are typically used in air conditioners, refrigerators, water dispensers, etc.
Answer:
D
Explanation:
(1) Prompt the user for an automobile service. Output the user's input. (1 pt) Ex: Enter desired auto service: Oil change You entered: Oil change (2) Output the price of the requested service. (4 pts) Ex: Enter desired auto service: Oil change You entered: Oil change Cost of oil change: $35 The program should support the following services (all integers): Oil change -- $35 Tire rotation -- $19 Car wash -- $7 If the user enters a service that is not l
Answer:
In Python:
#1
service = input("Enter desired auto service: ")
print("You entered: "+service)
#2
if service.lower() == "oil change":
print("Cost of oil change: $35")
elif service.lower() == "car wash":
print("Cost of car wash: $7")
elif service.lower() == "tire rotation":
print("Cost of tire rotation: $19")
else:
print("Invalid Service")
Explanation:
First, we prompt the user for the auto service
service = input("Enter desired auto service: ")
Next, we print the service entered
print("You entered: "+service)
Next, we check if the service entered is available (irrespective of the sentence case used for input). If yes, the cost of the service is printed.
This is achieved using the following if conditions
For Oil Change
if service.lower() == "oil change":
print("Cost of oil change: $35")
For Car wash
elif service.lower() == "car wash":
print("Cost of car wash: $7")
For Tire rotation
elif service.lower() == "tire rotation":
print("Cost of tire rotation: $19")
Any service different from the above three, is invalid
else:
print("Invalid Service")
You've created a new programming language, and now you've decided to add hashmap support to it. Actually you are quite disappointed that in common programming languages it's impossible to add a number to all hashmap keys, or all its values. So you've decided to take matters into your own hands and implement your own hashmap in your new language that has the following operations:
insert x y - insert an object with key x and value y.
get x - return the value of an object with key x.
addToKey x - add x to all keys in map.
addToValue y - add y to all values in map.
To test out your new hashmap, you have a list of queries in the form of two arrays: queryTypes contains the names of the methods to be called (eg: insert, get, etc), and queries contains the arguments for those methods (the x and y values).
Your task is to implement this hashmap, apply the given queries, and to find the sum of all the results for get operations.
Example
For queryType = ["insert", "insert", "addToValue", "addToKey", "get"] and query = [[1, 2], [2, 3], [2], [1], [3]], the output should be hashMap(queryType, query) = 5.
The hashmap looks like this after each query:
1 query: {1: 2}
2 query: {1: 2, 2: 3}
3 query: {1: 4, 2: 5}
4 query: {2: 4, 3: 5}
5 query: answer is 5
The result of the last get query for 3 is 5 in the resulting hashmap.
For queryType = ["insert", "addToValue", "get", "insert", "addToKey", "addToValue", "get"] and query = [[1, 2], [2], [1], [2, 3], [1], [-1], [3]], the output should be hashMap(queryType, query) = 6.
The hashmap looks like this after each query:
1 query: {1: 2}
2 query: {1: 4}
3 query: answer is 4
4 query: {1: 4, 2: 3}
5 query: {2: 4, 3: 3}
6 query: {2: 3, 3: 2}
7 query: answer is 2
The sum of the results for all the get queries is equal to 4 + 2 = 6.
Input/Output
[execution time limit] 4 seconds (py3)
[input] array.string queryType
Array of query types. It is guaranteed that each queryType[i] is either "addToKey", "addToValue", "get", or "insert".
Guaranteed constraints:
1 ≤ queryType.length ≤ 105.
[input] array.array.integer query
Array of queries, where each query is represented either by two numbers for insert query or by one number for other queries. It is guaranteed that during all queries all keys and values are in the range [-109, 109].
Guaranteed constraints:
query.length = queryType.length,
1 ≤ query[i].length ≤ 2.
[output] integer64
The sum of the results for all get queries.
[Python3] Syntax Tips
# Prints help message to the console
# Returns a string
def helloWorld(name):
print("This prints to the console when you Run Tests")
return "Hello, " + name
Answer:
Attached please find my solution in JAVA
Explanation:
long hashMap(String[] queryType, int[][] query) {
long sum = 0;
Integer currKey = 0;
Integer currValue = 0;
Map<Integer, Integer> values = new HashMap<>();
for (int i = 0; i < queryType.length; i++) {
String currQuery = queryType[i];
switch (currQuery) {
case "insert":
HashMap<Integer, Integer> copiedValues = new HashMap<>();
if (currKey != 0 || currValue != 0) {
Set<Integer> keys = values.keySet();
for (Integer key : keys) {
copiedValues.put(key + currKey, values.get(key) + currValue);
}
values.clear();
values.putAll(copiedValues);
currValue = 0;
currKey = 0;
}
values.put(query[i][0], query[i][1]);
break;
case "addToValue":
currValue += values.isEmpty() ? 0 : query[i][0];
break;
case "addToKey":
currKey += values.isEmpty() ? 0 : query[i][0];
break;
case "get":
copiedValues = new HashMap<>();
if (currKey != 0 || currValue != 0) {
Set<Integer> keys = values.keySet();
for (Integer key : keys) {
copiedValues.put(key + currKey, values.get(key) + currValue);
}
values.clear();
values.putAll(copiedValues);
currValue = 0;
currKey = 0;
}
sum += values.get(query[i][0]);
}
}
return sum;
}
In CengageNOWv2, you may move, re-size, and rearrange panels in those assignments that use multiple panels.
Answer:
true
Explanation:
trust me lol, I promise it's correct.
Drag the tiles to the correct boxes to complete the pairs.
Match each type of database to its application
Multistage
Stationary
Distributed
Virtual
used for concise as well as detailed
historical data
arrowRight
used where access to data is rare
arrowRight
used for accessing data in diverse
applications using middleware
arrowRight
used by an organization that runs
several businesses
arrowRight
Answer:
1. Multistage database.
2. Stationary database.
3. Virtual database.
4. Distributed database.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
There are four (4) major types of database in a data warehouse and these are;
1. Multistage database: used for concise as well as detailed historical data. It provides summarized data which can be used by an employee for short-term decision making.
2. Stationary database: used where access to data is rare i.e business firms who do not access data frequently. In order to use this database, the users must have an access to metadata store and thus, directly having access to the data on a source system.
3. Virtual database: used for accessing data in diverse applications using middleware. This type of database is dependent on having access to information on various databases.
4. Distributed database: used by an organization that runs several businesses. Therefore, this type of database are usually located or situated in various geographical regions.
What is the difference of using Selection Tool and Direct Selection Tool?
Answer:
The Selection tool will always select the object as a whole. Use this tool when you want to manipulate the entire object. The Direct Selection tool will always select the points or segments that make up a frame
Explanation:
Mark is a stockbroker in New York City. He recently asked you to develop a program for his company. He is looking for a program that will calculate how much each person will pay for stocks. The amount that the user will pay is based on:
The number of stocks the Person wants * The current stock price * 20% commission rate.
He hopes that the program will show the customer’s name, the Stock name, and the final cost.
The Program will need to do the following:
Take in the customer’s name.
Take in the stock name.
Take in the number of stocks the customer wants to buy.
Take in the current stock price.
Calculate and display the amount that each user will pay.
A good example of output would be:
May Lou
you wish to buy stocks from APPL
the final cost is $2698.90
ok sorry i cant help u with this
A painting company has determined that for every 115 square feet of wall space, one gallon of paint and eight hours of labor will be required. The company charges $20.00 per hour for labor. Design a modular program in Python that asks the user to enter the square feet of wall space to be painted and the price of the paint per gallon.
Answer:
Follows are the code to the given question:
Wallsize = int(input("Enter the size of wall space for painting(in sq ft): "))#defining variable Wallsize for input value
rate = int(input("Enter the price of the paint(per gallon): $"))#defining variable rate for input value
per_Gallon = Wallsize/115#defining a variable per_Gallon that calculate its value
print("Number of Gallons of paint: ",per_Gallon)#print value with message
total_Hours = per_Gallon * 8#defining a variable total_Hours that calculate its value
print("Hours of labor required: ",total_Hours)#print value with message
paint_Cost = rate * per_Gallon#defining a variable paint_Cost that calculate its value
print("Cost of the paint: $",paint_Cost)#print value with message
labor_Charge = total_Hours * 20#defining a variable labor_Charge that calculate its value
print("Labor charges: $",labor_Charge)#print value with message
total_Cost = paint_Cost + labor_Charge#defining a variable total_Cost that calculate its value
print("Total cost of paint job: $",total_Cost)#print value with message
Output:
Enter the size of wall space for painting(in sq ft): 800
Enter the price of the paint(per gallon): $33
Number of Gallons of paint: 6.956521739130435
Hours of labor required: 55.65217391304348
Cost of the paint: $ 229.56521739130434
Labor charges: $ 1113.0434782608695
Total cost of paint job: $ 1342.6086956521738
Explanation:
Please find the complete question in the attached file.
In this code, the "Wallsize and rate" two variable is defined that is used for input the value from the user-end, after input the value multiple variables"
per_Gallon, total_Hours,paint_Cost, labor_Charge, and total_Cost" is declared, in which it calculates its respective value and prints the value with the message value.
Help need right now pls
Read the following Python code:
yards - 26
hexadecimalYards = hex (yards)
print (hexadecimalYards)
Which of the following is the correct output? (5 points)
A. 0b1a
B. 0d1a
C. 0h1a
D. 0x1a
Answer:
d. 0x1a
Explanation:
Which is true regarding how methods work? Group of answer choices If a method returns a variable, the method stores the variable's value until the method is called again A return address indicates the value returned by the method After a method returns, its local variables keep their values, which serve as their initial values the next time the method is called A method's local variables are discarded upon a method's return; each new call creates new local variables in memory
Answer:
A method's local variables are discarded upon a method's return; each new call creates new local variables in memory.
Explanation:
A local variable can be defined as an argument passed to a function or a variable that is declared within a function and as such can only be used or accessed within the function.
This ultimately implies that, a local variable is effective whilst the function or block is being executed (active).
Basically, all local variables can only be a member of either the register storage, static or auto (dynamic) categories in computer programming.
The true statement regarding how methods work is that a method's local variables are discarded upon a method's return; each new call creates new local variables in memory. This is so because these local variables are only allocated a storage that is within the frame of the method which is being executed on the run-time stack and would be discarded upon a method's completion or return.
Statement that is true regarding how methods work is :A method's local variables are discarded upon a method's return; each new call creates new local variables in memory.
A local variable serves as a variable which can be accessible within a particular part of a program.
These variables are usually defined within that routine and it is regarded as been local to a subroutine.
We can conclude that in method's local variables it is possible for each new call creates new local variables in memory.
Learn more about method's local variables at:
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During TCP/IP communications between two network hosts, information is encapsulated on the sending host and decapsulated on the receiving host using the OSI model. Match the information format with the appropriate layer of the OSI model.
a. Packets
b. Segments
c. Bits
d. Frames
1. Session Layer
2. Transport Layer
3. Network Layer
4. Data Link Layer
5. Physical Layer
Answer:
a. Packets - Network layer
b. Segments - Transport layer
c. Bits - Physical layer
d. Frames - Data link layer
Explanation:
When TCP/IP protocols are used for communication between two network hosts, there is a process of coding and decoding also called encapsulation and decapsulation.
This ensures the information is not accessible by other parties except the two hosts involved.
Operating Systems Interconnected model (OSI) is used to standardise communication in a computing system.
There are 7 layers used in the OSI model:
1. Session Layer
2. Transport Layer
3. Network Layer
4. Data Link Layer
5. Physical Layer
6. Presentation layer
7. Application layer
The information formats given are matched as
a. Packets - Network layer
b. Segments - Transport layer
c. Bits - Physical layer
d. Frames - Data link layer
Given that the variable named Boy = "Joey" and the variable named Age = 6, create statements that will output the following message:
Congratulations, Joey! Today you are 6 years old.
First, write one statement that will use a variable named Message to store the message. (You will need to concatenate all of the strings and variables together into the one variable named Message. If you don't know what that means, read the section in Chapter 1 about concatenation.)
Then write a second statement that will simply output the Message variable.
Answer:
isn't it already showing it if not put text box
Explanation:
