Inner Class JAVA

public class SocialMedia {
    private class Facebook {
        private String Founders = "Mark Zuckerberg, Andrew McCollum, Dustin Moskovitz, Eduardo Saverin, Chris Hughes";
        private String Founded = "February 2004, Cambridge, Massachusetts, United States";
        private String Link = "https://www.facebook.com/";
        private void Show() {
            System.out.println("Facebook Founders   : " + Founders);
            System.out.println("Facebook Founded    : " + Founded);
            System.out.println("Facebook Website    : " + Link);
        }
    }

    private class Twitter {
        private String Founders = "Jack Dorsey, Biz Stone, Evan Williams, Noah Glass";
        private String Founded = "March 2006, San Francisco, California, United States";
        private String Link = "https://www.twitter.com/";
        private void Show() {
            System.out.println("Twitter Founders    : " + Founders);
            System.out.println("Twitter Founded     : " + Founded);
            System.out.println("Twitter Website     : " + Link);
        }
    }

    private class WhatsApp {
        private String Founders = "Jan Koum, Brian Acton";
        private String Founded = "February 2009";
        private String Link = "https://www.whatsapp.com/";
        private void Show() {
            System.out.println("WhatsApp Founders   : " + Founders);
            System.out.println("WhatsApp Founded    : " + Founded);
            System.out.println("WhatsApp Website    : " + Link);
        }
    }

    public static void main(String[] args) {
        SocialMedia out = new SocialMedia();
        SocialMedia.Facebook f = out.new Facebook();
        SocialMedia.Twitter t = out.new Twitter();
        SocialMedia.WhatsApp w = out.new WhatsApp();

        System.out.println("--------------------------------------------------------------------------------------");
        f.Show();

        System.out.println("--------------------------------------------------------------------------------------");
        t.Show();

        System.out.println("--------------------------------------------------------------------------------------");
        w.Show();
    }
}