Write a declaration for a java class named BallpointPen, using the variable names and method names mentioned below. Fill in the bodies of each method as well. The state of a ball-point pen with a retractable point can be represented by two values: Is the point of the pen exposed? How much ink remains in the pen? Operations on a pen include: Press the button at the end of the pen. Move the pen with the point held against a sheet of paper. Replace the pen’s cartridge. Determine how much ink remains in the pen.

Use Java program to add a method printReceipt to the CashRegister class. The method should print the prices of all purchased items and the total amount due. Hint: You will need to form a string of all prices. Use the concat method of the String class to add additional items to that string. To turn a price into a string, use the call String.valueOf(price). Also, the payment information will need to be the same as the price information.  Here is the CashRegister class: /**   A cash register totals up sales and computes change due.*/public class CashRegister{   private double purchase;   private double payment;    /**      Constructs a cash register with no money in it.   */   public CashRegister()   {      purchase = 0;      payment = 0;   }    /**      Records the sale of an item.      @param amount the price of the item   */   public void recordPurchase(double amount)   {      purchase = purchase + amount;   }    /**      Processes a payment received from the customer.      @param…

question for  Java  a class demo has three objects  Car car = new Car("make:Honda","color:Black",0.2);Car car2 = new Car("make:Ford","color:blue", 0.5);Car car3 = new Car("make:Tesla","color:silver",1.2); how to make a scanner to get speed from the user and add the speed with the last value of the object for example Honda (speed+0.2)