Visualizer - Create Entity classes

use caching system to retrieve the data to dropdowns o load unique values of the model field from instances of the Car class into a method, you can follow these steps:

Retrieve instances of the Car class from your data source (e.g., database). Extract the model field value from each instance. Collect unique values into a set or list. Use this set or list in your method. Here's how you can implement it:

Suppose you have a Car class with a field named model:

java Copy code public class Car { private String model;

public Car(String model) {
    this.model = model;
}

public String getModel() {
    return model;
}

} Now, you want to load unique values of the model field into a method. Here's how you can do it:

java Copy code import java.util.HashSet; import java.util.List; import java.util.Set;

public class CarService {

public Set<String> getUniqueCarModels(List<Car> cars) {
    Set<String> uniqueModels = new HashSet<>();

    // Iterate over each Car instance and add its 'model' field value to the set
    for (Car car : cars) {
        uniqueModels.add(car.getModel());
    }

    return uniqueModels;
}

// Example usage
public static void main(String[] args) {
    // Assume you have a list of Car instances
    List<Car> cars = /* Retrieve cars from data source */;

    CarService carService = new CarService();
    Set<String> uniqueCarModels = carService.getUniqueCarModels(cars);

    // Now 'uniqueCarModels' contains unique values of the 'model' field
    System.out.println("Unique car models: " + uniqueCarModels);
}

} In this example:

The getUniqueCarModels method takes a list of Car instances as input and returns a set of unique model field values. It iterates over each Car instance in the list and adds its model field value to a HashSet. As HashSet does not allow duplicate values, you'll get a set of unique model values. You can now use the getUniqueCarModels method to retrieve unique model values from your Car instances.

Adeeshaj / carvestor-visualizer

Visualizer - Create Entity classes #20