java - If there's only one thread running(main) and sleep(1000) is invoked, will the thread sleep for exactly 1 second or atleast 1 second? -


in below code: 

 class test {       public static void main(string [] args) {            printall(args);       }       public static void printall(string[] lines) {            for(int i=0;i<lines.length;i++){                 system.out.println(lines[i]);                 thread.currentthread().sleep(1000);            }       }  }

will each string in array lines output:

  1. with exactly 1-second pause between lines?
  2. with at least 1-second pause between lines?

approximately 1-second pause. thread can woken beforehand , you'll interruptedexception, or thread can sleep 1000ms , not run immediately, 1000ms + microseconds (or more, if there higher priority threads hogging cpu).

you're calling wrong. it's thread.sleep(1000);, static method acts on current thread , can't make other threads sleep it.


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