Here you can find the source of timeSince_MILLIS(long start_PMILLIS)
public static long timeSince_MILLIS(long start_PMILLIS)
//package com.java2s; public class Main { public static long timeSince_MILLIS(long start_PMILLIS) { return (System.currentTimeMillis() - start_PMILLIS); }//from w w w . ja v a2s . co m }