将对象添加到自定义类的 Array [英] Add an object to an Array of a custom class

问题描述

我是 Java 的初学者，我正在尝试创建一个自定义类的数组.假设我有一个名为 car 的类，我想创建一个名为 Garage 的汽车数组.如何将每辆车添加到车库?这就是我所拥有的:

Im a beginner to Java and I'm trying to create an array of a custom class. Let say I have a class called car and I want to create an array of cars called Garage. How can I add each car to the garage? This is what I've got:

car redCar = new Car("Red");
car Garage [] = new Car [100];
Garage[0] = redCar;

推荐答案

如果你想使用数组，你必须保留一个包含车库中汽车数量的计数器.最好使用 ArrayList 而不是数组:

If you want to use an array, you have to keep a counter which contains the number of cars in the garage. Better use an ArrayList instead of array:

List<Car> garage = new ArrayList<Car>();
garage.add(redCar);

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