scala
val numbers = (1 to 100).toVector
val sum = numbers.par.map(_ * 2).reduce(_ + _)
println(sum)
public class Main {
public static void main(String[] args) throws InterruptedException {
int sum = 0;
int[] numbers = new int[100];
for (int i = 0; i < numbers.length; i++) {
numbers[i] = i + 1;
}
Thread[] threads = new Thread[10];
for (int i = 0; i < threads.length; i++) {
final int start = i * 10;
final int end = (i + 1) * 10;
threads[i] = new Thread(() -> {
for (int j = start; j < end; j++) {
numbers[j] *= 2;
}
});
threads[i].start();
}
for (Thread thread : threads) {
thread.join();
}
for (int number : numbers) {
sum += number;
}
System.out.println(sum);
}
}
