转换一个ArrayList到一个二维数组 [英] Converting an ArrayList into a 2D Array

问题描述

在Java中，你如何转换的ArrayList到一个二维数组对象[] []？

In Java how do you convert a ArrayList into a two dimensional array Object[][]?

从意见：我会形容你的问题更多的细节：一个XML文件包含的联系人列表（如姓名，地址......）。我能得到这个信息的唯一方式是通过一个ArrayList，这将是给我的。因为我需要这个数组列表的在Java Swing表内容存储在一个有序的方式，我想将其转换为对象的二维数组

From comments: I will describe you the problem with more details: an XML file includes a list of contacts (e.g. name, address...). The only way I can obtain this information is through an ArrayList, which will be given to me. As I need to store the content of this array list in a Java Swing table in an ordered manner, I was thinking to convert it into a two dimensional array of objects

推荐答案

我设法找到办法这样做，知道属性的数量每个触点有（6）。所以考虑一个的ArrayList listofContacts

I managed to find "a way" to do so, knowing the number of attributes each contacts has (6). So considering an ArrayList listofContacts

    int numberOfContacts = listofContacts.size()/6;
    Object[][] newArrayContent = new Object[numberOfContacts][6];

    for(int x = 0; x<numberOfContacts; x++){
        for(int z = 0; z < 6; z++){
        int y = 6 * x;
        newArrayContent [x][z] = list.get(y+z); 
        System.out.println(newArrayContent [x][z].toString());
        }
    }

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