Problem using actionlisteners on Jtable

Question

i have used actionlistener on a jtable1 on panel1 but the same actionlistener is being called by jtable2 on panel2 on the event and gives me error.Both panels are on same internal frame. Any way to avoid this error?

Answer 1

public void tableChanged(TableModelEvent e) {       
        System.out.println(e.getSource());
        try{
        if (e.getType() == TableModelEvent.UPDATE)
            int row = e.getFirstRow();
            int column = e.getColumn();
            if (column == 3 || column == 4 || column == 6)
                double ordervalue = 0.0;
                double qty = 0.0;
                if(String.valueOf(purchaseTableModel.getValueAt(row,3)).equals("")){
                    purchaseTableModel.setValueAt("0.0",row,3);
                }else if(String.valueOf(purchaseTableModel.getValueAt(row,4)).equals("")){
                    purchaseTableModel.setValueAt("0.0",row,4);
                }else if(String.valueOf(purchaseTableModel.getValueAt(row,6)).equals("")){
                    purchaseTableModel.setValueAt("0.0",row,6);
                }else{
                    lblMessage.setText("");
                    double extAmt = Double.parseDouble(purchaseTableModel.getValueAt(row,3).toString()) * Double.parseDouble(purchaseTableModel.getValueAt(row,4).toString());
                    purchaseTableModel.setValueAt(extAmt,row,5);
                    for(int i=0;i<tablePurchaseDetails.getRowCount();i++){
                        ordervalue = ordervalue + Double.parseDouble(purchaseTableModel.getValueAt(i,5).toString()) + Double.parseDouble(purchaseTableModel.getValueAt(i,6).toString());
                        qty = qty + Double.parseDouble(purchaseTableModel.getValueAt(i,3).toString());
                    txtOrdervalue.setText(String.valueOf(ordervalue));
                    txtTotalUnits.setText(String.valueOf(qty));
        }catch(Exception ex){
            ex.printStackTrace();
    }I am using checkbox in jtable2. On selection of checkbox of jtable2, the tableChanged() method is called which i have written for jtable1.
java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Vector.java:432)
at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:621)