Design a class named StopWatch. The class contains:■■ Private data fields startTime and endTime with getter methods.■■ A no-arg constructor that initializes startTime with the current time.■■ A method named start() that resets the startTime to the current time.■■ A method named stop() that sets the endTime to the current time.■■ A method named getElapsedTime() that returns the elapsed time for thestopwatch in milliseconds.Draw the UML diagram for the class then implement the class. Write a test programthat measures the execution time of sorting 100,000 numbers using selection sort.
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Design a class named StopWatch. The class contains:
■■ Private data fields startTime and endTime with getter methods.
■■ A no-arg constructor that initializes startTime with the current time.
■■ A method named start() that resets the startTime to the current time.
■■ A method named stop() that sets the endTime to the current time.
■■ A method named getElapsedTime() that returns the elapsed time for the
stopwatch in milliseconds.
Draw the UML diagram for the class then implement the class. Write a test program
that measures the execution time of sorting 100,000 numbers using selection sort.
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- Design a class named StopWatch. The class contains:■ The private data fields startTime and endTime with get methods.■ A constructor that initializes startTime with the current time.■ A method named start() that resets the startTime to the current time.■ A method named stop() that sets the endTime to the current time.■ A method named getElapsedTime() that returns the elapsed time for thestop watch in milliseconds.Draw the UML diagram for the class, and then implement the class. Write a test program that measures the execution time of adding numbers from 1 to 1,000,000.1. Part 1: A point in the x-y plane is represented by its x-coordinate and y-coordinate. Design the class Point that can store and process a point in the x-y plane. Your class should contains the following methods. Default constructor without parameters that initializes the private data member to the suitable values Constructor with parameters sets the values of the instance variables to the values of the parameter. Accessor methods that return the values of the x-axis and y-axis. setPoint method which set the values of x-axis and y-axis makeCopy method that make a copy of a received object of type Point. getCopy method that returns a copy of the current object toString method that returns the object string isEqual that returns true if the current object is equal to the received object of type point distance, which receives two objects of type Point and returns the distanceTemp Class - Create Temp class whos job is to hold a temp in degrees F and gives methods to get the temp in F, Celsius, and Kelvin. The class should follow the instance variable (field): ftemp (double type that holds F temp)Follow these methods with the class.. Constructor --Will accept Fahrenheit temperature as a double to store it in the ftemp field. setFahrenheit - The setFahrenheit method accepts a Ftemperature as a doubleto stores it in the ftemp field. getFahrenheit - Returns the value of the ftemp field, as a Fahrenheit temperature (no conversion required). getCelsius - Returns the value of the ftemp field converted to Celsius. [C e l s i u s = ( 5.0 / 9.0 ) × ( F a h r e n h e i t − 32 )] getKelvin - Returns the value of the ftemp field converted to Kelvin. [K e l v i n = ( ( 5.0 / 9.0 ) × ( F a h r e n h e i t − 32 ) ) + 273] Exemplify the temp class by writing a (test) program that is separate and promotes users for an F Fahrenheit temp. The program must create an…
- Design a class named MyInteger. The class contains: ■ An int data field named value that stores the int value represented by this object. ■ A constructor that creates a MyInteger object for the specified int value. ■ A get method that returns the int value. ■ The methods isEven(), isOdd(), and isPrime() that return true if the value in this object is even, odd, or prime, respectively. ■ The static methods isEven(int), isOdd(int), and isPrime(int) that return true if the specified value is even, odd, or prime, respectively. ■ The static methods isEven(MyInteger), isOdd(MyInteger), and isPrime(MyInteger) that return true if the specified value is even, odd, or prime, respectively. ■ The methods equals(int) and equals(MyInteger) that return true if the value in this object is equal to the specified value. ■ A static method parseInt(char[]) that converts an array of numeric characters to an int value. ■ A static method parseInt(String) that converts a string into an int value. Draw the UML…Design a class named MyInteger. The class contains:■■ An int data field named value that stores the int value represented bythis object.■■ A constructor that creates a MyInteger object for the specified int value.■■ A getter method that returns the int value.■■ The methods isEven(), isOdd(), and isPrime() that return true if thevalue in this object is even, odd, or prime, respectively.■■ The static methods isEven(int), isOdd(int), and isPrime(int) thatreturn true if the specified value is even, odd, or prime, respectively.■■ The static methods isEven(MyInteger), isOdd(MyInteger), andisPrime(MyInteger) that return true if the specified value is even, odd,or prime, respectively.■■ The methods equals(int) and equals(MyInteger) that return true ifthe value in this object is equal to the specified value.■■ A static method parseInt(char[]) that converts an array of numericcharactersto an int value.■■ A static method parseInt(String) that converts a string into an int value.Draw the UML…is a construct that defines objects of the same type. A class An object A method A data field
- 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…Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get A data field radius with a get A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. A constructor that creates a circle with the specified x, y, and radius. A method getArea() that returns the area of the circle. A method getPerimeter() that returns the perimeter of the circle. A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure 10.14(a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure 10.14(b). A method overlaps(Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. (a) (b) (c) Figure 10.14 (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another circle. Draw…Design a class named MyPoint to represent a point withx- and y-coordinates. The class contains:■■ The data fields x and y that represent the coordinates with getter methods.■■ A no-arg constructor that creates a point (0, 0).■■ A constructor that constructs a point with specified coordinates.■■ A method named distance that returns the distance from this point to aspecified point of the MyPoint type.■■ A method named distance that returns the distance from this point toanother point with specified x- and y-coordinates.■■ A static method named distance that returns the distance from two MyPointobjects.Draw the UML diagram for the class then implement the class. Write a testprogram that creates the two points (0, 0) and (10, 30.5) and displays the distancebetween them.
- Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get methods. A data field radius with a get method. A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. A constructor that creates a circle with the specified x, y, and radius. A method getArea() that returns the area of the circle. A method getPerimeter() that returns the perimeter of the circle. A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure 10.14(a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure 10.14(b). A method overlaps(Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. Figure (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another circle. Draw the UML diagram for the class.…Rectangle Object Monitoring Create a Rectangle class that can compute the total area of all the created rectangle objects using static fields (variables). Remember that a Rectangle has two attributes: Length and Width. Implement the class by creating a computer program that will ask the user about three rectangle dimensions. The program should be able to display the total area of the three rectangle objects. For this exercise, you are required to apply all OOP concepts that you learned in class. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Enter Length R3: 3 Enter Width R3: 3 The total area of the rectangles is 14.00 Note: All characters in boldface are user inputs.Java - Constructors Create a class named Book that has the following attributes: Publisher - String Year Published - Integer Price - Double Title - String Create a constructor for the class Book that has the parameters from the attributes of the class. After, create a method for the class that displays all attributes. Ask the user for inputs for the attributes and use the constructor to create the object. Lastly, print the values of the attributes. Inputs 1. Publisher 2. Year Published 3. Price 4. Book Title XYZ Publishing 2020 1000.00 How to Win? Sample Output Published: ABC Publishing Year Published: 2022 Price: 150.00 Book Title: Stooping too low Stooping too low is published by ABC Publishing on 2022. It sells at the price of Php150.00.