import java.util.ArrayList; import java.util.List; import java.util.concurrent.*; import static java.lang.Math.cos; import static java.lang.Math.sin; public class Main { static final int SIZE = 10000000; public static void main(String[] args) { System.out.println("Time of serial method: " + countArraySerial()); System.out.println("Time of parallel method: " + countArrayParallel()); } private static long countArraySerial() { float[] arr = new float[SIZE]; for (int i=0; i> list = new ArrayList<>(); CallableCounter thread1 = new CallableCounter(a1,0); CallableCounter thread2 = new CallableCounter(a2,1); //вычисляем результаты свободными потоками list.add(executor.submit(thread1)); list.add(executor.submit(thread2)); //соединяем результаты try { System.arraycopy(list.get(0).get(),0,arr,0,h); System.arraycopy(list.get(1).get(),0,arr,h,h); } catch (InterruptedException | ExecutionException e) { e.printStackTrace(); } executor.shutdown(); return System.currentTimeMillis() - beginTiming; } }