from JTable to structure fieldname

hello, I am developing a GUI in Matlab using Java, I added a table (1 column, user-defined number of rows) I want to insert names in the rows and use those names as fieldnames to define structures but the variable coming from the table is a cell array with vectors containing the string between square breakets and I can't use them for fieldnames (I guess because of the breakets, it says 'invalid fieldname' or something), I realize the problem can be cause by the getValue istance that is referred to vectors, not strings, but I don't know what to do otherwise. Thank you

[Guillaume]

It would be useful if you could show us the code you use to extract the data from the table.

[Francesco Fortunato]

if true
  % code
end
modelsc = javax.swing.table.DefaultTableModel(1,1);
            data.satellitetable = JTable(modelsc);
            data.satellitetable.getColumnModel().getColumn(0).setHeaderValue('Spacecraft Name');           
            data.satellitetable.getTableHeader.setReorderingAllowed(0);
            tableviewsc = JScrollPane(data.satellitetable);
            tableviewsc.setPreferredSize(java.awt.Dimension(200,100));
            c.insets = Insets(0,10,0,0);
            c.anchor = GridBagConstraints.CENTER;
            c.gridwidth = 1;
            c.gridheight = 1;
            c.gridx = 0;
            c.gridy = 0;
            gridbag.setConstraints(tableviewsc, c);
            constellationpanel.add(tableviewsc,c);

and to read the values

if true
  % code
end
input.Constellation.satnumber=data.satellitetable.getModel.getRowCount;
    for i = 1:data.satellitetable.getModel.getRowCount
                satellitear = data.satellitetable.getModel.getDataVector.elementAt(i-1);
                if ischar(satellitear)
                    input.Constellation.SCnames(i) = satellitear;
                else
                    if isempty(str2num(satellitear))
                        input.Constellation.SCnames(end+1) = satellitear;
                    else
                        input.Constellation.SCnames(end+1) = satellitear;
                    end
                end
     end

Answer 1

[Guillaume]

A word of caution first: five minutes ago, I didn't know anything about JTable.

JTable.getModel.getDataVector returns a vector of vectors. The outer vector is the rows and the inner vector is the columns. So, your data.satellitetable.getModel.getDataVector.elementAt(i-1) is the vector of columns of the ith row. To actually get the content of the colum you still need to iterate over that vector, or since your table only has one column, just access that column

rowvectors = data.satellitetable.getModel.getDataVector;  %this is a Vector of Vectors
for row = 0:rowvectors.size-1    %iterate over the rows
   columnvector = rowvectors.elementAt(row);   %columns of the current row
   value1stcolumn = columnvector.elementAt(0);   %value in 1st column
   %...

|value1stcolumn | will be a char array with the exact content of the cell.

Alternatively, you can use the ToArray method to convert the column vector to a Java Array, that you can then convert into a cell array of whatever is in these columns (most likely char arrays), so:

rowvectors = data.satellitetable.getModel.getDataVector;  %this is a Vector of Vectors
for row = 0:rowvectors.size-1    %iterate over the rows
   columnvector = rowvectors.elementAt(row);   %columns of the current row
   columnvalues = cell(columnvector.ToArray);  %convert vector to array, then to matlab cell array
   value1stcolumn = columnvalues{1};
   %...

But I believe simpler is to use the GetValueAt method of the DataModel:

datamodel = data.satellitetable.getModel;
for row = 0:datamodel.getRowCount-1
   valueat1stcolumn = datamodel.getValueAt(row, 0);
   %....

[Francesco Fortunato]

thank you so much! I am actually a beginner in all of this, as you surely understood, but I solve my problem from your answer