Question

I have two Sets of Strings, with each in the following format:

Set1(Names)  Set2(Sizes)

Pics         450 KB
Videos       50 MB
Music        32 MB

The two Sets are LinkedHashSets, so order is guaranteed. The Sets are also guaranteed to be the same size.

I need to show these two Sets in a JTable in the format above. Naturally, the simplest way to do it would be to create a 2D array, but I’m getting confused as to the order of each.

What is the best way to do it? Ideally, it would not require iteration through the Sets, but normally, the Sets’ size is less than 10.

Answer 1

You don’t need to create a 2D array – see DefaultTableModel.addColumn. So you can use:

JTable table = new JTable();
DefaultTableModel model = (DefaultTableModel)table.getModel();
model.addColumn("Names", s1.toArray(new String[0]));
model.addColumn("Sizes", s2.toArray(new String[0]));

Sorry if syntax is slightly off – not at an IDE right now.