如何从 ArrayList 打印对象值 [重复]

Question

将对象添加到 ArrayList 后，有没有办法打印 ArrayList 中对象的值？

我有一个包含 getMake()、getModel() 和 getPrice() 的类，但在将对象添加到 ArrayList 后我不知道如何使用它们。

    Car car1 = new Car("make1", "model1", 40000);
    Car car2 = new Car("make2", "model2", 200000);
    Car car2 = new Car("make3", "model3", 100000);

    ArrayList<Car> cars = new ArrayList<Car>();

    cars.add(car1);
    cars.add(car2);
    cars.add(car3);

Answer 1

您的 Car 类必须覆盖 Object#toString()

public class Car {
    private String make;
    private String model;
    private int price;

    // your code here

    @Override
    public String toString() {     return "Make: " + make +  ", Model:" + model + ", Price: " + price;

    }
}