Solution Review: Implement the Derived Class

// Base Class
class Vehicle {
  // Private Data Members
  private String speed;
  private String model;
  public Vehicle() { // Default Constructor
    speed = "100";
    model = "Tesla";
  }
  // Getter Function
  public String getSpeed() {
    return speed;
  }
  // Getter Function
  public String getModel() {
    return model; 
  }
  
}
// Derived Class
class Car extends Vehicle { 
  public String name; //  Name of a Car
  public Car() { // Default Constructor
    name = "";
  }
  // This function sets the name of the car
  public void setDetails(String name) { // Setter Function
    this.name = name;
  }
  // This function calls the Base class functions and append the result with input 
  public String getDetails(String carName) {
    String details = carName + ", " + getModel() + ", " + getSpeed(); // calling Base Class Function
    return details;
  } 
  public static void main(String args[]) {
    Car car = new Car();
    System.out.println(car.getDetails("X"));
  }
  
}