Car class + Car App

Car.java

public class carClass{
	
	public class Car{

	private String brand;
	private double pricePerDay;
	private int availablity;

		public Car(String brand, double pricePerDay int availablity){
			this.availablity = availablity;
			this.pricePerDay = pricePerDay;
			this.brand = brand;
		}

		public String getBrand(){
			return this.brand;
		}
	
		public void setBrand(String brand){
			this.brand = brand;
		}

		public double getpricePerDay(){
			return this.pricePerDay;
		}

		public void setPricePerDay(double pricePerDay){
			this.pricePerDay = pricePerDay;
		}

		public int getavailablity(){
			return this.availablity;
		}

		public void setAvailability(int availablity){
			this.availablity = availablity;
		}
}

carApp.java

import.java.util.Scanner;
import.java.io.*;

public class carApp;
public static void main(String[] args) {

	Random rndm = new Random();
	String datbrand = " ";
	double datPrice = 0;
	int datAvailability = 0;
	Car[] vehicles = new Car[100];

	String[] brands = {"Ford", "Land Rover", "Audi", "Mercedes", "BMW", "Maserati", "Tesla", "Mitsubishi", "Acura", "Citröen"};

	double[] price = {4, 23, 7, 96, 666, 420, 808, 333};

	int[] availability = {0, 1, 2, 3, 4, 5, 6, 7};


		for(int a=0; a<100; a++){
			datbrand = brands[number.nextInt(10)];
			datPrice = price[number.nextInt(10)];
			datAvailability = availability[number.nextInt(10)];
 
		Car carro = new Car(thebrand, theprice, theavailability);
		 
		vehicles[a] = automobile;

			int carnmbr = findCar(vehicles);
			rentCar(vehicles, carnmbr);
		 
		}
 

	//method 2.1
	public boolean findCar(){

		Scanner input = new Scanner(System.in);
		//search cars for first available
		boolean bateado;
		char acceptOrReject;

			for (int i=0; i<99; i++){
				
				if (cars[i]=0){
					System.out.println("Car" + i + "is available for rent. Do you wish to rent it (Type 'y' or 'n'?");
					acceptOrReject = input.nextln()
					if (acceptOrReject.charAt(0) = n){
							 bateado = true;
							 i += i;
					}
					else if (acceptOrReject.charAt(0) = n){
							bateado = false;
					}
					else break;

					return bateado;

				}
			}
		}
	
	//method 2.2
	public static rentCar(Cars[] vehic, int carnmbr){
 
		Scanner input = new Scanner(System.in);
		 
		System.out.println("For how many days do you want to rent the car?");			
		int rent = input.nextInt();
			 
		vehicles[carnmbr].setAvailability(rent);
}

}

readAndWrite.java

public static readAndWrite{



File inputFile = new File(carApp);
byte[] data = new byte[inputFile.length()];
FileInputStream fis = new FileInputStream(inputFile);
fis.read(data, 0, data.length);
fis.close();

FileOutputStream fos = new FileOutputStream
fos.write(data, 0, data.length);
fos.close();

}