title: incompatible types - int cannot be converted in to java.lang.string -java - bluej
body: <p>So as a part of java assignment - i am required to make CarRent Project - i am quite new to java - i am using blueJ - i am receiving an error that has confused me a bit - looking for some guidance </p>
  
  <pre><code>    import java.util.ArrayList;
      import java.util.ArrayList; 
      import java.awt.*;
      import javax.swing.*;
      import java.util.ArrayList;
      import java.awt.event.ActionEvent;
      import java.awt.event.ActionListener;
      import java.util.Iterator;
      import java.lang.String; 
  
  
  @author Mohsin
  
  public class CarCompany implements ActionListener{
  
    private JFrame frame;
    private Container contentPane;
    private JLabel descriptionLabel;
    private JTextField descriptionTextField;
    private JLabel downPayLabel;
    private JTextField downPayTextField;
    private JLabel dailyRateLabel;
    private JTextField dailyRateTextField;
    private JLabel priceLabel;
    private JTextField priceTextField;
    private JLabel yearOfRegLabel;
    private JTextField yearOfRegTextField;
    private JLabel mileageLabel;
    private JTextField mileageTextField;
    private JLabel customerNameLabel;
    private JTextField customerNameTextField;
    private JLabel dateOfHireLabel;
    private JTextField dateOfHireTextField;
    private JLabel dateOfReturnLabel;
    private JTextField dateOfReturnTextField;
    private JLabel numberOfDaysLabel;
    private JTextField numberOfDaysTextField;
    private JLabel carNumberLabel;
    private JTextField carNumberTextField;
  
    private JButton addCarToRentButton;
    private JButton addCarToBuyButton;
    private JButton clearButton;
    private JButton displayAllButton;
    private JButton rentCarButton;
    private JButton sellCarButton;
  
    private ArrayList &lt;CAR&gt;carList;
  
     public static void main(String[] args){
      CarCompany company = new CarCompany();
    }
  
  
      public CarCompany(){
  
      carList = new ArrayList&lt;CAR&gt;()
  
      frame = new JFrame("Car Company");
      Container contentPane = frame.getContentPane();
      contentPane.setLayout(new GridLayout(5,6));
  
      JLabel descriptionLabel = new JLabel("Description");         //(1) the 
       description
      contentPane.add(descriptionLabel);
  
      contentPane.add(descriptionTextField);
  
  
      JLabel downPayLabel = new JLabel("Down Payment");           //(2) the 
      down payment
      contentPane.add(downPayLabel);
  
      contentPane.add(downPayTextField);
  
      JLabel dailyRateLabel = new JLabel("Daily Rate");           //(3) the 
      daily rate
      contentPane.add(dailyRateLabel);
  
      contentPane.add(dailyRateTextField);
  
      JLabel priceLabel = new JLabel("Price");                    //(4) the 
       price
      contentPane.add(priceLabel);
  
      contentPane.add(priceTextField);
  
      JLabel yearOfRegLabel = new JLabel("Year Of Registration"); //(5) the 
      year of registration
      contentPane.add(yearOfRegLabel);
  
      contentPane.add(yearOfRegTextField);
  
      JLabel mileageLabel = new JLabel("mileage");                  //(6) the 
      mileage
      contentPane.add(mileageLabel);
  
      contentPane.add(mileageTextField);
  
      JLabel customerNameLabel = new JLabel("Customer Name");     //(7) the 
      customer name
      contentPane.add(customerNameLabel);
  
      contentPane.add(customerNameTextField);
  
      JLabel dateOfHireLabel = new JLabel("Date Of Hire");        //(8) the 
      date of hire
      contentPane.add(dateOfHireLabel);
  
      contentPane.add(dateOfHireTextField);
  
      JLabel dateOfReturnLabel = new JLabel("Date Of Return");    //(9) the 
      date of return
      contentPane.add(dateOfReturnLabel);
  
      contentPane.add(dateOfReturnTextField);
  
      JLabel numberOfDaysLabel = new JLabel("Number Of Days");    //(10) the 
      number of days
      contentPane.add(numberOfDaysLabel);
  
      contentPane.add(numberOfDaysTextField);
  
      JLabel carNumberLabel = new JLabel("Car Number");           //(11) the 
      car number (its position in an array list of cars)
      contentPane.add(carNumberLabel);
  
      contentPane.add(carNumberTextField);
  
      JButton addCarToRentButton = new JButton("Add Car To Rent"); 
      contentPane.add(addCarToRentButton);
  
      JButton addCarToBuyButton = new JButton("Add Car To Buy"); 
      contentPane.add(addCarToBuyButton);
  
      JButton rentCarButton = new JButton("Rent Car");
      contentPane.add(rentCarButton);
  
      JButton sellCarButton = new JButton("Sell Car");
      contentPane.add(sellCarButton);
  
      JButton clearButton = new JButton("Clear"); 
      contentPane.add(clearButton);
  
      JButton displayAllButton = new JButton("Display All Cars");
      contentPane.add(displayAllButton);
  
      frame.pack();
      frame.setVisible(true);
  
  
      clearButton.addActionListener(this);
      addCarToRentButton.addActionListener(this);
      addCarToBuyButton.addActionListener(this);
      displayAllButton.addActionListener(this);
      rentCarButton.addActionListener(this);
      sellCarButton.addActionListener(this);
  
      }
  
  
      public void addCarToRent(){
  
      CarToRent newCar = new CarToRent(descriptionTextField.getText(), 
      getDownPayment(),
      getDailyRate());
  
      carList.add(newCar);
       }
  
  
  
        /* Add Car To Sell
  
      public void addCarToSell(){  //error is here getPrice -
  
      CarToBuy newCar = new CarToBuy(getPrice(),getYearOfRegistration(),
      getMileage(), descriptionTextField.getText());
  
      carList.add(newCar);
      }
  
  
      public void rentCar(){
      CarToRent thisCar;
  
      thisCar = (CarToRent) carList.get(getCarNumber());
  
      thisCar.rentCar(customerNameTextField.getText(), 
      dateOfHireTextField.getText(), dateOfReturnTextField.getText(),
      getNumberOfDays());
  
      }
  
      /* Return a car
  
      public void returnCar(){
      CarToRent thisCar = (CarToRent) carList.get(getCarNumber());
      thisCar.returnCar();
      }
  
  
      public void sellCar(){
      CarToBuy thisCar = (CarToBuy) carList.get(getCarNumber());
  
          if (carList.size() &gt;= getCarNumber() &amp;&amp; getCarNumber()&gt;=0 &amp;&amp; thisCar 
          instanceof CarToBuy){   
          thisCar = (CarToBuy) carList.get(getCarNumber());
          thisCar.sellCar(customerNameTextField.getText());
          }
        }
  
       public void displayAll(){   // Displays all the information relating to 
       properties is displayed
       for (CAR thisCar: carList)
        {
          if (thisCar instanceof CarToRent){
              CarToRent carToRent =(CarToRent)thisCar;
              carToRent.displayDetails();
          }
          else if (thisCar instanceof CarToBuy){
              CarToBuy carToBuy =(CarToBuy)thisCar;
              carToBuy.displayDetails();
        }
  
        }
       }
  
  
  
      public void actionPerformed(ActionEvent event){
  
      String command = event.getActionCommand();
  
      if (command.equals("Add Car To Rent")){
          addCarToRent();
      }
  
      else if (command.equals("Add Car To Buy")){
          addCarToSell();
      }
  
      else if (command.equals("Clear")){
          clear();
      }
  
      else if (command.equals("Display All Cars")){
          displayAll();
      }
  
      else if (command.equals("Rent Car")){
          rentCar();
      }
  
      else if (command.equals("Sell Car")){
          sellCar();
      }
  
     }
  
  
      public void clear(){    // Clears text from all eleven text fields
  
      descriptionTextField.setText("");
      downPayTextField.setText("");
      dailyRateTextField.setText("");
      priceTextField.setText("");
      yearOfRegTextField.setText("");
      mileageTextField.setText("");
      customerNameTextField.setText("");
      dateOfHireTextField.setText("");
      dateOfReturnTextField.setText("");
      numberOfDaysTextField.setText("");
      carNumberTextField.setText("");
     }
  
     //*****accessors
  
     public int getDailyRate(){
      return Integer.parseInt(dailyRateTextField.getText());
     }
  
     public int getDownPayment(){
     return Integer.parseInt(downPayTextField.getText());
      }
  
  
  
      public int getNumberOfDays(){
      return Integer.parseInt(numberOfDaysTextField.getText());
      }
  
      public int getMileage(){
      return Integer.parseInt(mileageTextField.getText());
       }
  
      public int getYearOfRegistration(){
      return Integer.parseInt(yearOfRegTextField.getText());
      }
  
      public int getCarNumber(){
      return Integer.parseInt(carNumberTextField.getText());
      }
  
      public int getPrice(){
      return Integer.parseInt(priceTextField.getText());
      } 
      }
  </code></pre>
  
  <p>just in case the code is to long to read : int cannot be converted into 
  java lang.String is the error when hovering over getPrice()</p>
  
  <pre><code>    public void addCarToSell(){
      CarToBuy newCar = new CarToBuy(getPrice(),getYearOfRegistration(),
      getMileage(), descriptionTextField.getText());
  
      carList.add(newCar);
  }
  </code></pre>