Java program that spins up 5*#cores CPU-bound threads

CpuCoreHog.java

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class CpuCoreHog {
    public static void main(String[] args) {
        // Get the number of available processors (cores)
        int cores = Runtime.getRuntime().availableProcessors() * 5;
        System.out.println("Running on " + cores + " cores.");
        // Create a fixed thread pool with the number of available cores
        ExecutorService executorService = Executors.newFixedThreadPool(cores);
        // Define the task that will hog the CPU
        Runnable task = () -> {
	    System.out.println("start");
            int result = 0;
            while (true) {
                for (int i = 0; i < 1000; i++) {
                    for (int j = 0; j < 1000; j++) {
                        result += (i * j) ^ (i + j) % (i + 1);
                        result -= (i - j) * (j + 1) / (i + 1);
                        result ^= (i * 3) + (j * 2) - (i / 2);
                    }
                }
            }
        };
        // Submit the task to all available cores
        for (int i = 0; i < cores; i++) {
            executorService.submit(task);
        }
        // Shutdown the executor (though this program will run indefinitely)
        executorService.shutdown();
    }
}