如何从列表创建对象的二维数组？

Question

I would like to convert ArrayList into 2D array of Objects . List is something like

[[AD,ADCB, N], [AFC, Fund, Y], [IO, dfdfdfd, N]]

I would like to convert this List into array of objects and I would like to modify Y, N field into Boolean Values someting like

Object[] rowdata = {
    {AD, ADCB, Boolean.FALSE}, 
    {AFC, Fund, Boolean.TRUE}, 
    {IO, dffdfdf, Boolean.FALSE}}

after that I can stuff into JTable model and those boolean values will be visible as JCheckboxes .

What should be the best way to convert this list into 2D array of objects so that I can pass into JTable TableModel ?

Answer 1

In your example, you show that there are three members of each object that you want to store. So, if N is the number of items in your arraylist, you need a multidimensional array of N * 3. ie:

Object[][] table = new Object[list.size()][3];

Then you're going to use a for loop, to cycle through each object in the list:

for(int x = 0; x < list.size(); x++)
{
     Object currentObject = list.get(x);
     table[x][0] = currentObject.getValue();
     // Load the first value.
     ...
     table[x][2] = currentObject.getYorN().equalsIgnoreCase("Y")? true:false;
     // Embed a selection statement to decide if to store true or false.
}