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POHow do I compare two passwords (create password and confirm password) useing the .equals() method?
 

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  1. POHow do I compare two passwords (create password and confirm password) useing the .equals() method?
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    <p>I'm building a simple create account user GUI that is integrated with my LogInScreen class. It creates a simple User, serializes it, and then lets me use that access in my log in program. The problem is, when I type in my passwords, they're never correct. I always get a problem where my program tells me that my passwords are not the same. I'm not sure how to fix this, and I would like to know how. I'll post my code below(the whole thing, along with my serializing class because the problem may be here).</p> <p>User Class:</p> <pre><code>package passwordProgram; import java.util.ArrayList; import java.awt.BorderLayout; import java.awt.Color; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.Serializable; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.UIManager; public class User implements Serializable, ActionListener { public static ArrayList&lt;String&gt; allUsernames = new ArrayList&lt;String&gt;(); String username; String password; public static void main(String[] args) { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception e) { e.printStackTrace(); } User user = new User(); user.mainGUI(); } JFrame frame; JPanel panel; JTextField createUsername; JPasswordField createPassword; JPasswordField confirmPassword; JButton createAccount; JLabel noValid; public void mainGUI() { noValid = new JLabel(); frame = new JFrame("Create a new account!"); panel = new JPanel(); panel.setBackground(Color.ORANGE); createPassword = new JPasswordField(10); confirmPassword = new JPasswordField(10); createUsername = new JTextField(10); JLabel userTxt = new JLabel("New Username: "); JLabel userPass = new JLabel("New Password: "); JLabel confirmPass = new JLabel("Confirm Password: "); createAccount = new JButton("Create your account!"); panel.setLayout(new GridBagLayout()); GridBagConstraints left = new GridBagConstraints(); left.anchor = GridBagConstraints.WEST; GridBagConstraints right = new GridBagConstraints(); right.anchor = GridBagConstraints.EAST; right.weightx = 2.0; right.fill = GridBagConstraints.HORIZONTAL; right.gridwidth = GridBagConstraints.REMAINDER; frame.getContentPane().add(BorderLayout.NORTH, noValid); frame.getContentPane().add(BorderLayout.CENTER, panel); panel.add(userTxt, left); panel.add(createUsername, right); panel.add(userPass, left); panel.add(createPassword, right); panel.add(confirmPass, left); panel.add(confirmPassword, right); frame.getContentPane().add(BorderLayout.SOUTH, createAccount); frame.setVisible(true); frame.setSize(500, 300); createAccount.addActionListener(this); } public void actionPerformed(ActionEvent event) { if (createUsername.getText().length() &lt;= 0 ) { noValid.setText("That is not a valid username. Please try again."); frame.getContentPane().add(BorderLayout.NORTH, noValid); } else if (allUsernames.contains(createUsername.getText())) { noValid.setText("That username is already taken. Please try again."); frame.getContentPane().add(BorderLayout.NORTH, noValid); } //THIS IS THE PART I'M CONFUSED ABOUT else if (!(createPassword.getPassword().equals(confirmPassword.getPassword()))) { noValid.setText("Your passwords do not match!"); frame.getContentPane().add(BorderLayout.NORTH, noValid); } else { SaveUser sUser = new SaveUser(); sUser.createAccount(this); noValid.setText("Account created successfully"); frame.getContentPane().add(BorderLayout.NORTH, noValid); } } } </code></pre> <p>And the serializing class: </p> <pre><code>package passwordProgram; import java.io.FileOutputStream; import java.io.ObjectOutputStream; public class SaveUser { public void createAccount(User u) { try { FileOutputStream fileOS = new FileOutputStream("userInfo.txt"); ObjectOutputStream objectOS = new ObjectOutputStream(fileOS); objectOS.writeObject(u); objectOS.close(); } catch (Exception e) { e.printStackTrace(); } } } </code></pre>
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    1. COFirst thing, you should never couple a class and it's GUI. The GUI and classes should all have separate files, cause what if you wanted to use `User` again somewhere with a different GUI, or without a GUI?
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    2. COThe `serializable` class does not declare a `static final serialversionuid` field of type `long`
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    3. CONot related to the question, though do use `frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)` for graciously closing your Swing Application. Moreover if you working on `JDK 7`, then stop using `frame.getContentPane().add(blahblah)`, instead simply use `frame.add(blahblah, BorderLayout.CENTER)`
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