Create a RationalNumber (fractions) class like the one Provide the capabilities:Create a constructor that prevents a 0 denominator in a fraction, reduces or simplifies fractions that are not in reduced form and avoids negative denominators.
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| Create a RationalNumber (fractions) class like the one Provide the capabilities: Create a constructor that prevents a 0 denominator in a fraction, reduces or simplifies fractions that are not in reduced form and avoids negative denominators. |
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- Define a class named ComparableCirclethat extends Circle and implements Comparable. Draw the UML diagramand implement the compareTo method to compare the circles on the basis ofarea. Write a test class to find the larger of two instances of ComparableCircleobjects, and the larger between a circle and a rectangle.Add a constructor to the Point class that accepts another Point as a parameter and initializes this new Point to have the same (x, y) values. Use the keyword this in your solution.Define a Polygon interface that has methods area() and perimeter(). Then implement classes for Triangle, Quadrilateral, Pentagon, Hexagon, and Octagon, which implement this interface, with the obvious meanings for the area() and perimeter() methods. Also implement classes, IsoscelesTriangle, Equilateral- Triangle, Rectangle, and Square, which have the appropriate inheritance relationships. Finally, write a simple user interface, which allows users to create polygons of the various types, input their geometric dimensions, and then out- put their area and perimeter. For extra effort, allow users to input polygons by specifying their vertex coordinates and be able to test if two such polygons are similar ORIGINAL WORKS ONLY
- Create a class Fraction with two integer final fields: numeratorand denominator. Its constructor creates fractions when given valuesfor both, but it has to avoid fractions with null denominators by throwing aNullDenominatorExceptionDesign and implement a Java class named Book with two data members: title and price. The class should have suitable constructors, get/set methods, and the toString method. Design and implement another Java class named BookShelf which has an ArrayList data member named bookList to store books. The class should have suitable constructors, get/set methods, and the toString method, as well as methods for people to add a book (prototype: addBook(Book book)), remove a book (prototype: removeBook(Book book)), and search for a book (prototype: findBook(Book book)). Test the two classes by creating a Bookshelf object and five Book objects. Add the books to the bookshelf. Display the contents of the bookshelf. Test the removeBook and findBook methods as well. Take screenshots of your tests and submit them with your Java code (not the whole project)Extend the ItemToPurchase class to contain a new attribute. item_description (string) - Set to "none" in default constructor Implement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter. Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters Attributes customer_name (string) - Initialized in default constructor to "none" current_date (string) - Initialized in default constructor to "January 1, 2016" cart_items (list) Methods add_item() Adds an item to cart_items list. Has parameter ItemToPurchase. Does not return anything. remove_item() Removes item from cart_items list. Has a string (an item's name) parameter. Does not return anything. If item name cannot…
- Define a class name ComparableCircle that extends Circle and implements Comparable interface. Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area. Write a test class to find the larger of two instances of ComparableCircle objects.Create two classes of your choice (a parent and a child) and access their properties as shownaboveAnswer the given question with a proper explanation and step-by-step solution. The base class Pet has protected fields petName, and petAge. The derived class Cat extends the Pet class and includes a private field for catBreed. Complete main() to: create a generic pet and print information using printInfo(). create a Cat pet, use printInfo() to print information, and add a statement to print the cat's breed using the getBreed() method.
- Implement the following parking permit class using java It has a dependency on the car class, no need to implement the car class. Use the diagram for refrenceCan it be two classes, the Calculator class must instantiate the CalculatorFrame class and the CalculatorFrame class must be where the calculator gets built.Create a Cycle class, with subclasses Unicycle, Bicycle and Tricycle. Demonstrate that an instance of each type can be upcast to Cycle via a ride( ) method. Using the above Cycle hierarchy, add a balance( ) method to Unicycle and Bicycle, but not to Tricycle. Create instances of all three types and upcast them to an array of Cycle. Try to call balance( ) on each element of the array and observe the results. Downcast and call balance( ) and observe what happens.
