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I have an abstract class Vehicle with 2 implemented subclasses RedVehicle and YellowVehicle . In another class I have a List<Vehicle> containing instances of both subclasses. I want to be able to pass into a method a class type and then use that type to decide which set of objects I want to do something to in the List . Since Class is generic I should parameterise it with something, however putting the parameter as the parent class Vehicle stops the calling code working since exampleMethod is now expecting a type of Vehicle, not a subclass of RedVehicle or YellowVehicle . I feel there should be a clean way to do this so what would be the correct way to implement the functionality? n.b. I don't necessarily have to pass in the Class type, if there are better suggestions I'd be happy to try those. Calling code: service.exampleMethod(RedVehicle.class); service.exampleMethod(YellowVehicle.class); Fields/Method: //List of vehicles //Vehicle has 2 subclasses, RedVehicle and YellowVehicle private List<Vehicle> vehicles; //Having <Vehicle> as the Class parameter stops the calling code working public void exampleMethod(Class<Vehicle> type) { for(Vehicle v : vehicles) { if(v.getClass().equals(type)) { //do something } } }

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