Trying to make a login page, I am stuck! [java]

Here is my code and what I want to do is, when the login button is pressed, I would like it to check the password and text fields for the right password(found in the if statement). I need help on what to do to get the input from the text and password fields. When I run the code, it skips right to the else statement and does the code in there, I want it to do the if statement as I have entered the right username and password. I was trying to figure out how to get input from the text fields but I don't know how to. I would appreciate some help, thank you.

    import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class GUI_2 implements ActionListener {
private JLabel PassLabel;
private JFrame frame;
private JButton enterButton;
private JLabel UserLabel;
private JLabel label;
private JPanel panel;
private JFrame Incorrect;
private JTextField password;
private JTextField username;
private String rightPassword;
private String rightUsername;
private String passwordInput;
private String usernameInput;
private JButton UsernameEnter;
private JButton PasswordEnter;
private final static String newline = "\n";
private TextArea textArea;
public GUI_2()
{
PassLabel = new JLabel("Enter Password:");
password = new JPasswordField(11);
UserLabel = new JLabel("Enter Username:");
username = new JTextField(11);
enterButton = new JButton("Login");
label = new JLabel("Access");
UsernameEnter = new JButton("Enter");
PasswordEnter = new JButton("Enter");
frame = new JFrame();
panel = new JPanel();
Incorrect = new JFrame();
enterButton.addActionListener(this);
panel.setBorder(BorderFactory.createEmptyBorder(200,200,60,300));
panel.setLayout(new GridLayout(5, 5));
panel.add(UserLabel);
panel.add(username);
panel.add(PassLabel);
panel.add(password);
panel.add(label);
panel.add(enterButton);
frame.add(panel, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Password Login");
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
new GUI_2();
// TODO Auto-generated method stub
}
public void actionPerformed(ActionEvent arg0)
{
if (passwordInput == "password" && usernameInput == "harry")
{
frame.setTitle("Success");
label.setForeground(Color.green);
label.setText("Access granted");
}
else
{
frame.setTitle("Access Denied");
label.setForeground(Color.red);
label.setText("Access Denied");
}
}
}

1: you can get the input password with: password.getText()

2: you should use "equals" compare two string passwordInput.equals("password")

so modify the actionPerformed method like this:

    public void actionPerformed(ActionEvent arg0) {

        passwordInput = password.getText();
        usernameInput = username.getText();
        if (passwordInput != null
                && usernameInput != null
                && passwordInput.equals("password")
                && usernameInput.equals("harry")) {
            frame.setTitle("Success");
            label.setForeground(Color.green);
            label.setText("Access granted");
        } else {
            frame.setTitle("Access Denied");
            label.setForeground(Color.red);
            label.setText("Access Denied");
        }
    }