Help needed with project

Question

Hello everyone. Some help would be appreciated. I have created a wildlife resort database with access.
It has an animals table with 5 entries, a species table with 3 entries and a user table with 3 entries.
I have set up a JDBC-ODBC bridge.
The server side of this application when run gets stuck upon pressing connect the first time so I have to run the server again while the first server window is running in the background and press connect for it to start running. The server works just fine after that. I can add and remove from the tables using the server.
When I run the client and try to connect it, it doesn't accept the hostname. I can't connect or log in.
I think the problem is with the threads but I'm not sure what to do to fix it.
Also I use java beans for coding.
These are some errors I get when running the client:
java.lang.IllegalThreadStateException
at java.lang.ThreadGroup.add(ThreadGroup.java:856)
at java.lang.Thread.start(Thread.java:573)
at org.apache.tools.ant.taskdefs.ProcessDestroyer.removeShutdownHook(ProcessDestroyer.java:145)
at org.apache.tools.ant.taskdefs.ProcessDestroyer.remove(ProcessDestroyer.java:198)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:487)
at org.apache.tools.ant.taskdefs.Java.fork(Java.java:746)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:170)
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:377)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
at org.apache.tools.ant.Project.executeTargets(Project.java:1062)
at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:217)
at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:236)
at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:125)
Exception in thread "Thread-7" java.lang.NullPointerException
at Client.Connect.connecting(Connect.java:45)
at Client.ClientGUI.run(ClientGUI.java:214)
at java.lang.Thread.run(Thread.java:595)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at Client.Connect.userPass(Connect.java:206)
at Client.ClientGUI.actionPerformed(ClientGUI.java:164)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041)
at java.awt.Component.processMouseEvent(Component.java:5488)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3093)
at java.awt.Component.processEvent(Component.java:5253)
at java.awt.Container.processEvent(Container.java:1966)
at java.awt.Component.dispatchEventImpl(Component.java:3955)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
at java.awt.Container.dispatchEventImpl(Container.java:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1766)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
These are the classes I have created:
On the client side:
//imports needed for the GUI and I/O Operations
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import java.io.*;
public class ClientGUI extends JFrame implements ActionListener, Runnable {
JPanel pane = new JPanel();
//Create the Menubar Items
JMenuBar bar = new JMenuBar();
JMenu jMenu1 = new JMenu();
JMenu jMenu2 = new JMenu();
JMenu jMenu3 = new JMenu();
JMenuItem Exit = new JMenuItem();
JMenuItem Open = new JMenuItem();
JMenuItem Close = new JMenuItem();
JMenuItem Find = new JMenuItem();
static JMenuItem Add = new JMenuItem();
static JMenuItem Remove = new JMenuItem();
static JMenuItem Connect1 = new JMenuItem();
static JMenuItem Disconnect = new JMenuItem();
static JMenuItem Login = new JMenuItem();
static JMenuItem Logout = new JMenuItem();
static boolean check = true;
static JLabel running = new JLabel("You are not Connected");
//Creates the animal JTable and adds it to a scrollpane
public static String[] animalH = {"Id" , "Name" , "Description" , "Species Id"};
public static Object rows1 [] [] = new Object[40][4];
public static JTable animal = new JTable(rows1 , animalH);
JScrollPane animalP;
//Creates the species JTable and adds it to a scrollpane
public static String[] speciesH = {"Species Id" , "Species Name"};
public static Object rows2 [] [] = new Object[40][2];
public static JTable species = new JTable(rows2 , speciesH);
JScrollPane speciesP;
public static Thread runner;
//Declares Globale variables
static int currentT;
int respones;
static String hostname;
static boolean connected = false;
/** Creates a new instance of ClientGUI */
public ClientGUI() {
super("SA Wildlife -- Client");
setSize(800 , 600);
setDefaultCloseOperation(EXIT_ON_CLOSE);
getContentPane().add(running , BorderLayout.SOUTH);
Add.setEnabled(false);
Remove.setEnabled(false);
Logout.setEnabled(false);
Disconnect.setEnabled(false);
try {
jbInit();
}catch(Exception e) {
e.printStackTrace();
addListener();
setJMenuBar(bar);
setVisible(true);
//Add the actionListeners to the components
public void addListener(){
Open.addActionListener(this);
Close.addActionListener(this);
Exit.addActionListener(this);
Connect1.addActionListener(this);
Disconnect.addActionListener(this);
Find.addActionListener(this);
Login.addActionListener(this);
Logout.addActionListener(this);
Add.addActionListener(this);
Remove.addActionListener(this);
//Add the actions which the components must perform
public void actionPerformed(ActionEvent evt){
Object s = evt.getSource();
if (s == Open){
choice();
Close();
if (respones == 0){
currentT = 1;
clearTableAnimals();
Connect.allAnimal();
animal = new JTable(rows1, animalH);
animalP = new JScrollPane(animal);
getContentPane().add(animalP, BorderLayout.CENTER);
setVisible(true);
}else if (respones == 1 ){
currentT = 2;
clearTableSpecies();
Connect.allSpecies();
species = new JTable(rows2 , speciesH);
speciesP = new JScrollPane(species);
getContentPane().add(speciesP, BorderLayout.CENTER);
setVisible(true);
}else if (s == Close){
Close();
}else if (s == Exit){
exit();
}else if (s == Connect1){
hostname = JOptionPane.showInputDialog(null , "Please enter Hostname");
if (check = true){
runner = new Thread(this);
runner.start();
Connect1.setEnabled(false);
Disconnect.setEnabled(true);
}else if (s == Disconnect){
Connect.out.println("Bye");
runner = null;
try {
Connect.out.close();
Connect.in.close();
Connect.clientSocket.close();
} catch (IOException ioe) {
JOptionPane.showMessageDialog(null,
"Error " + ioe.toString(),
"IO Exception",
JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else if (s == Find){
choice();
Close();
if (respones == 0){
currentT = 1;
String Aname = JOptionPane.showInputDialog(null , "Enter Animal name to find ");
clearTableAnimals();
Connect.findAnimal(Aname);
animal = new JTable(rows1, animalH);
animalP = new JScrollPane(animal);
getContentPane().add(animalP, BorderLayout.CENTER);
setVisible(true);
}else{
currentT = 2;
String Sname = JOptionPane.showInputDialog(null , "Enter Species name to find ");
clearTableSpecies();
Connect.findSpecies(Sname);
species = new JTable(rows2 , speciesH);
speciesP = new JScrollPane(species);
getContentPane().add(speciesP, BorderLayout.CENTER);
setVisible(true);
}else if( s== Login){
String name = JOptionPane.showInputDialog(null , "Please enter a UserName");
String password = JOptionPane.showInputDialog(null , "Please enter a Password");
Connect.userPass(name , password);
}else if (s == Logout){
Logout();
}else if (s== Add){
choice();
Close();
if(respones == 0){
currentT = 1;
String id = JOptionPane.showInputDialog(null , "Enter an Animal id");
String name = JOptionPane.showInputDialog(null , "Enter an Animal Name");
String desc = JOptionPane.showInputDialog(null , "Enter an Animal Description");
String speciesid = JOptionPane.showInputDialog(null , "Enter an Animal species id");
clearTableAnimals();
Connect.toAddAnimal(id , name , desc , speciesid);
Connect.allAnimal();
animal = new JTable(rows1, animalH);
animalP = new JScrollPane(animal);
getContentPane().add(animalP, BorderLayout.CENTER);
setVisible(true);
}else{
currentT = 2;
String id = JOptionPane.showInputDialog(null , "Enter a Species id");
String name = JOptionPane.showInputDialog(null , "Enter a Species name");
clearTableSpecies();
Connect.toAddSpecies(id , name);
Connect.allSpecies();
species = new JTable(rows2 , speciesH);
speciesP = new JScrollPane(species);
getContentPane().add(speciesP, BorderLayout.CENTER);
setVisible(true);
}else if (s == Remove){
choice();
Close();
if(respones == 0){
currentT = 1;
String id = JOptionPane.showInputDialog(null , "Enter an Animal id to Remove");
Connect.toRemoveAnimal(id);
}else{
currentT = 2;
String id = JOptionPane.showInputDialog(null , "Enter a Species id to Remove");
Connect.toRemoveSpecies(id);
public void run() {
Connect connect = new Connect();
while (runner != null) {
try {
connect.connecting();
catch (IOException ioe) {
System.out.println("Error: " + ioe);
ClientGUI.running.setText("You are now connected");
//Method the creates the dialog box for the user to choose what he wants to do
void exit(){
String [] option = { "Exit" , "Minimize" , "Cancel" };
int which = JOptionPane.showOptionDialog(null , "Sure you want to exit"
, "Exiting" , 0 , JOptionPane.WARNING_MESSAGE ,
null , option , option[2] );
if (which == 0){
System.exit(1);
}else if (which == 1){
setState(JFrame.ICONIFIED);
}else{}
//Closes the current table on the panel
public void Close(){
if(currentT == 1){
animalP.setVisible(false);
}else if (currentT == 2){
speciesP.setVisible(false);
}else{}
//Method that give the user a choice on which table to perform actions on
public void choice(){
String[] choices = {"Animals" , "Species"};
respones = JOptionPane.showOptionDialog(null ,
"Please select Table" , "Table" , 0 , JOptionPane.INFORMATION_MESSAGE ,
null , choices , choices[1] );
//Clears the Species table
public void clearTableSpecies(){
for (int i = 0; i < 40; i++){
rows2[0] = "";
rows2[i][1] = "";
//Clears the Animal table
public void clearTableAnimals(){
for (int i = 0; i < 40; i++){
rows1[i][0] = "";
rows1[i][1] = "";
rows1[i][2] = "";
rows1[i][3] = "";
//Method for the Logout button
public void Logout(){
JOptionPane.showMessageDialog(null , "You are now logged out ");
Login.setEnabled(true);
Add.setEnabled(false);
Remove.setEnabled(false);
Logout.setEnabled(false);
//Main Methof
public static void main(String[] args) {
ClientGUI GUI1 = new ClientGUI();
// Adds all components to the panel
private void jbInit() throws Exception {
jMenu1.setText("File");
Exit.setText("Exit");
jMenu2.setText("Table Action");
Open.setText("Open Table");
Add.setText("Add to Table");
Remove.setText("Remove from Table");
Find.setText("Find In table");
Close.setText("Close Current");
jMenu3.setText("Client");
Connect1.setText("Connect");
Disconnect.setText("Disconnect");
Login.setText("Login");
Logout.setText("Logout");
bar.add(jMenu1);
bar.add(jMenu2);
bar.add(jMenu3);
jMenu1.add(Exit);
jMenu2.add(Open);
jMenu2.add(Add);
jMenu2.add(Remove);
jMenu2.add(Find);
jMenu2.add(Close);
jMenu3.add(Connect1);
jMenu3.add(Disconnect);
jMenu3.add(Login);
jMenu3.add(Logout);
package Client;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.util.*;
public class Connect {
static public Socket clientSocket = null;
static public PrintWriter out = null;
static public BufferedReader in = null;
public void connecting() throws IOException {
try{
clientSocket = new Socket(ClientGUI.hostname , 1234);
out = new PrintWriter(clientSocket.getOutputStream() , true);
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
}catch (UnknownHostException e){
JOptionPane.showMessageDialog(null , "Dont know about host");
ClientGUI.check = false;
ClientGUI.Connect1.setEnabled(true);
ClientGUI.Disconnect.setEnabled(false);
ClientGUI.runner = null;
}catch(IOException i){
ClientGUI.check = false;
JOptionPane.showMessageDialog(null,"Couldnt get i/O for the connection to 127.0.0.0.1");
ClientGUI.Connect1.setEnabled(true);
ClientGUI.Disconnect.setEnabled(false);
ClientGUI.runner = null;
if (ClientGUI.check = true){
String fromServer;
StringTokenizer token1;
String First;
String Second;
String Third;
while ( (fromServer = in.readLine()) != null) {
System.out.println("From SerVer ---------------> " + fromServer);
token1 = new StringTokenizer(fromServer, "%");
StringTokenizer token2;
StringTokenizer token3;
First = token1.nextToken();
System.out.println("First ------- > " + First);
if (First.equalsIgnoreCase("SelectedAnimal")) {
System.out.println("IT's ON ");
Second = token1.nextToken();
System.out.println("Second ----> " + Second);
int y = 0;
int x = 0;
System.out.println("In the 1while");
token2 = new StringTokenizer(Second, "$");
while (token2.hasMoreTokens()) {
System.out.println("In the 2while");
token3 = new StringTokenizer(token2.nextToken(), "@");
x = 0;
while (token3.hasMoreTokens()) {
ClientGUI.rows1[y][x] = token3.nextToken();
x++;
y++;
else if (First.equalsIgnoreCase("SelectedSpecies")) {
System.out.println("IT's ON BITCH ");
Second = token1.nextToken();
System.out.println("Second ----> " + Second);
int y = 0;
int x = 0;
System.out.println("In die 1while");
token2 = new StringTokenizer(Second, "$");
while (token2.hasMoreTokens()) {
System.out.println("In die 2while");
token3 = new StringTokenizer(token2.nextToken(), "@");
x = 0;
while (token3.hasMoreTokens()) {
ClientGUI.rows2[y][x] = token3.nextToken();
x++;
y++;
else if (First.equalsIgnoreCase("FoundAnimal")) {
Second = token1.nextToken();
if (! (Second.equalsIgnoreCase("NONE"))) {
System.out.println("Second ----> " + Second);
int y = 0;
int x = 0;
System.out.println("In the 1while");
token2 = new StringTokenizer(Second, "$");
while (token2.hasMoreTokens()) {
System.out.println("In the 2while");
token3 = new StringTokenizer(token2.nextToken(), "#@#");
x = 0;
while (token3.hasMoreTokens()) {
ClientGUI.rows1[y][x] = token3.nextToken();
x++;
y++;
else {
JOptionPane.showMessageDialog(null,
"Could not find Animal , Please try again");
else if (First.equalsIgnoreCase("FoundSpecies")) {
Second = token1.nextToken();
if (! (Second.equalsIgnoreCase("NONE"))) {
System.out.println("Second ----> " + Second);
int y = 0;
int x = 0;
System.out.println("In die 1while");
token2 = new StringTokenizer(Second, "$");
while (token2.hasMoreTokens()) {
System.out.println("In die 2while");
token3 = new StringTokenizer(token2.nextToken(), "#@#");
x = 0;
while (token3.hasMoreTokens()) {
ClientGUI.rows2[y][x] = token3.nextToken();
x++;
y++;
else {
JOptionPane.showMessageDialog(null,
"Could not find Species , Please try again");
else if (First.equalsIgnoreCase("FoundUser")) {
System.out.println("From Server --- > " + First);
String login = token1.nextToken();
System.out.println("Find true or false ---- > " + login);
if (login.equalsIgnoreCase("isUser")) {
JOptionPane.showMessageDialog(null, "You are now logged in");
ClientGUI.Add.setEnabled(true);
ClientGUI.Remove.setEnabled(true);
ClientGUI.Logout.setEnabled(true);
ClientGUI.Login.setEnabled(false);
else {
JOptionPane.showMessageDialog(null,
"Invalid Username or Password, Please try again");
else if (First.equalsIgnoreCase("RecordAddedA")) {
JOptionPane.showMessageDialog(null, "Record Added");
else if (First.equalsIgnoreCase("RecordAddedS")) {
JOptionPane.showMessageDialog(null, "Record Added");
else if (First.equalsIgnoreCase("SQLE")) {
System.out.println("ERROR SQL ERROR");
else if (First.equalsIgnoreCase("Blah1")) {
System.out.println("ERROR Ander ERROR");
else if (First.equalsIgnoreCase("AnimalRemoved")) {
JOptionPane.showMessageDialog(null, "Record Removed");
else if (First.equalsIgnoreCase("SpeciesRemoved")) {
JOptionPane.showMessageDialog(null, "Record Removed");
}else{
System.out.println("BLAAAAAAAAH");
static public void Close() throws IOException{
out.println("bye");
ClientGUI.runner = null;
ClientGUI.Disconnect.setEnabled(false);
ClientGUI.Connect1.setEnabled(true);
out.close();
in.close();
clientSocket.close();
static public void allAnimal(){
out.println("SELECTANIMALS");
static public void allSpecies(){
out.println("SELECTSPECIES");
static public void findAnimal(String name){
out.println("FINDANIMAL" + "@" + name);
static public void findSpecies(String name){
out.println("FINDSPECIES@" + name);
static public void userPass(String name , String password){
System.out.println("FINDUSER -----> " + name + " " + password);
out.println("FINDUSER@" + name + "@" + password);
static public void toAddAnimal(String id , String name , String desc , String species){
out.println("toAddAnimal@" + id +"@" + name +"@" + desc +"@" + species );
static public void toAddSpecies(String id , String name){
out.println("toAddSpecies@" + id +"@" + name );
static public void toRemoveAnimal(String id){
out.println("toRemoveAnimal@" + id);
static public void toRemoveSpecies(String id){
out.println("toRemoveSpecies@" + id);
On the server side:
package Server;
////import everything necesary for the Database Connection
import java.sql.*;
import java.util.StringTokenizer;
import javax.swing.*;
import java.util.*;
public class DatabaseConnect {
//Declaration of Globale variables
static int hoeveel = 0;
static ResultSet rec ;
static String bidData[] = new String[100];
static String toSend[] = new String[100];
//Connects the program to the database
public DatabaseConnect() {
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String source = "jdbc:odbc:Database";
Connection dbconnect = DriverManager.getConnection(source);
Statement st = dbconnect.createStatement();
}catch(ClassNotFoundException cnf){
System.out.println("classNotFound" + cnf);
}catch(SQLException se) {
System.out.println("SqlExeption" + se);
//Selects the data from the databas and adds the data to the tables
public void open(){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String source = "jdbc:odbc:Database";
Connection dbconnect = DriverManager.getConnection(source);
Statement st = dbconnect.createStatement();
if (ServerGUI.currentT == 1){
hoeveel = 0;
rec = st.executeQuery("SELECT * FROM ANIMALS");
while (rec.next()) {
bidData[hoeveel++] = rec.getString(1) + "@#@" +
rec.getString(2) + "@#@" +
rec.getString(3) + "@#@" +
rec.getString(4);
readintoTable1();
}else if (ServerGUI.currentT == 2){
hoeveel = 0;
rec = st.executeQuery("SELECT * FROM SPECIES");
while (rec.next()) {
bidData[hoeveel++] = rec.getString(1) + "@#@" + rec.getString(2);
readintoTable2();
}else if(ServerGUI.currentT == 3){
hoeveel = 0;
rec = st.executeQuery("SELECT * FROM USER");
while (rec.next()) {
bidData[hoeveel++] = rec.getString(1) + "@#@" + rec.getString(2)
+ "@#@" + rec.getString(3);
readintoTable3();
}catch(ClassNotFoundException cnf){
System.out.println("classNotFound" + cnf);
}catch(SQLException se) {
System.out.println("SqlExeption" + se);
//Clean the table and reads the data into the animal table
public void readintoTable1(){
for(int a = 0; a < 40; a++){
ServerGUI.rows1[a][0] = "";
ServerGUI.rows1[a][1] = "";
ServerGUI.rows1[a][2] = "";
ServerGUI.rows1[a][3] = "";
for (int i = 0; i < hoeveel; i++) {
StringTokenizer str = new StringTokenizer(bidData[i], "@#@");
ServerGUI.rows1[i][0] = str.nextToken();
ServerGUI.rows1[i][1] = str.nextToken();
ServerGUI.rows1[i][2] = str.nextToken();
ServerGUI.rows1[i][3] = str.nextToken();
//Clean the table and reads the data into the Species table
public void readintoTable2(){
for(int a = 0; a < 40; a++){
ServerGUI.rows2[a][0] = "";
ServerGUI.rows2[a][1] = "";
for (int i = 0; i < hoeveel; i++) {
StringTokenizer str = new StringTokenizer(bidData[i], "@#@");
ServerGUI.rows2[i][0] = str.nextToken();
ServerGUI.rows2[i][1] = str.nextToken();
//Clean the table and reads the data into the User table
public void readintoTable3(){
for(int a = 0; a < 40; a++){
ServerGUI.rows3[a][0] = "";
ServerGUI.rows3[a][1] = "";
ServerGUI.rows3[a][2] = "";
for (int b = 0; b < hoeveel; b++) {
StringTokenizer str = new StringTokenizer(bidData, "@#@");
ServerGUI.rows3[b][0] = str.nextToken();
ServerGUI.rows3[b][1] = str.nextToken();
ServerGUI.rows3[b][2] = str.nextToken();
//add animal information to the Animal table in the database
public void addAnimal(String id , String name , String desc , String species_id){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String source = "jdbc:odbc:Database";
Connection dbconnect = DriverManager.getConnection(source);
Statement st = dbconnect.createStatement();
int toAdd;
String sqlstm = "INSERT INTO animals" + "(animal_id, animal_Name , description , species_id)" +
"VALUES (" + id + ", '" + name + "', '" + desc + "', " + species_id + ")";
toAdd = st.executeUpdate(sqlstm);
dbconnect.close();
JOptionPane.showMessageDialog(null , "New Record Added");
ServerGUI.refreshAnimal();
ServerGUI.currentT = 1;
open();
}catch(ClassNotFoundException cnf){
JOptionPane.showMessageDialog(null,
"Class Not Found -> " + cnf.toString(),
"Error!!",
JOptionPane.ERROR_MESSAGE);
System.out.println("classNotFound" + cnf);
}catch(SQLException se) {
JOptionPane.showMessageDialog(null,
"SQL Exception -> " + se.toString()
+ "\n Please make sure all data is entered correctly ",
"Error!!",
JOptionPane.ERROR_MESSAGE);
System.out.println("SqlExeption" + se);
//add animal information to the Species table in the database
public void addSpecies(String id1 , String name1){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String source = "jdbc:odbc:Database";
Connection dbconnect = DriverManager.getConnection(source);
Statement st = dbconnect.createStatement();
int toAdd;
String sqlstm = "INSERT INTO species" + "(species_id, species_name)" +
"VALUES ( '" + id1 + "', '" + name1 + "')";
toAdd = st.executeUpdate(sqlstm);
dbconnect.close();
JOptionPane.showMessageDialog(null , "New Record Added");
ServerGUI.refreshSpecies();
ServerGUI.currentT = 2;
open();
}catch(ClassNotFoundException cnf){
JOptionPane.showMessageDialog(null,
"Class Not Found -> " + cnf.toString(),
"Error!!",
JOptionPane.ERROR_MESSAGE);
System.out.println("classNotFound" + cnf);
}catch(SQLException se) {
JOptionPane.showMessageDialog(null,
"SQL Exception -> " + se.toString()
+ "\n Please make sure all data is entered correctly ",
"Error!!",
JOptionPane.ERROR_MESSAGE);
System.out.println("SqlExeption" + se);
//add animal information to the User table in the database
public void addUser(String id2 , String user , String pass){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String source = "jdbc:odbc:Database";
Connection dbconnect = DriverManager.getConnection(source);
Statement st = dbconnect.createStatement();
int toAdd;
String sqlstm = "INSERT INTO user" + "(user_id, user_name ,user_password)" +
"VALUES ( '" + id2 + "', '" + user + "', '"+ pass + "')";
toAdd = st.executeUpdate(sqlstm);
dbconnect.close();
JOptionPane.showMessageDialog(null , "New Record Added");
ServerGUI.refreshUser();
ServerGUI.currentT = 3

Answer 1

Your code is completely unreliable and it should be placed inside a code block when you add it. Also your question would be better off in the JDBC forum than the networking one.