? ?? ? JTable ? ??? ??

JTable?? ??? ?? ? ??? ? ?? ??? ???? ??? ??? ???? ? ????. ??? ?? ?? ??? ??? ??? ????? ???? ?? ?????.

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"??" ??? ???? ?? ??? ?? ? ???? ??? ? ??? ???? ? ?? ? ?? ??? ???? ???? ??????. ??? ??????? ??? ??? ? ? ???? ???? ???? ?? ? ????.

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? ?? ? ??? ?? ???? ?????, ??? ??? ???? ???? ???? ?? ?????. ??? ???? JTable? editStopped() ???? getCellEditorValue()? ?? ? ?? ?????. ?? ?? ??? setValueAt()? ??? ?? ??? fireTableCellUpdated()? ???? ???. ? ???? ????? ??? ?? ?? ??? ???? ?? ??? ? ?? ???? ?????.

?? ?? ??

? ??? ?? ?? ??? ?? ???? ??? ???? ?? ????. ??? ?? ???? ??? ?? ?? ??? ?????. ?? ?? ?? ??? ??? ? ????? ??? ? ?? ? ?? ??? ??? ??? ?????.

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?? ?? ???? ?? ??? ??? ???? ?? ??? ?????. JTable ??? ?? ?? ??? ??? ?????. ??? ?? ???(CurrencyRenderer)? ?? ??? ???? ??? ?? ???(CurrencyEditor)? ???? ???? ??? ????? ?? ??? ? ????.

import java.awt.Component;
import java.awt.event.MouseEvent;
import java.text.NumberFormat;
import javax.swing.DefaultCellEditor;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableCellRenderer;

// Custom cell renderer for currency formatting
public class CurrencyRenderer extends DefaultTableCellRenderer {

    private NumberFormat formatter;

    public CurrencyRenderer(NumberFormat formatter) {
        this.formatter = formatter;
        setHorizontalAlignment(JLabel.RIGHT);
    }

    @Override
    public void setValue(Object value) {
        setText((value == null) ? "" : formatter.format(value));
    }
}

// Custom cell editor for currency input, maintaining the formatting
public class CurrencyEditor extends DefaultCellEditor {

    private NumberFormat formatter;
    private JTextField textField;

    public CurrencyEditor(NumberFormat formatter) {
        super(new JTextField());
        this.formatter = formatter;
        textField = (JTextField) getComponent();
        textField.setHorizontalAlignment(JTextField.RIGHT);
        textField.setBorder(null);
    }

    @Override
    public Object getCellEditorValue() {
        try {
            return new Double(textField.getText());
        } catch (NumberFormatException e) {
            return Double.valueOf(0);
        }
    }

    @Override
    public Component getTableCellEditorComponent(JTable table,
            Object value, boolean isSelected, int row, int column) {
        textField.setText((value == null)
                ? "" : formatter.format((Double) value));
        return textField;
    }
}

??? ??? ?????? ???? ??? ?? ? ???? ??? ? ????. ? ?? ??? JTable?? ???? ???? ???? ??? ???? ??? ?? ??? ?????.

? ??? ? ?? ? ??? ?? JTable ? ???? ??? ??? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!