I need just question 6

Given the following code which displays the following GUI application: primarystage. settitle ( _ pane. addColumn (0, plateNol, brandt, ratet, addB) : pane. addColumn (1, plateNoTF, brandTF, rateTF); Scene scene = new Scene (pane); primarystage . setscene (scene); primarystage. show () 7 L/Missing Code (2): clicking on the button 1. Complete the first missing code to initialize the Ul controls. 2. Complete the second missing code such that when the user fills the required information and clicks on the button "Add Car", a Car will be added to myCompany. 1. Write the class Car which includes: a) 3 attributes: unique number plate (e.g. ABC123), brand (e.g. Toyota) and rental rate (e.g. \$20). b) a zero-arg constructor and a mutli-arg constructor. c) Getter for brand attribute and setter for rate attribute. d) tostring() method which overrides the Object's tostring() method. e) equals() method which overrides the Object's equals() method. f) compareTo() method which implements the Comparable's compareTo() method. You should use the number plate only in the comparison. 2. Write the class Company which includes: (add the necessary import statements) a) 2 attributes: Company name and ArrayList of Cars. b) one-arg constructor that accepts the Company name as an argument and create a new empty Arraylist of Cars. c) method addCar() that accepts a Car object as an argument and add it to the ArrayList with a confirmation message. It is not allowed to add the same Car twice and in this case an error message should be displayed. d) method brandFrequency() that accepts a brand (e.g. BMW) as an argument and returns how many cars in the company of this brand. e) method savelntoFile() which accepts a file name as an argument. It stores the Company name and information of all Cars in this file (each Car in a different line). For cars, they should be sorted in ascending order (according to the number plate). 3. Write a code to test your classes by performing the following tasks: a) create a Company object called myCompany where the Company name is "Car 4 u". . [5 marks] b) create 2 Cars and add them to myCompany using the method addCar() c) print how many cars of brand BMW are in the Company by calling the method brandFrequency() d) call the method savelntoFile() to save the required information