C Which of the following is true? A) A class can only implement one class A class can extend many classes B) A class can only extend one class A class can implement many classes C) A class can extend many classes A class can implement many classes D) A class can only extend one class A class can only implement one class OC OD 4 O A OB
Q: In the context of computer systems, what are the key differences between hardware and software?
A: Hardware and software are two essential components of computer systems. Hardware refers to the…
Q: Using Java - Creating an Abstract Class Shape II Create an abstract class "Shape" with the following…
A: The JAVA Code is given below with output screenshot along with UML diagram
Q: it returns with Msg 8124, Level 16, State 1, Line 8 Multiple columns are specified in an aggregated…
A: The SQL query is given below with output screenshot Demo data is used in the tables
Q: How do digital signatures work? Can they be defined? How do digital and electronic signatures…
A: How do digital signatures work? Digital signatures are a cryptographic technique used to verify the…
Q: lace a check ( v ) (V) beside each sentence that uses capitalization correctly. He conducts those…
A: He conducts those Vivaldi concertos with liveliness (V).
Q: The core of the flocking algorithm is four steering behaviour rules, which give a group of…
A: 4 steering behaviours of flocking algorithms are given below
Q: Can you provide me with an example of a SQL database that really exists?
A: A database is an organised collection of data that can be easily accessed. To manage these databases…
Q: What may go wrong if you don't strictly enforce the integrity of your database? Where are the places…
A: 1) Data integrity is the preservation, assurance, correctness, and consistency of data throughout…
Q: Condition variables—how do they work? Monitor definition: What do condition variables do with a…
A: In this question we need to explain the concept of condition variables and their working in…
Q: Automata Theory: Draw a NFA that accepts the language denoted by the following regular…
A: Answer : Non - Deterministic Finite Automata (NFA) : 1) From the given problem we have to draw an…
Q: (zu) Uz/8 7/82
A: To prove that n3/2 ≠ Ω( n2 ), we need to show that there does not exist a constant c and a value n_0…
Q: Explain the steps used by a Java Enterprise Edition environment to install native authentication and…
A: The Java Enterprise Edition is responsible for providing the software container that was created to…
Q: Compare indexed file space, linked allocation, and contiguous disk space allocation.
A: Introduction: When it comes to storing data on a computer's hard disk, there are several methods…
Q: In the case of a data breach, are cloud-based security solutions susceptible to compromise? Is there…
A: Introduction: As more and more businesses move their data storage and processing to cloud-based…
Q: Question 5 How do you model the following situation with a use case diagram: Mother and daughter…
A: The use case diagram consists of three actors: User (which represents both the mother and…
Q: So why did Cisco decide to go from a traditional access control system to an IP networked one?
A: Independent command and control systems: Controls of entry on a more fundamental level Just one site…
Q: Please solve with python code
A: Coded using Python 3. The sorted_insert function takes a parameter v, creates a new node with the…
Q: Given a list of non-empty strings, write a method that returns a Map with a key for every different…
A: The required code in Java import java.util.*; public class MyClass { public static…
Q: step of 0.1. and give it a suitable title and labels. y1 = cos x y2 = cos²x + 0.1 y3 = sin x x +…
A: Matlab is a matrix-based programming language designed for engineers to analyze and design systems…
Q: How do machine learning models make predictions based on input data, and what techniques are…
A: We have to explain how machine learning models make predictions based on input data, and what…
Q: In what ways are hardware and software fundamentally distinct from one another? What are some of the…
A: Software is defined as the set of programs that can control the operations of a computer and…
Q: Write a program that tells the user what type of movie and show times they can attend based on their…
A: The Python code is given below with flowchart
Q: Assume a physical memory of 4 page frames and initially all frames are empty. Given the reference…
A: Physical memory is also called random access memory RAM which acts as faster volatile storage. The…
Q: How do computer networks enable communication and information sharing among devices and users in…
A:
Q: Digital signatures-how do they work? What distinguishes digital signatures from electronic ones? Use…
A: Introduction: In the digital age, electronic documents and messages are ubiquitous. However, their…
Q: Cybercrime fascinates and repulses people.
A: Cybercrime is criminal activity that either targets or uses a computer, a computer network or a…
Q: How is "data mining" done? Data mining benefits for profit-seeking businesses? Accounting data…
A: Data mining: Data mining is the process of analyzing a large batch of information to discern trends…
Q: How secure is your database? Two approaches to protect your database?
A: Introduction: The protection of sensitive information inside a database as well as the avoidance of…
Q: Could you please explain the measures of the supply chain in respect to the basic processes?
A: The supply chain refers to the sequence of activities that are involved in producing and delivering…
Q: Are cloud computing's advantages comparable to on-premises systems? Cloud computing dangers and…
A: Rapid Scaling considers speed and licence availability and optimises your cloud workloads by…
Q: demonstrate how to work with a real SQL
A: Structured Query Language (SQL) is a programming language specifically designed for relational…
Q: Do data breaches influence cloud security? Can anything be done to avoid this?
A: Introduction: Most thriving businesses today understand the importance of data security and are…
Q: Check databases for your information. How are databases collected? Who updates databases and how…
A: Database: You may go online for a list of databases that are accessible in your country. When you…
Q: Create a python program solving this: Given the user input of a radius of a circle, r, output the…
A: The Python code is given below with output screenshot
Q: hexadecimal We usually write numbers in decimal form (or base 10), meaning numbers are composed…
A: Hexadecimal is a numbering system with base 16 used to represent large numbers with limited digits.…
Q: Determine the many types of access control methods. Investigate the differences between the numerous…
A: Access control is the process of managing access to resources or systems, ensuring that only…
Q: What benefit is knowing how to retrieve and restore computer data?
A: Introduction There are many advantages to knowing how to retrieve and restore computer data, both…
Q: For what reasons is it crucial for systems analysts to document user requirements?
A: The user requirements specify the demands of the users as well as the activities that they desire to…
Q: How should a corporation notify consumers of a data breach?
A: Introduction: Data breaches have become increasingly common in the digital age, and corporations…
Q: Learn to differentiate between the many access control system classifications. Describe the many…
A: Answer: Securing Confidential Information: To limit unauthorised access to sensitive company data,…
Q: How is "data mining" done?
A: Data mining is a process that involves analyzing large datasets to identify patterns, relationships,…
Q: Can an actual SQL database from the real world be provided and explained?
A: Introduction: A SQL (Structured Query Language) database is a type of relational database that…
Q: To what extent does the phrase "choose a number at random" convey its intended meaning?
A: Random: When something is selected at random from a set, it means that it was picked without any…
Q: Is it a criminal offense to commit crimes online?
A: Introduction: Cybercrime is deemed to be any kind of criminal activity that can be committed through…
Q: What is data theft? What happened? What? What protections and detection systems protect private…
A: The above question is solved in step 2 :-
Q: hat do you think are the sources of the information Jim and his team collected? How do you think…
A: It's not clear from the given context what information Jim and his team collected. However, assuming…
Q: How often is it for people to commit crimes online in the real world?
A: Here is your solution -
Q: Cloud or on-premises computing? Cloud computing risks and challenges? Cloud computing pros outweigh…
A: Cloud computing and on-premises computing both have their advantages and disadvantages. Ultimately,…
Q: Check Facebook and Twitter for your firm. Are they unique? How many organizations utilize online…
A: Facebook and Twitter can be powerful tools for firms to reach out to consumers and partners. These…
Q: Do you believe it's necessary to investigate cybercrime given your position as a researcher?
A: Cybercrime is any illegal act committed using a computer (Obuh & Babatope, 2011). Cybercrimes…
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Step by step
Solved in 2 steps
- 2019 AP® COMPUTER SCIENCE A FREE-RESPONSE QUESTIONS 2. This question involves the implementation of a fitness tracking system that is represented by the StepTracker class. A StepTracker object is created with a parameter that defines the minimum number of steps that must be taken for a day to be considered active. The StepTracker class provides a constructor and the following methods. addDailySteps, which accumulates information about steps, in readings taken once per day activeDays, which returns the number of active days averageSteps, which returns the average number of steps per day, calculated by dividing the total number of steps taken by the number of days tracked The following table contains a sample code execution sequence and the corresponding results. Statements and Expressions Value Returned Comment (blank if no value) StepTracker tr StepTracker(10000); Days with at least 10,000 steps are considered active. Assume that the parameter is positive. new tr.activeDays () ; No…Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…Computer Science You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date d, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email and ArrayList of Messages provide getters/setters, constructors, toString addMessage(Message m) method which will add new message to the list. Provide following options to the user using JFrame. Login which will help user login to the application. View Friends (Display List of All Friends) View Messages ( This should display all message of a Friend) Send message (This should ask for friend name and message match the friend name and write that message to the array list).
- Please help with the following: C# .NET change the main class so that the user is the one that as to put the name in other words. Write a driver class that prompts for the person’s data input, instantiates an object of class HealtProfile and displays the patient’s information from that object by calling the DisplayHealthRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // Instance created holding 6 parameters which are field with value HealthProfile heartRate = new HealthProfile("James","Kill",1978, 79.5 ,175.5, 2021 ); heartRate.DisplayPatientRecord();// call the patient record method } CLASS HeartProfile------------------- public class HealthProfile { // attibutes which holds the following value private String _FirstName; private String _LastName; private int _BirthYear; private double _Height; private double _Weigth; private int _CurrentYear; public HealthProfile(string firstName, string lastName, int birthYear, double height, double wt, int…build a student class implement the student class with the following instance variables: * id * firstName *lastName *dateOfBirth * Major create an __init__ function adn initialize all the fields make the "major" an option field and set a default value to "undefined" create a setter and getter function for all these five variables create another function: "print_student_info()" which prints 5 pieces of information: id, first name, last name, date of birth, and major. Make sure to have proper formatting done for printing these 5 things. Use the student class Task 1: create an empty list named "all_students" Task 2: create a variable named "id" and initialize it to 100 (some default value to start with, next id would be 101) Task 3: ask the user for input "How many students:" Task 4: Now run a for loop based on that input number and do the following things for each iteration: - get input of student's first name, last name, date of birth, and major - user should be able to skip the…public class date { private int day; // from 1 to 31 private int month; // from 1 to 12 private int year; // from 2000 upwards public void advance (); // move to next day }; Implement a constructor that initializes new objects of date class to be set to the 1st of January 2000. Implement setters for day, month, and year. Implement the advance method, which moves to the next day, ensuring that all data members are updated appropriately.
- /*** This class describes a tweet. A tweet has a message in it, a unique ID,* a count of the number of likes, and a count of the number of times it* has been retweeted. In addition, the Tweet class will have a static * variable to count the total number of tweets to ever be created * (retweets don't count as a new tweet).* * You may NOT import any library class.* * **/public class Tweet { /*** This constructor creates a tweet with the given message.* Assume that the message is not null because only the tweet() method* from the TwitterUser class will call this constructor. There are* no length requirements on Tweets.* * The very first tweet to ever be created will have an ID of 0, the * next one will have 1, and so on and so forth. It may help you to use* the static count variable to set the ID. * * You will have to initialize other instance variables appropriately.* @param message the text of the tweet*/public Tweet(String message) {throw new UnsupportedOperationException("Implement…Instructions: Implement the Java class Customer by following the UML class diagram provided below. Implementation details: The class constructor must receive the arguments in the following order: String firstName, String lastName, String address, String cardNumber, int pin, String username The password must be generated inside the class constructor by the class method generatePassword(). The password to be generated must meet the following criteria: Must have at least one numeric character. Must have at least one lowercase character. Must have at least one uppercase character. Must have at least one special symbol among @#$% Password length to be generated is fixed and equal to 12. Do please use SecureRandom() class to achieve randomness during password generation. toString() return value format must be as follows:Customer [firstName='John', lastName='Monkey', cardNumber='11336688', pin='1234', username='j.monkey', password='zF$7zR#1lFAo', address='453 Manin st,…1 - Student class Make a class student (in student.py) that stores the following information for a student: Name (name) Student number (student_nr) Points per assignment (points_per_assignment) Exam grade (exam_grade) a) Behind each point of information is the name of the parameter to the initializer method. Store this information from the parameters in the object attributes with the same name. b) Add a method course_points() which returns the number of course points the student has gotten. Example: mary = Student("Mary", 15789613, [10, 9, 8, 10, 9, 10], 9)print(mary.course_points()) > 121 The calculation of the course points is explained in the course overview, course setup slides (Links to an external site.) and the first lectureLinks to an external site.. c) Add a method grade() which returns a the final grade of the student, rounded to nearest half (upwards, 6.75 -> 7). As per regulations, a 5.5 becomes a 6. If the student did not pass both the assignments (>= 95…
- class A {protected int x1,y1,z; public: A(a, b,c):x1(a+2),y1(b-1),z(c+2) { for(i=0; i<5;i++) x1++;y1++;z++;}}; class B {protected: int x,y; public: B(a,b):x(a+1),y(b+2) { for(i=0; i<5;i++) x+=2; y+=1;}}; class D:public B, virtual public A { private: int a,b; public: D(k,m,n): a(k+n), B(k,m),b(n+2),A(k,m,n) { a=a+1;b=b+1;}}; int main() (Dob(4,2,5);} what the values of x1,y1 and zdayType Class We will be working on a project that designs a class calendarType, so that a client program can use this class to print a calendar for any month starting Jan 1. 1900. An example of the calendar for September 2019 is: September 2019 Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 We will develop several classes which will work together to create a calendar. The first of these classes is called dayType which will manipulate a day of the week. The class dayType will store a day, such as Sun for Sunday. The class should be able to perform the following operations on an object of type dayType: a. Set the day. b. Print the day. c. Return the day. d. Return the next day. e.…CSC 1302: PRINCIPLES OF COMPUTER SCIENCE II Lab 6 How to Submit Please submit your answers to the lab instructor once you have completed. Failure to submit will result in a ZERO FOR THIS LAB. NO EXCEPTIONS. The class diagram with four classes Student, Graduate, Undergraduate, and Exchange is given. Write the classes as described in the class diagram. The fields and methods for each class is given below. Student Exchange Graduate Undergraduate Student: Fields: major (String) gpa (double) creditHours (int) Methods: getGpa: returns gpa getYear: returns “freshman”, “sophomore”, “junior” or “senior” as determined by earned credit hours: Freshman: Less than 32 credit hours Sophomore: At least 32 credit hours but less than 64 credit hours Junior: At least credit hours 64 but less than 96 credit hours Senior: At least 96 credit hours Graduate:…