在我的新GUI中调用run方法后，如何返回课程？

Question

public LogInDatabase() {
    initComponents();
}

/**
 * This method is called from within the constructor to initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {

    picture = new javax.swing.JLabel();
    userNameTextField = new javax.swing.JTextField();
    labelUserName = new javax.swing.JLabel();
    labelPassword = new javax.swing.JLabel();
    passwordTextView = new javax.swing.JTextField();
    submitButton = new javax.swing.JButton();
    jButton1 = new javax.swing.JButton();
    Names = new javax.swing.JLabel();
    jLabel2 = new javax.swing.JLabel();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    picture.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Learn/Image/newpackage/colors.jpg"))); // NOI18N

    labelUserName.setFont(new java.awt.Font("Georgia", 0, 18)); // NOI18N
    labelUserName.setText("User Name");
    labelUserName.setBorder(javax.swing.BorderFactory.createEtchedBorder());

    labelPassword.setFont(new java.awt.Font("Georgia", 0, 18)); // NOI18N
    labelPassword.setText("Password");
    labelPassword.setBorder(javax.swing.BorderFactory.createEtchedBorder());

    submitButton.setBackground(new java.awt.Color(255, 51, 51));
    submitButton.setLabel("Submit");
    submitButton.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            submitButtonActionPerformed(evt);
        }
    });

    jButton1.setText("Print");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton1ActionPerformed(evt);
        }
    });

    Names.setFont(new java.awt.Font("Tahoma", 0, 18)); // NOI18N
    Names.setText("Team 1 Database - Dean Bailey, Josh Dixie, Ben Boudra, Trevor, Abel Amadou, Jalen");
    Names.setBorder(javax.swing.BorderFactory.createTitledBorder(""));

    jLabel2.setText("Status");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGap(394, 394, 394)
            .addComponent(submitButton)
            .addGap(0, 0, Short.MAX_VALUE))
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(passwordTextView, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(18, 18, 18)
                    .addComponent(labelPassword))
                .addGroup(layout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jButton1)
                    .addGap(260, 260, 260)
                    .addComponent(userNameTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(18, 18, 18)
                    .addComponent(labelUserName)))
            .addGap(325, 325, 325))
        .addGroup(layout.createSequentialGroup()
            .addGap(37, 37, 37)
            .addComponent(picture, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGap(45, 45, 45)
                    .addComponent(Names, javax.swing.GroupLayout.PREFERRED_SIZE, 776, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGroup(layout.createSequentialGroup()
                    .addGap(407, 407, 407)
                    .addComponent(jLabel2)))
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );

    layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {labelPassword, labelUserName, passwordTextView, userNameTextField});

    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(Names, javax.swing.GroupLayout.PREFERRED_SIZE, 65, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(picture, javax.swing.GroupLayout.PREFERRED_SIZE, 322, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(18, 18, 18)
            .addComponent(jLabel2)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 10, Short.MAX_VALUE)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(labelUserName)
                .addComponent(userNameTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addComponent(jButton1))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(labelPassword)
                .addComponent(passwordTextView, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(submitButton)
            .addContainerGap())
    );

    layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {labelPassword, labelUserName, passwordTextView, userNameTextField});

    pack();
}// </editor-fold>                        

private void submitButtonActionPerformed(java.awt.event.ActionEvent evt) {                                             

    //If something returns a number then its inval
    userName = userNameTextField.getText();
    password = passwordTextView.getText();

    //call = new GetThePwUserTest(userName, password);


}                                            

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    // TODO add your handling code here:
    System.out.println(getPassword());
    System.out.println(getUserName());

    userPwHolder[0] = userName;
    userPwHolder[1] = password;

}                                        

public String getUserName(){
    return userName;
}

public String getPassword(){
    return password;
}
/**
 * @param args the command line arguments
 */
/* public static void main(String args[]) {
    // Set the Nimbus look and feel 
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    // If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
    // For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 

    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    // Create and display the form 
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new LogInDatabase().setVisible(true);
        }
    });       

}*/


public void run(){
            // Set the Nimbus look and feel 
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    // If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     //For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 

    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(LogInDatabase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    // Create and display the form 
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new LogInDatabase().setVisible(true);
        }
    });       

  }

}

So I called run from another class. My main goal is to return to the class I called it from with the submit button that I have created. Can someone help me return to the class thats called it through the submit button?

Answer 1

Take a look at How to Make Dialogs .

A modal dialog will block at the code execution at the point the dialog is made visible and will return once the window has dismissed. You would then be in a position to get what ever values you needed from the object (that it proivde access for you to get).

Alternatively, you could use an Observer Pattern and simply call the class back when something has changed that it would need to know about.