Question

My program takes user name and password authentication from user before initialising the program,
so i created a button login to which i associated ActionListener as show below

   login.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent event){
                if(txtUserName.getText().equals("Suraj") && (txtPwd.getPassword().toString()).equals("s123")){

                                dispose();
                                TimeFrame tFrame = new TimeFrame(userName);
                                tFrame.setVisible(true);
                                tFrame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
                                tFrame.setLayout(new GridLayout());

                        } else {
                            JOptionPane.showMessageDialog(null,"User name or password don't match","Acces Denied", JOptionPane.ERROR_MESSAGE);
                        }

Now the problem that occurs is even if i enter correct password, program displays an error message

Answer 1

getPassword() returns a char[]. The toString() on it does not return the contents as a string as you assume.

Try new String(txtPwd.getPassword()).equals("s123").

However, there is a reason it is a char[] and not a String. Try looking up the security aspect of it in the javadoc.