泛型-如何返回T的图？

Question

class MyObject{}
class Human extends MyObject{}

public ConcurrentSkipListMap<String, <T extends MyObject>> get(Class<T> clazz, Object... vars){
    //...
}

//use the get() with
ConcurrentSkipListMap<String, Human> mapOfAllAdams = get(Human.class, "Adam");

However, the return value ConcurrentSkipListMap<String, <T extends MyObject>> gives compilation error, but <T extends MyObject>T is ok. What should I write instead?

Answer 1

Make these changes

class MyObject{}
class Human extends MyObject{}

public <T extends MyObject> ConcurrentSkipListMap<String, T> get(Class<T> clazz, Object... vars){
    //...

    return null;
}

//use the get() with
void hello(){
    ConcurrentSkipListMap<String, Human> x = get(Human.class, "Adam");
}

I declared <T extends MyObject> before the return type and also added a variable x to hold the return value of the get function.