Class as a parametr when counting instances of classes

Question

I have class Counter with a method add which will count instances of any classes when creating but I get "The method add(Class) in the type Counter is not applicable for the arguments (MyClass)" How can I fix it? What should I type instead of Class<?> c?

public class Counter
{
    static Map<String, Integer> map = new HashMap<String, Integer>();

    public static void add(Class<?> c) 
    {
            String name = c.getClass().getSimpleName();
            int count = list.containsKey(name) ? map.get(name) : 0;
            map.put(name, count + 1);
    }
}

public class MyClass
{  
    public MyClass()
    {
        Counter.add(this); 
    }

Answer 1

I agree with @Rohit Jain that it should be Object. I however want to suggest parameterized version of add() method:

public static <T> add(T obj) {
    Class<?> clazz = obj.getClass();
    // your implementation
}

Parameterized versions look better.