Authenticating password and username after jbutton click

Below is the error i receive after entering correct username and password. How can I correct this? I have 1 textfield for username and password field for password.


Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem:
Cannot invoke compareTo(String) on the array type char[]
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actionlistener:

public void actionPerformed(ActionEvent e) {

        if(e.getSource() == loginButton)
        {
            if(usernameField.getText().compareTo("Matt") == 0 &&  passwordField.getPassword().compareTo("password") == 0)
            {
            	
            	JOptionPane.showMessageDialog( null, "Logging in.....");		 
                
            }
            
            else
            {
            	JOptionPane.showMessageDialog( null, "Incorrect Details, Please check and try again" );
            }

        }
    }