[bbq]

I'm trying to fill a jtable with information from the data base

Code:

try {
           
        statement = connection.createStatement();
            Result = statement.executeQuery (con);
           
            while(Result .next()) {
                data.addElement(Result.getString("user"));
            }
           
        } catch (SQLException sqlEx) {
            cargarDB.displayErroresSQL(sqlEx);
        } catch (NullPointerException nuloEx) {
            nuloEx.printStackTrace();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

I have this error:

Code:

java.lang.NullPointerException
        at org.gui.Deleteuser.<init>( EliminarUsuario.java:83)
        at org.gui.Main.actionPerformed(Main.java:180)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed (Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.AbstractButton.doClick(Unknown Source)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
  

        at java.awt.EventDispatchThread.pumpEvents (Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

any ideas?