打印数组列表 [英] Print ArrayList

问题描述

我有一个包含 Address 对象的 ArrayList.

I have an ArrayList that contains Address objects.

我如何打印这个 ArrayList 的值，这意味着我要打印出数组的内容，在这种情况下是数字.

How do I print the values of this ArrayList, meaning I am printing out the contents of the Array, in this case numbers.

我只能用这段代码打印出数组的实际内存地址:

I can only get it to print out the actual memory address of the array with this code:

for(int i = 0; i < houseAddress.size(); i++) {   
    System.out.print(houseAddress.get(i));
}  

推荐答案

list.toString() 已经足够了.

list.toString() is good enough.

接口 List 没有定义 toString() 的契约，但是 AbstractCollection 基类提供了一个有用的实现，ArrayList 继承了这个实现.

The interface List does not define a contract for toString(), but the AbstractCollection base class provides a useful implementation that ArrayList inherits.

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