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Write a class Complex for complex number system. The class should have 2 fields for real and imaginary part. The class should have two methods:
- One takes 2 complex objects and returns their addition as a new complex object.
- Another takes 2 complex objects and returns their multiplication as a new complex objec
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- A java program, with a class Rectangle with attributes length and width , each of which defaults to 2. Providemethods that calculate the rectangle’s perimeter and area. It has set and get methods for bothlength and width . The set methods should verify that length and width are each floating-pointnumbers larger than 10.0 and less than 40.0. Write a program to test class Rectangle .Write a Java program with at least two classes. Use a circle object to represent it. The class must offer at least one (non-static) setter method and one (non-static) getter method. Implement at least one test that invokes the setter method and the corresponding getter method so that the value out == the value in. Also use assert.Equal(60, circle1.getCircumference(), 10); and assert.Equals(10, circle1.get Radius(), 0.1); for radiusWrite a JAVA program to model the kinds of people one finds in a university. The categories are students, teachers and teaching assistant (TAs). All these categories are kinds of Person (Person is abstract class. A teaching assistant (TA) is a student and a teacher as well. A person has a name (string). A student has grade point average GPA (between 0 to 4), the teacher has the number of scholarly papers he/she has published and the teacher assistant has the number of courses he/she assists. All the classes contain constructors with default arguments to fill all data spaces. Provide display method to print all data members of an object on the screen. Classes also contain a function called isSuccessful(). Students with a GPA over 3.5 are considered successful. This function returns true if someone is successful or false if not. In main(), define an array of Person class, which can point to students, teachers and teacher assistants. The program first asks the kind of person and then lets…
- Please write a Java program with at least two classes. Use a circle to represent it! The class should have at least one non-static setter method and one non-static getter. Implement at least one method test that invokes the setter method and the corresponding getter method so that the value out == the value in!Write a Java program with least two classes. Using the circle object to represent it. The class must have at least one (non-static) setter method and one (non-static) getter method. Implement at least on test that invokes the setter and getter method and the corresponding getter method so that the value out == the the value inDesign a Java class named LinearEquation for a 2-by-2 system of linear equations:ax + by = e x=(ed-bf)/(ad-bc)cx + dy = f y=(af-ec)/(ad-bc) The class contains:• Private double data fields a, b, c, d, e, and f.• A constructor with the arguments for a, b, c, d, e, and f.• Six getter methods for a, b, c, d, e, and f.• Methods getX() and getY() that return the solution for the equation.• A method named isSolvable() that returns true if ad - bc is not 0. The method isSolvable() willbe called in the main, if it returns true display the calculated values for x and y by calling getX()and getY(). If the call to isSolvable() returns false, display a message that “the equation has nosolution”. Write a Java program that prompts the user to enter a, b, c, d, e, and f and displays the result. After the valuesfor a through f are entered, create a LinearEquation object. Check to seeIf ad - bc is 0, report that “The equation has no solution”, otherwise print out the values for x and y.
- We have a parking office class for an object-oriented parking management system using java Add(implement) a method to the Parking Office class to return the collection of permit ids for a specific customer (getPermitIds(Customer)) using java I have attached two class diagrams with definitions of all related classes in our system (i.e car, customer, .....). N.B. Parking office methods in the class definition like register, getcustomer and addcharge have already been implemented, we just need an additional getPermitIds(Customer) method as mentioned above Explain your code in a few words Important- We have a method to return a collection of permit ids (getPermitIds), what we need is a method to return the collection of permit ids for a specific customer (getPermitIds(Customer))We have a parking office class for an object-oriented parking management system using java Add (implement )a method to the Parking Office c to return a collection of customer ids (getCustomerIds) using java I have attached two class diagrams with definitions of all related classes in our system (i.e car, customer, .....). N.B. Parking office methods in the class defination like register, getcustomer and addcharge have already been implemented, we just need an additional getcustomerID method as mentioned aboveMethods sum need to be created in one class, to find the sum of different type and number of variables. Explain using your own words, and with examples, the concept used to achieve this. USING JAVA PLZ, "OBJECT ORIENTED PROGRAMMING".
- Write a Rectangle class to represent rectangles, with two data fields (width, height) and four methods (input data, display data, calculate and return area, calculate and return perimeter). Write another class to test all methods of the Rectangle class.4.2.3: Method definition: Volume of a pyramid. Define a method pyramidVolume with double parameters baseLength, baseWidth, and pyramidHeight, that returns as a double the volume of a pyramid with a rectangular base. Relevant geometry equations: Volume = base area x height x 1/3Base area = base length x base width.(Watch out for integer division). import java.util.Scanner; public class CalcPyramidVolume { //answer goes here// public static void main (String [] args) { Scanner scnr = new Scanner(System.in); double userLength; double userWidth; double userHeight; userLength = scnr.nextDouble(); userWidth = scnr.nextDouble(); userHeight = scnr.nextDouble(); System.out.println("Volume: " + pyramidVolume(userLength, userWidth, userHeight)); }}Consider the following class Date, which represents a date using three ints for month, day and year: class Date { private: int month; int day; int year; public: Date() { month = day = year = 0; } Date(int m, int d, int y) { month = m; day = d; year = y; } bool operator==(Date); bool operator<(Date); }; Write an implementation for both overloaded operators. == should return true if the Date objects are equivalent and false if not. < should return true if the Date of the calling object (left object) comes before the parameter Date object (right object) and false if not. You may assume that all objects of class Date are valid, i.e. month is between 1 and 12, inclusive; day contains an appropriate day for the given month, and year can be anything. You do not need to demonstrate calling these operators.