Empecher saisie Clavier

Je pense que tu doit dénifir ton propre TableCellEditor qui ne valide que l'hexa, ensuite tu le définit comme editor de toutes les colonnes qui t'interessent.

Exemple:

Code:

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public class MyTableCellEditor extends AbstractCellEditor implements TableCellEditor {
        // This is the component that will handle the editing of the cell value
        JComponent component = new JTextField();
 
        // This method is called when a cell value is edited by the user.
        public Component getTableCellEditorComponent(JTable table, Object value,
                boolean isSelected, int rowIndex, int vColIndex) {
            // 'value' is value contained in the cell located at (rowIndex, vColIndex)
 
            if (isSelected) {
                // cell (and perhaps other cells) are selected
            }
 
            // Configure the component with the specified value
            ((JTextField)component).setText((String)value);
 
            // Return the configured component
            return component;
        }
 
        // This method is called when editing is completed.
        // It must return the new value to be stored in the cell.
        public Object getCellEditorValue() {
            if(isHexa(((JTextField)component).getText()))
                return ((JTextField)component).getText();
            else
                return "";
        }
    }

Et voila le principe!