public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   shell.setLayout(new FillLayout());
   final Table table = new Table(shell, SWT.BORDER);
   table.setHeaderVisible(true);
   final TableColumn column1 = new TableColumn(table, SWT.NONE);
   column1.setText("Column 1");
   final TableColumn column2 = new TableColumn(table, SWT.NONE);
   column2.setText("Column 2");
   TableItem item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"a", "3"});
   item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"b", "2"});
   item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"c", "1"});
   column1.setWidth(100);
   column2.setWidth(100);
   Listener sortListener =
       e -> {
         TableItem[] items = table.getItems();
         Collator collator = Collator.getInstance(Locale.getDefault());
         TableColumn column = (TableColumn) e.widget;
         int index = column == column1 ? 0 : 1;
         for (int i = 1; i < items.length; i++) {
           String value1 = items[i].getText(index);
           for (int j = 0; j < i; j++) {
             String value2 = items[j].getText(index);
             if (collator.compare(value1, value2) < 0) {
               String[] values = {items[i].getText(0), items[i].getText(1)};
               items[i].dispose();
               TableItem item1 = new TableItem(table, SWT.NONE, j);
               item1.setText(values);
               items = table.getItems();
               break;
             }
           }
         }
         table.setSortColumn(column);
       };
   column1.addListener(SWT.Selection, sortListener);
   column2.addListener(SWT.Selection, sortListener);
   table.setSortColumn(column1);
   table.setSortDirection(SWT.UP);
   shell.setSize(shell.computeSize(SWT.DEFAULT, SWT.DEFAULT).x, 300);
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
 }
 /** Refresh the cell widths in the table. */
 public void refreshCellWidths() {
   // set width of columns
   for (int i = 0; i < getColumnCount(); i++) {
     String name = getColumnName(i);
     TableColumn statColumn = getColumn(name);
     name = dataTable.getColumnName(i);
     TableColumn dataColumn = dataTable.getColumn(name);
     statColumn.setMaxWidth(dataColumn.getWidth());
     statColumn.setMinWidth(dataColumn.getWidth());
     statColumn.setWidth(dataColumn.getWidth());
   }
 }