nothing

public class InstanceCounter {
	 private static int numInstances = 0;
	   protected static int getCount() {
	      return numInstances;
	   }
	 
	   private static void addInstance() {
	      numInstances++;
	   }
	 
	   InstanceCounter() {
	      InstanceCounter.addInstance();
}

public static void main(String[] arguments) {
    System.out.println("Starting with " +
    InstanceCounter.getCount() + " instances");
    for (int i = 0; i < 500; ++i){
       new InstanceCounter();
        }
    System.out.println("Created " +
    InstanceCounter.getCount() + " instances");
 }
}