Need help with getting variable from static

Question

Hello,
What I am building is an application that prompts for username/password before it shows the main screen. Once they have successfully logged in, I need to assign the username that they used, in order to use it for a button event if the make any updates.
Here is the code that I have tried to use.
public String username;
///This set's the public variable username
public void setUserName(String UserName){
username = UserName;
/////////////////Here is where they login, and assign the name to setUsername
public static void main(String args[]) throws SQLException {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame();
JTextField userName = new JTextField();
JTextField passWord = new JTextField();
Object[] options = {"OK","CANCEL"};
Object[] msg = {"UserName:", userName, "Password:", passWord};
final JOptionPane op = new JOptionPane(msg, JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_CANCEL_OPTION){};
JDialog dialog = op.createDialog(frame, "Please Login");
dialog.show();
int result = JOptionPane.OK_OPTION;
try {
result = ((Integer)op.getValue()).intValue();
}catch(Exception uninitializedValue){}
if(result == JOptionPane.OK_OPTION) {
String userID = userName.getText();
String passID = passWord.getText();
Main myMain = new Main();
myMain.setUserName(userID);
if(!userID.equals("") && !passID.equals("")) {
new Main().setVisible(true);
}else {
// user cancelled
////here is the button event that also will need the username
private void selButtonActionPerformed(java.awt.event.ActionEvent evt) {
Connection conn = null;
Statement stmt3 = null;
Statement stmt4 = null;
ResultSet rset3 = null;
ResultSet rset4 = null;
String usernum = null;
String xemu = null;
String loc = null;
String ustat = null;
String manager = null;
String dept = null;
String Add = "Add";
String Update = "Update";
String groupID = "9999";
Vector columnNames = new Vector();
Vector data = new Vector();
String Manager_info[] = {"managerindex", "managers", "managername"};
String Account_info[] = {"acctypeindex", "acctype", "acctypedesc"};
String Group_info[] = {"groupnum", "groups", "groupcode"};
String System_info[] = {"systemindex", "systems", "systemname"};
String Dept_info[] = {"departindex", "departments", "departname"};
String Xemu_info[] = {"xemuindex", "xemulator", "xemudesc"};
String Location_info[] = {"locindex", "location", "locdesc"};
String Ustatus_info[] = {"ustatusindex", "userstatus", "ustatusdesc"};
Date myDate = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yy");
String today = formatter.format(myDate);
System.out.println(username);
I am trying to set the public username variable to what the person enters, however since I am creating a seperate instance of it, I don't believe it will work. Any help would be very much appreciated.
Thanks.
Josh

Answer 1

I am developing in Netbeans. If I try to remove the static keyword from main(), netbeans canno't find a main to run. I have created the User class.
Here is the main again to show what I have done.
public static void main(String args[]) throws SQLException {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
User user = new User();
JFrame frame = new JFrame();
JTextField userName = new JTextField();
JTextField passWord = new JTextField();
Object[] options = {"OK","CANCEL"};
Object[] msg = {"UserName:", userName, "Password:", passWord};
final JOptionPane op = new JOptionPane(msg, JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_CANCEL_OPTION){};
JDialog dialog = op.createDialog(frame, "Please Login");
dialog.show();
int result = JOptionPane.OK_OPTION;
try {
result = ((Integer)op.getValue()).intValue();
}catch(Exception uninitializedValue){}
if(result == JOptionPane.OK_OPTION) {
String userID = userName.getText();
String passID = passWord.getText();
user.setName(userID);
user.setPassword(passID);
if(!userID.equals("") && !passID.equals("")) {
//Auth.setUserName(userID);
//Auth.setPassword(passID);
new Main().setVisible(true);
}else {
// user cancelled
This set's the variables
Here is the beginning of the evt that I am using to try and get the data.
private void selButtonActionPerformed(java.awt.event.ActionEvent evt) {                                         
Connection conn = null;
Statement stmt3 = null;
Statement stmt4 = null;
ResultSet rset3 = null;
ResultSet rset4 = null;
String usernum = null;
String xemu = null;
String loc = null;
String ustat = null;
String manager = null;
String dept = null;
String Add = "Add";
String Update = "Update";
String groupID = "9999";
Vector columnNames = new Vector();
Vector data = new Vector();
User user = new User();
String User = user.getName();
System.out.println(User);
String Manager_info[] = {"managerindex", "managers", "managername"};
String Account_info[] = {"acctypeindex", "acctype", "acctypedesc"};
String Group_info[] = {"groupnum", "groups", "groupcode"};
String System_info[] = {"systemindex", "systems", "systemname"};
String Dept_info[] = {"departindex", "departments", "departname"};
String Xemu_info[] = {"xemuindex", "xemulator", "xemudesc"};
String Location_info[] = {"locindex", "location", "locdesc"};
String Ustatus_info[] = {"ustatusindex", "userstatus", "ustatusdesc"};
Date myDate = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yy");
String today = formatter.format(myDate);
String [] str = {
"EmpID", "Account", "System", "Type", "Status", "UserID", "Group"
This gives me a null on the println, how can I get the data that was entered in main()?
Thanks,
Josh