Java generic method that returns an instance of the passed params

Question

I want to create a method that has a signature like the following:

public Dao<ClassA,ClassB> createDao(ClassA param1, ClassB param2)

but this isn't valid Java. I want to create a method that receives any class creates an Dao object then returns the new object

public Dao<ClassA,ClassB> createDao(ClassA param1, ClassB param2) {
    //Do some stuff that creates an object of Dao<param1,param2>
    return Dao<param1,param2>;
 }

Any ideas on how to pull this off?

Thank you.

Answer 1

Try this:

public <A,B> Dao<A,B> createDao(A param1, B param2) {
    return ...
}

Answer 2

Manh answer is correct. If you're dealing with Class objects, then

public <T, K> Dao<T, K> createDao(final Class<T> t, final Class<K> k) {
    return new Dao<>();
}