package iotcloud; class TimingSingleton { private static TimingSingleton singleton = new TimingSingleton( ); private static long startTime = 0; private static long totalTime = 0; private TimingSingleton() { } public static TimingSingleton getInstance( ) { return singleton; } public static void startTime( ) { startTime = System.nanoTime(); } public static void endTime( ) { totalTime += System.nanoTime() - startTime; } public static long getTime( ) { return totalTime; } }