kiko11

I had a problem.. when I call a frame which is a GUI and push a button which will be disabled.. and my problem was how should it retain the disabled button if the GUI was called again.. please help.. can you give an example..

[CODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package schedule; /** * * @author Kix */ import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.sql.*; public class Fourth extends JFrame { static JLabel lblFaccode,lblFaculty,lblSpace,lblSpace1; static JButton btnExit; static JTable tblOne; …

I want to update a data in my row in the database but it will only add it to the existing data where this existing data is a integer.. example i have a existing data of 100 and my update data is 200.. so the result should be 300... please …

[code=text]jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=C:/Users/Kix/Desktop/IMPORTANT DOCS/oop/BANKSYSTEM/Accounts.mdb;DriverID=22;READONLY=false} Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at banksystem.BankDBDriver.retrieveData(BankDBDriver.java:200) at banksystem.BankSystem.actionPerformed(BankSystem.java:109) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6267) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6032) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4460) …