7. Complete the following problem below in java
The program will first display a menu that enables the users to choose whether they
want to view all students 'records or view only the records of a specific student by the
student's id. See sample below.
MENU
1, View all students' records
2. View a student's records by ID
Please enter your choice 1
If the user types in for Choice 1, it displays this:
StudentID | Quiz1 | Quiz2 | Mid-Term | Final |
1232
| 10 | 23
56
2343
| 45
143
124
| 78 |
2343
| 34
145
145
145
13423
| 67 16 165
|56|
Example:
11232
145
If the user types in for Choice 2, it will ask the user to enter in an ID. If the user enters in
an invalid ID, the user has to keep entering one in until a correct one is entered. Once a
valid ID is entered, will display the students ID, Quiz1, Quiz2, Mid-Term, and Final
grade.
| 10 | 23
145
| 56 |
Answers
Answer:
import java.util.Scanner;
public class Linkify {
public static void main(String[] args) {
int[][] records = {
{1232, 10, 23, 45, 56},
{2343, 45, 43, 24, 78},
{2343, 34, 45, 45, 45},
{3423, 67, 65, 65, 56}
};
Scanner input = new Scanner(System.in);
int choice;
do {
System.out.println("MENU");
System.out.println("1. View all students' records");
System.out.println("2. View a student's records by ID");
System.out.print("Please enter your choice: ");
choice = input.nextInt();
switch(choice) {
case 1:
System.out.println("| StudentID | Quiz1 | Quiz2 | Mid-Term | Final |");
for(int i = 0; i < records.length; i++) {
System.out.printf("| %-9d | %-5d | %-5d | %-8d | %-5d |\n",
records[i][0], records[i][1], records[i][2],
records[i][3], records[i][4]);
}
break;
case 2:
System.out.print("Enter a student ID: ");
int id = input.nextInt();
boolean found = false;
for(int i = 0; i < records.length; i++) {
if(records[i][0] == id) {
System.out.printf("| %-9d | %-5d | %-5d | %-8d | %-5d |\n",
records[i][0], records[i][1], records[i][2],
records[i][3], records[i][4]);
found = true;
break;
}
}
if(!found) {
System.out.println("Invalid ID, please try again.");
}
break;
default:
System.out.println("Invalid choice, please try again.");
break;
}
System.out.println();
} while(choice != 1 && choice != 2);
input.close();
}
}
Explanation:
This program first initializes a 2D array called records with the student records data. It then displays a menu with two choices: 1) view all student records, or 2) view a specific student's record by ID.
The program uses a do-while loop to keep displaying the menu and accepting input until the user chooses either option 1 or option 2. Inside the switch statement, the program either loops through the entire records array to print all student records or prompts the user to enter a student ID and searches the records array for a matching ID to print the corresponding record.
The printf method is used to format the output into columns with fixed widths. If an invalid choice or ID is entered, an error message is displayed and the menu is displayed again. Once the user chooses either option 1 or option 2, the program exits.
Related Questions
What is the reason for encrypting a mobile device's hard drive? [Choose all that apply]
Prevent unauthorized access to the data on the device
Prevent the access to the location of the device when lost or stolen
Prevent the device's hard drive from being accessed when lost or stolen
Prevent the device from being unlocked with a password or PIN
Answers
The reasons for encrypting a mobile device's hard drive are:
Prevent unauthorized access to the data on the devicePrevent the device's hard drive from being accessed when lost or stolenWhat is the reason for encrypting a mobile device's hard drive?Encrypting a mobile device's hard drive ensures that the data on the device is protected in case the device falls into the wrong hands.
If the device is lost or stolen, encryption makes it much harder for someone to access the data stored on the device.
Without the encryption key, the data on the device is effectively useless to anyone who does not have authorized access.
So the correct options are 1 and 3. Prevent unauthorized access to the data on the device, and Prevent the device's hard drive from being accessed when lost or stolen
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What is one myth a typist might believe about looking at their hands?
Question 1 options:
A I type slower when I look at my hands.
B I make more mistakes when I look at my hands.
C It's easier to type if you don't look down.
D My hands are too big.
Answers
One myth a typist might believe about looking at their hands is that C. It's easier to type if you don't look down.
Why do typists believe this myth ?While it is true that touch typing (typing without looking at the keyboard) can improve typing speed and accuracy over time, some typists may still find it helpful to look at their hands, especially when learning to type or when typing on an unfamiliar keyboard.
In fact, some typists may actually type slower or make more mistakes if they do not look at their hands, especially if they are still learning to type or if they are typing on a keyboard with a different layout than what they are used to.
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16.
is a field of study that helps to protect electronic data.
O A. Cyberterrorism
O B. Digital security
O C. Hacking
D. Cybersecurity
Answers
In an sql query Find the ID, first name,
and last name of each
customer whose first name
begins with the letter S.
Answers
Answer:
Sure, here's the SQL query for you: ``` SELECT ID, first_name, last_name FROM customers WHERE first_name LIKE 'S%'; ``` This will select the ID, first name, and last name of each customer whose first name begins with the letter S. The `LIKE` operator is used to match the first letter of the first name with the letter S.
What is one way to increase the bandwidth of a network that uses traditional
wires and cables?
A. Connect more Ethernet switches to the network.
B. Remove the Wi-Fi router.
C. Replace the current cables with fiber optic cables.
D. Install autosensing mechanisms in each wire.
Answers
One way to increase the bandwidth of a network that uses traditional wires and cables include the following: C. Replace the current cables with fiber optic cables.
What is bandwidth?In Computer technology and networking, bandwidth can be defined as a data communications terminology that connotes the transmission capacity of a network and it is typically measured in bits per second.
What is a fiber optic cable?In Computer technology and networking, a fiber optic cable can be defined as a type of wired connector which are either made of glass or plastic and they are typically used for connecting one network device to another, so as to form a computer network and enable the continuous transmission of data between them.
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Please tell us your thoughts on one recently purchased product or service you believe can be improved.
Answers
Inflation everything is going up because of inflation
hoped that helped!
8.6 Code Practice: Question 1 Python
Write a function named "buildList" that builds a list by appending a given number of random integers from 100 to 199 inclusive. It should accept two parameters — the first parameter is the list, and the second is an integer for how many random values to add, which should be input by the user.
Print the list after calling "buildList". Sort the list and then print it again.
Sample Run
How many values to add to the list:
10
[141, 119, 122, 198, 187, 120, 134, 193, 112, 146]
[112, 119, 120, 122, 134, 141, 146, 187, 193, 198]
Answers
Here's the Python code for the "buildList" function that meets the requirements:
The Python Codeimport random
def buildList(lst, num):
for i in range(num):
lst.append(random.randint(100, 199))
lst = []
num = int(input("How many values to add to the list:\n"))
buildList(lst, num)
print(lst)
lst.sort()
print(lst)
In this code, we first import the random module to generate random integers. The buildList function takes two parameters, lst which is the list to which the random integers will be appended and num which is the number of random integers to generate and append to the list.
The buildList function uses a for loop to iterate num times, and in each iteration, generates a random integer between 100 and 199 (inclusive) using the random.randint function and appends it to the list.
We then call the buildList function with the input values for lst and num provided by the user. We print the list using the print function, then sort the list using the sort method and print it again.
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Question 2.2 (Coding*) [20 points] Train a Multinomial Naive Bayes model on the training set and evaluate your model on the test set given. Find and report the accuracy and the confusion matrix for the test set as well as how many wrong predictions were made. In estimating the model parameters use the above estimator functions. If it arises in your code, define log 0 as it is, that is -inf. In case of ties, you should predict "0". Hint: To simulate the behavior of the number '-inf', you can assign an arbitrarily small number to this value (like -10¹2), to handle overflow issues. If you make such an assumption, indicate it in your report.
Answers
On the training set, develop a Multinomial Naive Bayes model, and assess it on the test set. Declare the accuracy, the confusion matrix, and the total number of inaccurate forecasts. Define log 0 as -inf and forecast "0" in the event of a tie. Assign an arbitrary small number (like -1012) to deal with overflow problems.
What is the naïve Bayes algorithm's formula?A sound method for calculating the conditional chance is provided by the Bayes Theorem. The Bayes Theorem computation can be expressed in the following manner: P(A|B) equals P(B|A)*P(A)/P(B)
When is multinomial Naive Bayes appropriate?With discrete characteristics, the multinomial Naive Bayes classifier is appropriate. (e.g., word counts for text classification). Typically, integer feature values are required by the multinomial distribution.
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Establish the relationship between computer and mass media while justifying the importance of computer to mass communication
Answers
The relationship between computer and mass media is intertwined and has become more and more significant with the advancement of technology. Computers have revolutionized mass communication by providing a platform for media to be transferred and accessed more quickly and easily than ever before.
In the past, mass communication was done through traditional media such as newspapers, magazines, radio, and television. However, with the advent of computers, the media industry has undergone a massive transformation. Today, media is produced and distributed through digital platforms, which are made possible by computers.
Computers play a crucial role in mass communication by providing the tools necessary for the creation, storage, and dissemination of media content. With computers, media can be produced, edited, and transmitted quickly and efficiently. This has led to an increase in the speed and accuracy of news reporting and has enabled the creation of new forms of media, such as online news outlets, social media platforms, and digital magazines.
Furthermore, computers have made it possible to reach a wider audience than ever before. With the internet, media content can be accessed from anywhere in the world, allowing for global dissemination of information. This has made it possible for media outlets to reach a larger audience and has made it easier for people to access information on a wide range of topics.
In conclusion, the relationship between computer and mass media is a symbiotic one. Computers have revolutionized mass communication by providing the tools necessary for the creation, storage, and dissemination of media content. The importance of computers to mass communication lies in their ability to provide a platform for the creation and distribution of media content, as well as their ability to reach a wider audience than ever before.
You have been hired to create a Grilled Rump Steak ordering app. The app should have a class named GrilledRumpSteak which contains data about a single rump. The GrilledRumpSteak class should include the following:
▪ Private instance variables to store the size of the rump (either small, medium, or large), the number of salsa toppings, the number of tomato toppings, and the number of mushroom toppings.
▪ Constructor(s) that set all the instance variables.
▪ Public methods to get and set the instance variables.
▪ A public method named calcCost( ) that returns the cost of the rump as a double. The Grilled
Rump Steak cost is determined by: Large: R200 + 30 per topping Medium: R150 + R20 per
topping Small: R120 + R15 per topping
▪ public method named getDescription( ) that returns a String containing the rump size, quantity
of each topping.
Write test code to create several grilled rump steaks and output their descriptions. For example, a large rump with one salsa, one tomato, and two mushroom toppings should cost a total of R320. Now Create a GrilledRumpSteakOrder class that allows up to three grilled rump steaks to be saved in order. Each grilled rump steak saved should be a GrilledRumpSteak object. Create a method calcTotal() that returns the cost of the order
Answers
[tex] \boxed{ \red{ \sf Answer}}[/tex]
Here's an implementation of the GrilledRumpSteak class with the required features:
```java
public class GrilledRumpSteak {
private String size;
private int salsaToppings;
private int tomatoToppings;
private int mushroomToppings;
public GrilledRumpSteak(String size, int salsaToppings, int tomatoToppings, int mushroomToppings) {
this.size = size;
this.salsaToppings = salsaToppings;
this.tomatoToppings = tomatoToppings;
this.mushroomToppings = mushroomToppings;
}
public String getSize() {
return size;
}
public void setSize(String size) {
this.size = size;
}
public int getSalsaToppings() {
return salsaToppings;
}
public void setSalsaToppings(int salsaToppings) {
this.salsaToppings = salsaToppings;
}
public int getTomatoToppings() {
return tomatoToppings;
}
public void setTomatoToppings(int tomatoToppings) {
this.tomatoToppings = tomatoToppings;
}
public int getMushroomToppings() {
return mushroomToppings;
}
public void setMushroomToppings(int mushroomToppings) {
this.mushroomToppings = mushroomToppings;
}
public double calcCost() {
double cost;
switch (size) {
case "Large":
cost = 200 + salsaToppings * 30 + tomatoToppings * 30 + mushroomToppings * 30;
break;
case "Medium":
cost = 150 + salsaToppings * 20 + tomatoToppings * 20 + mushroomToppings * 20;
break;
default:
cost = 120 + salsaToppings * 15 + tomatoToppings * 15 + mushroomToppings * 15;
}
return cost;
}
public String getDescription() {
return size + " rump with " + salsaToppings + " salsa toppings, " + tomatoToppings + " tomato toppings, and " + mushroomToppings + " mushroom toppings";
}
}
```
And here's an implementation of the GrilledRumpSteakOrder class that allows up to three grilled rump steaks to be saved in order:
```java
public class GrilledRumpSteakOrder {
private GrilledRumpSteak[] rumpSteaks;
private int count;
public GrilledRumpSteakOrder() {
rumpSteaks = new GrilledRumpSteak[3];
count = 0;
}
public void addRumpSteak(GrilledRumpSteak rumpSteak) {
if (count < 3) {
rumpSteaks[count] = rumpSteak;
count++;
}
}
public double calcTotal() {
double total = 0;
for (int i = 0; i < count; i++) {
total += rumpSteaks[i].calcCost();
}
return total;
}
}
```
To test the classes, we can create several GrilledRumpSteak objects and output their descriptions, then create a GrilledRumpSteakOrder object, add the rump steaks to it, and calculate the total cost of the order:
```java
public static void main(String[] args) {
GrilledRumpSteak rump1 = new GrilledRumpSteak("Large", 1, 1, 2);
GrilledRumpSteak rump2 = new GrilledRumpSteak("Medium", 2, 0, 1);
GrilledRumpSteak rump3 = new GrilledRumpSteak("Small", 0, 3, 0);
System.out.println(rump1.getDescription()); // Output: Large rump with 1 salsa toppings, 1 tomato toppings, and 2 mushroom toppings
System.out.println(rump2.getDescription()); // Output: Medium rump with 2 salsa toppings, 0 tomato toppings, and 1 mushroom toppings
System.out.println(rump3.getDescription()); // Output: Small rump with 0 salsa toppings, 3 tomato toppings, and 0 mushroom toppings
GrilledRumpSteakOrder order = new GrilledRumpSteakOrder();
order.addRumpSteak(rump1);
order.addRumpSteak(rump2);
order.addRumpSteak(rump3);
System.out.println("Total cost: R" + order.calcTotal());
What is the purpose of the user manual?
Answers
Answer: to understand the use and functionality of the product
What is the default security setting for macros? enable all macros without notification disable all macros without notification allow digitally signed macros disable all macros with notification
DDDDDDDDDDDDDDDDD
Answers
The default security setting for macros in Microsoft Office is to disable all macros without notification.
Why is this so?This is because macros can potentially be used to execute harmful code on a user's computer. However, users can adjust this setting based on their security preferences.
Other options include enabling all macros without notification, which is the least secure option, allowing digitally signed macros, which allows macros that are digitally signed by a trusted publisher to run without notification, and disabling all macros with notification, which prompts the user to enable macros on a case-by-case basis.
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Summary: Given integer values for red, green, and blue, subtract the gray from each value.
Computers represent color by combining the sub-colors red, green, and blue (rgb). Each sub-color's value can range from 0 to 255. Thus (255, 0, 0) is bright red, (130, 0, 130) is a medium purple, (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (In other words, equal amounts of red, green, blue yield gray).
Given values for red, green, and blue, remove the gray part.
Ex: If the input is:
130 50 130
the output is:
80 0 80
Hint: Find the smallest value, and then subtract it from all three values, thus removing the gray.
In Coral Language please!
Answers
By selecting the smallest value and deducting it from each of the three values, you can eliminate grey from an RGB colour by writing a function that returns the new RGB colour as a tuple.
When the hexadecimal numbers are #FF0000, what RGB colours would result?#FF0000 denotes FF in Red and 0 in Green or Blue. Red is the outcome. #0000FF denotes a Blue value of FF and no Red or Green. The outcome is BLUE.
255 255 255 RGB pairs represent what colour?Cyan = (0, 255, 255) Orange means (255, 255, 0) Absence of added colour in black = (0, 0, 0) The colour white is made up of all added colours. (255, 255, 255).
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I downloaded 3 games from Ytorrent and none of them have sound effects. What should I do?
Answers
Use VLC player, which typically supports all formats, or download the appropriate codec.
What is sound effects?An artificially produced or enhanced sound, or sound process, is known as a sound effect and is used to highlight artistic or other material in movies, television programs, live performances, animation, video games, music, or other forms of media.
They were traditionally produced with foley in the 20th century.
Hardware or software tools called audio effects can alter the sound of an audio signal. Rate, feedback, and drive are just a few of the many parameters that can be used to influence effects.
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what is computer suytem?
Answers
A computer is a tool that may be designed to perform a series of mathematical or logical processes automatically. Several generic sets of operations known as programs can be carried out by modern digital electronic computers. Many different jobs can be carried out by computers thanks to these programs.
What function does a computer system serve in modern society?Word processing, financial management, and database administration are the three most frequent uses of computers. To manage vast amounts of dynamic data on issues including customers, suppliers, staff, inventories, supplies, product orders, and service requests, database systems are used.In homes, there are many different uses for computers. They are helpful for online banking, paying bills online, playing games, streaming movies, playing music, and other activities including online education and banking. Through email or social media, are also a fantastic way for family members to communicate with one another.You can communicate with your friends, watch films and movies, listen to music, play a game that you enjoy, and watch.To learn more about the computer systems, refer to:
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PLS HELP
Which is not involved in an action plan for creating a computer program?
A) making a schedule
B) defining testing
C) planning each phase
D) creating a flowchart
Answers
Answer:
The answer is A) making a schedule. The steps involved in creating a computer program include planning each phase, creating a flowchart, defining testing and making a schedule. Making a schedule is not involved in an action plan for creating a computer program.
Hope This Helps!
why do some people worry that the European Union may restrict neon lights
Answers
Due to worries about energy efficiency and the environment, some people are concerned that the European Union may ban neon lights. Neon lights need a lot of electricity and have gas inside them.
What effects do neon lights have on the environment?Because neon is chemically inert and doesn't create any compounds, it has no effect on the environment and poses no threat to it. There is no evidence that this element harms the environment.
What was the reason of the neon lights' light emission?Neon lights are a type of cold cathode gas discharge light.. A sealed glass tube with a metal electrode at each end that is filled with one of many gases under low pressure is known as a neon tube.
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Why is it important to format your spreadsheets and use conditional formatting?
Answers
Answer:
So people can read it and quickly make sense of the data
Large and small app buttons on the right side of the start menu
Answers
Answer:
the are known as "tiles"
Write a program to read Age of N. students then arrange them in ascending order by using function pointer.
Answers
Here's an example program in C++ that reads the ages of N students from the user and sorts them in ascending order using a function pointer:
The Program#include <iostream>
#include <algorithm>
using namespace std;
// Function to sort the ages in ascending order
void sort_ages(int *ages, int n, bool (*cmp)(int, int)) {
for (int i = 0; i < n - 1; i++) {
for (int j = i + 1; j < n; j++) {
if (cmp(ages[i], ages[j])) {
swap(ages[i], ages[j]);
}
}
}
}
// Comparison function to sort in ascending order
bool ascending(int a, int b) {
return a < b;
}
int main() {
int n;
cout << "Enter the number of students: ";
cin >> n;
int *ages = new int[n];
for (int i = 0; i < n; i++) {
cout << "Enter age of student " << i+1 << ": ";
cin >> ages[i];
}
// Sort the ages in ascending order using function pointer
sort_ages(ages, n, ascending);
// Print the sorted ages
cout << "Sorted ages: ";
for (int i = 0; i < n; i++) {
cout << ages[i] << " ";
}
cout << endl;
delete[] ages;
return 0;
}
In this program, we define a function sort_ages that takes an array of ages, the number of students n, and a comparison function pointer cmp. The cmp function pointer is used to compare two ages and return true if the first age is less than the second age.
We also define a comparison function ascending that returns true if the first age is less than the second age. This function is passed as the cmp argument to sort_ages.
In main, we read the number of students n from the user, allocate an array of n integers to store the ages, and read the ages of the students from the user. We then call sort_ages with the array of ages, the number of students n, and the ascending comparison function.
Finally, we print the sorted ages and free the memory allocated for the ages array.
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To what activity is this related?
Name
Company
Email
Phone
Website
Street
City
Province/Region/State
71P code
Name
No Match
No Match
Phone
No Match
Street
City
State
710
4
Answers
It appears that there may be a typo or missing context in your question. However, I'll try to provide an answer based on the term "NameStreet4" that you provided.
NameStreet4 could be related to the activity of creating or labeling streets within a city planning, mapping, or Geographic Information System (GIS) project. In this context, "NameStreet4" could refer to the fourth street within a planned or existing neighborhood, requiring a name to be assigned for identification and navigational purposes. Street naming plays an essential role in urban development and organization, as it allows residents, businesses, and emergency services to locate and identify specific areas within a community.
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HELP ASAP
What would a network administer use to control a group of virtual machines?
Hypervisor
Client
Guest
Network
Answers
A network administrator would use a hypervisor to control a group of virtual machines.
What is the network administrator ?A hypervisor is a software layer that enables multiple virtual machines to run on a single physical host machine. The hypervisor provides the necessary resources, such as memory and CPU, to each virtual machine and manages the communication between them.
Therefore, The network administrator can use the hypervisor to configure and manage the virtual machines, such as creating and deleting virtual machines, allocating resources, setting up network connectivity, and monitoring performance.
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Careers in the Information Support and Services pathway did not exist until: between 2000 and 2005. after the 1960s. the early 1990s. the development of social media apps.
Answers
Answer:
Explanation:
This statement is not entirely accurate. Careers in the Information Support and Services pathway have existed well before the 2000s or the development of social media apps. This career pathway includes roles related to information technology (IT), computer systems, and technical support services, which have been in existence since the advent of computers and technology in the workplace. In fact, the IT industry dates back to the mid-20th century, and technical support services have been around for decades as well. While the specific job titles and roles within this pathway may have evolved and expanded over time, the general career pathway has been in existence for many years.
What type of device is a printer?
Answers
Answer:
Explanation:
A printer is an output device which prints a hard copy of the electronic data that is stored in the computer or any other devices. The electronic data may include documents, text, images or even the combination of all three. Particular printers are available for printing particular data types.
UESTION 37
Effective studying is effortless.
True
O False
QUESTION 38
is an effective study strategy where you don't cram but study over a period of days, preferably with breaks in between
O a. Practice testing
Ob. Interleaving
O c. Spacing
O d. Cramming
QUESTION 39
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Answers
False. Effective studying is effortless.
Spacing is an effective study strategy where you don't cram but study over a period of days, preferably with breaks in between
What is effective studey?Effective studying requires effort, focus, and concentration. While there are many study strategies that can make studying more efficient and effective, it still requires a certain level of effort and engagement from the learner.
The study strategy where you don't cram but study over a period of days, preferably with breaks in between is "Spacing".
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application for merged documents mass producing contracts
Answers
Use a word processor programme like Microsoft Word's mail merge feature to combine the template document with the spreadsheet or database, adding the necessary data to each contract.
What are the advantages of mail combining when creating contracts in bulk?Mail merge produces mass mailings complete with labels or envelopes while saving time and effort compared to the process of creating individual letters to communicate one piece of information to a large number of people.
What are the two uses for postal combining?Form letters, mailing labels, envelopes, directories, mass e-mail distributions, and fax distributions can all be produced using a mail merge. . Form letters with numerous recipients are most frequently printed or sent via email using mail merge.
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Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in reverse binary. For an integer x, the algorithm is:
As long as x is greater than 0
Output x % 2 (the remainder is either 0 or 1)
x = x / 2
Note: The above algorithm outputs the 0's and 1's in reverse order.
Ex: If the input is:
6
the output is:
011
6 in binary is 110; the algorithm outputs the bits in reverse.
Answers
Below is the Python code to accomplish this:
python
# take input from user
decimal_num = int(input("Enter a positive integer: "))
# initialize an empty string to hold the binary digits
binary_string = ""
# convert the decimal number to binary and store in binary_string
while decimal_num > 0:
binary_string += str(decimal_num % 2)
decimal_num = decimal_num // 2
# output the binary string in reverse order
print(binary_string[::-1])
What is the program about?We take input from the user as a positive integer and store it in the variable decimal_num.
We initialize an empty string binary_string to hold the binary digits.We convert the decimal number to binary by repeatedly dividing by 2 and storing the remainder (0 or 1) in binary_string.Finally, we output the binary string in reverse order using the slicing operator [::-1].
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Read in a 3-character string from input into variable userCode. Declare a boolean variable isValid and set isValid to true if userCode only contains digits. Otherwise, set isValid to false.
Ex: If the input is 836, then the output is:
Passcode is valid
Note: Use getline(cin, userCode) to read the entire line from input into userCode.
in c++?
Answers
The program based on the information is given below.
How to write the programHere's a C++ code snippet that reads a 3-character string from input into variable userCode, checks if it only contains digits, and sets the boolean variable isValid accordingly:
#include <iostream>
#include <string>
using namespace std;
int main() {
string userCode;
bool isValid = true;
getline(cin, userCode); // read input into userCode
// check if userCode contains only digits
for (char c : userCode) {
if (!isdigit(c)) {
isValid = false;
break;
}
}
// output result based on isValid
if (isValid) {
cout << "Passcode is valid" << endl;
} else {
cout << "Passcode is not valid" << endl;
}
return 0;
}
Note that the code uses the isdigit function from the <cctype> library to check if each character in userCode is a digit.
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I have a masm program that has 2 arrays. They both have 4 values. I do not need inputs since I already have the values provided for me. One array is the points earned in a test and the other array is the points possible. In order to get the average I have to use the formula (points earned/points possible) * 100. I can’t use a loop for this implementation. It has to be a simple masm program. The answers have to be stored in eax and edx
Answers
This program only calculates the average for the first elements of the two arrays. To calculate the averages for the other elements, you would need to adjust the addresses in eax and edx accordingly.
What is an array?
In computer programming, an array is a collection of data elements of the same data type, arranged in a contiguous block of memory and identified by a single name. Each element in the array can be accessed and manipulated by its index or position within the array. Arrays are commonly used to store and manipulate sets of related data, such as a list of numbers or a series of characters in a string.
MASM program that calculates the average score using the provided values in two arrays without using a loop:
.model small
.stack 100h
.data
earned_points dw 80h, 90h, 70h, 85h
possible_points dw 100h, 100h, 80h, 90h
.code
main proc
mov ax, earned_points
add ax, [earned_points+2] ;
//add the first two values of the earned points array
mov bx, possible_points
add bx, [possible_points+2] ;
//add the first two values of the possible points array
mul bx ;
//multiply the earned points total by the possible points total
mov dx, 100h ;
//set the divisor to 100
div dx ;
//divide the total by 100 to get the average
mov eax, ax ;
//move the result to eax
mov edx, 0 ;
//set edx to 0 (since we don't have any remainder)
; repeat the process for the second half of the arrays
mov ax, [earned_points+4]
add ax, [earned_points+6]
mov bx, [possible_points+4]
add bx, [possible_points+6]
mul bx
mov dx, 100h
div dx
add eax, ax ; add the result to the previous average
mov eax, eax ; move the final average to eax
mov edx, 0 ; set edx to 0 (since we don't have any remainder)
; exit program
mov ah, 4ch
int 21h
main endp
end main
This program loads the first two values of each array into the ax and bx registers, respectively, and multiplies them together. It then divides the result by 100 and stores the quotient in eax. It repeats this process for the second half of the arrays and adds the results to the previous average. Finally, it moves the final average to eax and sets edx to 0.
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James puts about 60 gallons of gas in his car every
month. Currently the gas prices is $3.50 per gallon.
Calculate how much he spends on gas each month
and put it in the spreadsheet.
Answers
Answer: To calculate how much James spends on gas each month, you need to multiply the number of gallons he uses by the price per gallon. In this case, that would be 60 x 3.50 = 210. So James spends $210 on gas each month. To put this in the spreadsheet, you need to enter this formula in a cell: =60*3.50