单例懒惰与渴望的实例化

您也可以调用任何其他静态方法或静态成员变量来加载单例实例。

class Logger {        private static Logger instance = new Logger();    public static String LOG_LINE_SEPERATOR =        System.getProperty("line.separator");   public static Logger getInstance() { return instance;        }   public static String logPattern() {       return null;   }}

…

Logger.LOG_LINE_SEPERATOR; // load Logger instance orLogger.logPattern(); // load Logger instance