Create a class Cola Vending Machine. This class is simulating a cola vending machine. It keeps track of how many cola bottles are in the class and how much one bottle costs. There should be a method sell Bottle which sells one bottle to a customer, decreases the amount of bottles left. There also is a method restock which sets the number of bottles to the number it is restocked to. Write a main method to test the functionality of the Cola Vending Machine machine.

public class CocaColaVending {

   private int numBottles;

   private double costPerBottle;

   public CocaColaVending(int numBottles, double costPerBottle) {

       this.numBottles = numBottles;

       this.costPerBottle = costPerBottle;

   }

   public int getNumBottles() {

       return numBottles;

   }

   public void setNumBottles(int numBottles) {

       this.numBottles = numBottles;

   }

   public double getCostPerBottle() {

       return costPerBottle;

   }

   public void setCostPerBottle(double costPerBottle) {

       this.costPerBottle = costPerBottle;

   }

   public void sellBottles(int numSold){

       int remainingStock = this.numBottles-numSold;

       setNumBottles(remainingStock);

   }

   public void restockBottles(int numRestock){

       int newStock = this.numBottles+numRestock;

       setNumBottles(newStock);

   }

}

THE TEST CLASS IS showing the functionality of the class is given in the explanation section

Explanation:

public class CocaColaVendingTest {

   public static void main(String[] args) {

       CocaColaVending vending = new CocaColaVending(1000,2.3);

              System.out.println("Intial Stock "+ vending.getNumBottles());

       vending.sellBottles(240);

       System.out.println("After Selling 240 bottles "+ vending.getNumBottles());

       vending.restockBottles(1000);

       System.out.println("After restocking 1000 bottles "+ vending.getNumBottles());

   }

}

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