public class countable{

public static int instanceCount = 0; public countable() { instanceCount++; } public int getInstanceCount() { return instanceCount; } public static void main(String[] args) { int objectcount; countable object = new countable(); countable semi = new countable(); countable hydro = new countable(); countable liquid = new countable(); objectcount = object.getInstanceCount(); System.out.println(objectcount + " instance of the class were created."); }

}

This is the program of counting the number of instance of the class. But how to know the name of the instances