(Triangle class) Design a new Triangle class that extends the abstract Geometricobject class. Draw the UML diagram for the classes Triangle and Geometricobject then implement the Triangle class. Write a test program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to indicate whether the triangle is filed. The program should create a Tri- angle object with the se sides, and set the color and filled properties using the input. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not.

(Triangle class) Design a new Triangle class that extends the abstract GeometricObject class. Draw the UML diagram for the classes Triangle and GeometricObject and then implement the Triangle class. Write a test program that prompts the user to enter three sides of the triangle, a colour, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the colour and filled properties using the input. The program should display the area, perimeter, colour, and true or false to indicate whether it is filled or not.

[JAVA] Question 4: Write the source code of the classes ReportCurrentRevenue and ReportPastIncome. The ReportCurrentRevenue class is responsible from calculating the current amount of money to be gained if all the guests would leave from the hotel. The ReportPastIncome class is responsible from calculating the money gained so far from the previous visits of guests. Class Hotel will create one instance of this class and execute it in multithreaded fashion in its report method. You will code Hotel.report in the next question. Question 5: Write the source code of only the following methods of the class Hotel. The explanations of the methods you need to code are given below. Don’t forget to address the multithreading issues when coding. report: The details of this method are given in Question 4. restore: This method loads the Hashtable members and LinkedList visits from the path given by the fileName parameter. However, if there are ongoing multithreaded operations, it must first wait…

(JAVA) Create a class hierarchy to represent the different types of employees in an office who have the following job titles: manager, assistant, salesperson. Write an abstract base class called Employee that declares an abstract method: signature double calculateSalary() This class must also define the following attributes: name (String type), enrollment (String type) and base_salary (double type). Use encapsulation and provide a constructor that receives the corresponding values ​​to be stored in the respective attributes. This abstract class must be extended by the other classes representing the types of employees, so the classes Manager, Assistant and Salesperson must be written. In each class you must override the method calculateSalario so that the salary calculation is done like this: The manager receives twice the base_salary, the assistant receives the base_salary and the salesperson receives the base_salary plus a commission defined in the constructor of his class. Create a…

LocalResource(String date, String sector)- Actions of the constructor include accepting a date in the format “dd/mm/yyyy”, initializing the base class, storing the sector and storing an id as a consecutively increasing integer. Note that the constructor must ensure that the date of birth information is recorded. b. getId():Integer - returns the ID of the current instance of LocalResource c. getSector():String – returns the sector associated with the current instance of localResource d. getTRN():String – returns the trn number of the current instance of LocalResource. The process used to determine the TRN is to add the id to the number 100000000 and then returning the string equivalent. e. Update the NineToFiver class to ensure it properly extends the LocalResource class f. In method getContact() of NineToFiver, remove the comments so that the method returns "Local Employee #"+and the id of the contact. Write a concrete class LocalConsultant that extends LocalResource, and implements…

Question 5 (6 marks) Given the following interface class interface Bigoperation { public Biglnteger operation (Biglnteger x, Biglnteger y); Write Lambda expressions to implement BigOperation to simulate three arithmetic operations *, / and % on Biglnteger. You can call them op1, op2 and op3 respectively. Note that the three operations in Biglnteger are called multiply, divide and remainder respectively. Using these three operations, we wish to multiply all the digits in a Biglnteger. For example, if the Biginteger is 234, the product is 2* 3*4 = 24. The method has the following method heading: static BigInteger product (Biglnteger n, BigOperation op1, BigOperation op2, BigOperation op3) Compare the implementation of this method using two approaches: Iterative and Recursive. Put the Lambda expressions in a main method. Construct a few Biglnteger objects, invoke the methods to test our design. The following shows some of the sample outputs:

5 (The Time class) Design a class named Time. The class contains: ■ Data fields hour, minute, and second that represent a time. ■ A no-arg constructor that creates a Time object for the current time. ■ A constructor that constructs a Time object with a specified elapse time since the middle of night, Jan 1, 1970, in seconds. ■ A constructor that constructs a Time object with the specified hour, minute, and second. ■ Three get functions for the data fields hour, minute, and second. ■ A function named setTime(int elapseTime) that sets a new time for the object using the elapsed time. Draw the UML diagram for the class. Implement the class. Write a test program that creates two Time objects, one using a no-arg constructor and the other using Time (555550), and display their hour, minute, and second. (Hint: The first two constructors will extract hour, minute, and second from the elapse time. For example, if the elapse time is 555550 seconds, the hour is 10, the minute is 19, and the…

C++ Program: Random Number Guesser. Write a derived class of the NumberGuesser class named RandomNumberGuesser.  The derived class should override the behavior of the getCurrentGuess method.  It may also add member data and its own constructor.  It may also override the higher(), lower() and reset() methods as you see fit. To get everyone started off on the same page I have written a NumberGuesser class.  It is defined entirely in-line in the following file: NumberGuesser.h (Links to an external site.) https://fog.ccsf.edu/~mluttrel/cs110b/NumberGuesser.h   In the current NumberGuesser class the getCurrentGuess() method returns the midpoint of the range of possible values.  In your RandomNumberGuesser class the getCurrentGuess() method should return a randomly generated number in the range of possible values. Note that repeated calls to getCurrentGuess() should always return the same value for both classes if neither the higher() or the lower() functions are called. Consider the…

(The Account class)       Account   -id: int -balance: double -annualInterestRate : double -dateCreated : Date   +Account( ) +Account(someId : int, someBalance : double) +getId() : int +setId(newId : int) : void +getBalance() : double +setBalance(newBalance : double) : void +getAnnualInterestRate( ) : double +setAnnualInterestRate(newRate : double) : void +getDateCreated( ) : Date +getMonthlyInterestRate( ) : double +getMonthlyInterest( ) : double +withdraw(amt : double) : void +deposit(amt : double) : void         Design a class named Account that contains: ■ A private int data field named id for the account (default 0). ■ A private double data field named balance for the account (default 0). ■ A private double data field named annualInterestRate that stores the current interest rate (default 0). Assume all accounts have the same interest rate.  Make it static. ■ A private Date data field named dateCreated that stores the date when the account was created.  (private Date dateCreated)…