Java - System.currentTimeMillis(); Not Returning Difference

Question

For some reason I am getting a consistent 3600 returned by the function:

private static long getCountdownLeft() {
    long now = System.currentTimeMillis();
         


        

Answer 1

Your code will consume little time before invoke getCountdownLeft. try update this code :

    public static void Main(String[] args) throws InterruptedException {
    long gameTime = System.currentTimeMillis(); // pass the current time
    Thread.currentThread().sleep(1000); // sleep one second before invoke getCountdownLeft
    System.out.println("Time is " + getCountdownLeft(gameTime));
}