// Logger Example
// Source code file Main.java.
// Illustrate the Singleton software pattern.
// Only one instance of a singleton class is allowed.
// This is accomplished by using a private constructor.

public class Main {

    public static void main(String[] args) {
        Logger logger1 = Logger.getInstance();
        logger1.writeLogEntry("Steve",
                "Router on floor 7 needs repair");

        Logger logger2 = Logger.getInstance();
        logger2.writeLogEntry("Elaine",
                "Printer on floor 4 needs a software upgrade");
    }
}