Car.java

package builder;

import java.util.ArrayList;
import java.util.List;

public class Car {
    private String make;
    private String name;
    private String color;
    private int model;
    private List<String> countriesPresent = new ArrayList<>();

    public void setMake(String make) {
        this.make = make;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public void setModel(int model) {
        this.model = model;
    }

    public void setCountriesPresent(List<String> countriesPresent) {
        this.countriesPresent = countriesPresent;
    }

    @Override
    public String toString() {
        return String.format(
                "{ make = %s, name = %s, color = %s, model = %s , countriesPresent = %s }",
                make,
                name,
                color,
                model,
                countriesPresent
        );
    }

    /**
     * New Code added
     */
    public Car(String make, String name, String color, int model, List<String> countriesPresent) {
        this.make = make;
        this.name = name;
        this.color = color;
        this.model = model;
        this.countriesPresent = countriesPresent;
    }

    /**
     * This no-args constructor is created by the compiler if no constructor is created (created only when we don't declare any constructor),
     * Once a constructor is created, like the all args constructor above,
     * Then, this constructor does not exist, so to keep the first section of using setter working,
     * we create this constructor ourselves
     */
    public Car(){}
}

Main.java

package builder;

import java.util.List;

public class Main {
   public static void main(String[] args){
       Car car1 = new Car();
       car1.setMake("Tesla");
       car1.setName("Model X");
       car1.setModel(2020);
       car1.setColor("Blue");
       car1.setCountriesPresent(List.of("USA", "Germany", "China"));

       System.out.println("No args constructor --> "+car1);

       Car car2 = new Car("Toyota", "Fortuner",  "Grey", 2021, List.of("Canada", "South Korea", "Egypt"));
       System.out.println("All Args Constructor --> "+ car2);
   }
}