import java.util.Vector;

public class GarbageCollector{
    public static void main(String[] args) {
		int SIZE = 200;
        StringBuffer s;
		for (int i = 0; i < SIZE; i++) {
		}
		System.out.println("Garbage Collection started explicitly.");
		long time = System.currentTimeMillis();
		System.gc();
		System.out.println("It took " + (System.currentTimeMillis()-time) + " ms");
        }
}