import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;

public class Main {
    public static class Test {
        long t;
        long[] tA = new long[1024*1024];
        public Test(long t) {
            this.t = t;
            this.tA[(int)t] = t;
        }
        public long getTa() {
            return this.tA[(int)this.t];
        }
    }
    public static class Res {
        long times, ms;
        public Res(long times, long ms) {
            this.times = times;
            this.ms = ms;
        }
    }
    public static Res getGCStats() {
        long totalGarbageCollections = 0;
        long garbageCollectionTime = 0;

        for(GarbageCollectorMXBean gc : ManagementFactory.getGarbageCollectorMXBeans()) {
            long count = gc.getCollectionCount();
            if(count >= 0) {
                totalGarbageCollections += count;
            }
            long time = gc.getCollectionTime();
            if(time >= 0) {
                garbageCollectionTime += time;
            }
        }

        return new Res(totalGarbageCollections, garbageCollectionTime);
    }

    public static void main(String[] args) {

        Test t = new Test(1);
        System.out.println("Start");
        while (t.t < 10000L) {
            t = new Test(t.getTa()+1);
        }
        var res = getGCStats();
        System.out.println("Total collections: "+res.times);
        System.out.println("Total time in ms:  "+res.ms);
        System.out.println("MS per run:        "+((double)res.ms/(double)res.times));
    }
}