How to control column width in table?

Question

I have a table with four columns, and they are all with same width.
But I want to make one of them wider.
How should I do?
public void loadTable(){
Vector infoList = myObj.getInfoList();
Info info;
DefaultTableModel dtm = (DefaultTableModel)myPanel.tblList.getModel();
String[] columnNames = {
"wider column",
"Column B",
"Column C",
"Column D"};
dtm.setColumnIdentifiers(columnNames);
for(int i=0;i< infoList.size();i++){
// add stuff to "data"
dtm.addRow(data);
myPanel.tblList.setModel(dtm);
myPanel.tblList.getColumnModel().getColumn(1).setWidth(100);
I also tried setPreferedWidth(), not working for me either.
What should I do?
Thank you

Answer 1

Try setting all the column widths. Define values for normal and width columns:
        DefaultTableColumnModel tcModel = (DefaultTableColumnModel) myTable.getColumnModel();
        Enumeration columnEnum = tcModel.getColumns();
        while (columnEnum.hasMoreElements()) {
            TableColumn column = (TableColumn) columnEnum.nextElement();
            if (column.getModelIndex()  != 1) {
                column.setPreferredWidth(narrowWidth);
            } else {
                column.setPreferredWidth(wideWidth);
Cheers
DB