import com.sun.java.swing.ui.CommonUI; //导入依赖的package包/类
public void mouseClicked(MouseEvent evt) {
    // XXX Benchmark sort performance
    //long start = System.currentTimeMillis();
    CommonUI.setWaitCursor(SwingUtilities.getRoot(table));

    TableColumnModel columnModel = table.getColumnModel();
    int viewColumn = columnModel.getColumnIndexAtX(evt.getX());
    int column = table.convertColumnIndexToModel(viewColumn);
    if (evt.getClickCount() == 1 && column != -1) {
        // Reverse the sorting direction.
        model.sortByColumn(column, !model.isAscending());
    }

    // XXX Benchmark performance
    //      System.out.println("Sort time: " +
    //         (System.currentTimeMillis() - start));
    CommonUI.setDefaultCursor(SwingUtilities.getRoot(table));
}