JavaFX应用程序的处理注销按钮操作

Question

Here is part of my code that shows error. This is done inside public void start method. I have already done the Login part, whenever user logs in the id and password remains in the TextField. Which is why I have created a logout button so that when user clicks on it, I want the useridtextfield & passwordtextfield to be empty.

LogoutButton.setOnAction(e-> 
        UserIdTextField==null;    
        PasswordTextField==null;);

I have searched over the internet about this problem but got no solution regarding JavaFX Logout handling. I have no idea about FXML so I would appreciate any help.

Answer 1

The syntax for a lambda expression with multiple statements is

logoutButton.setOnAction(e -> {
    /* statements */
});

(Ie you need to delimit the statements with { ... } .)

As pointed out in the comments, comparing the text fields to null is probably not what you want to do here, but it will at least compile.