// Determines the width of each column in the table. protected void determineColumnWidth() { if (segmentTable.getColumnCount() == 2) { TableColumn column = null; for (int i = 0; i < 2; i++) { column = segmentTable.getColumnModel().getColumn(i); if (i == 0) { column.setPreferredWidth(30); } else { column.setPreferredWidth(100); } } } }