AbstractTableModel setValueAt方法未被调用

Question

我试图在单击标题时使用setValueAt方法在我的jtablemodel中设置一个值.我目前有一个MouseAdapter正确显示正在单击哪个列但是没有调用board.setValueAt()方法.

鼠标监听器.这会正确显示我单击的列.我试过使用board.getModel().setValueAt()但是也没用.

public class HeaderListener extends MouseAdapter{
    private JTable board;
    public HeaderListener(JTable board){
        this.board = board;
    }

    @Override
    public void mouseClicked(MouseEvent event) {
        Point point = event.getPoint();
        int column = board.columnAtPoint(point);
        System.out.println(column);
        Data value = new Data(0,"yes");
        board.setValueAt(value, 0, column);
    }
}

TableModel."输入时设置值"永远不会显示给控制台.当我尝试覆盖它时,它给了我一个错误.

public class TableModel extends AbstractTableModel{
    private Data[][] data; 
    private String[] columnNames = {"Move Here",
                        "Move Here",
                        "Move Here",
                        "Move Here",
                        "Move Here","Move Here"};

    public TableModel(){
        data = new Data[6][7];
        Data test = new Data(0,"yes");
        data[1][1] = test;
    }

    @Override
    public int getRowCount() {
        return data.length;
    }

    @Override
    public int getColumnCount() {
        return columnNames.length;
    }
    @Override
    public String getColumnName(int col) {
        return columnNames[col];
    }
    @Override
    public Object getValueAt(int row, int col) {
        return (data[row][col]==null?"":data[row][col].getText());
    }

    public void setValueAt(Data data2, int row, int col){
        System.out.println("Set value at entered");
        data[row][col] = data2;
        fireTableCellUpdated(row,col);
        System.out.println(data[row][col].getText());
        System.out.println(data[row][col].getPlayer());
    }

}

主要方法板创建...

JTable board = new JTable(new TableModel());
board.getTableHeader().addMouseListener(new HeaderListener(board));

谁能告诉我我做错了什么？

Answer 1

您的setValueAt方法签名与AbstractTableModel的签名不匹配,因此不会覆盖超级自己的方法.第一个参数应该是Object,而不是Data.@Override在重写方法时始终使用注释,以允许编译器检查以确保您正确执行此操作.