将 ArrayList 转换为二维数组
Java 中如何将 ArrayList 转换为二维数组 Object[][]?
In Java how do you convert a ArrayList into a two dimensional array Object[][]?
来自评论:我将更详细地向您描述问题:XML 文件包含联系人列表(例如姓名、地址...).我能获得这些信息的唯一方法是通过一个 ArrayList,它将提供给我.由于我需要以有序的方式将此数组列表的内容存储在 Java Swing 表中,因此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
我设法找到了一种方法",知道每个联系人具有的属性数量 (6).所以考虑一个 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());
}
}