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Applet Local Security Exception

I am trying to run basic hi Java applet in my browser, but I keep getting "Application blocked by security settings" with the following message:

SecurityException: your security settings blocked the local application from starting

I tried to change the security settings using the Java control panel , but there is no slider, just certificates.

I get the same error when trying to open a .html file in other browsers.

Applet code:

import javax.swing.*;
import java.awt.*;

public class HelloWorldApp extends JApplet
{
    public void init()
    {
        JLabel label = new JLabel("Hello World");
        add(label);
    }
}

HTML

<!DOCTYPE html>
<html>
<head></head>    
<body>    
   <applet code="HelloWorldApp.class" width="300" height="100"></applet>    
</body>    
</html>

Question . How can I make the applet work? Rather, how to change the security settings so that the applet runs locally, if this is a problem, and not something else?

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"Use a web server to test examples in this lesson. Using local applets is not recommended, and local applets are blocked when the security level in the Java control panel is set to High or Very high."

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