将通用方法C＃的类型设置为Java

Question

I just started coding in Java again and I'm converting some code from C# into Java for a small project, to get started in Java again. My problem is with how to specify what type of instance I want back from a generic method. In C# I'd do something like this:

const int B = 1;
const int C = 2;
int classType = a given value
ClassB : ClassA
ClassC : ClassA

private ClassA CreateClone(ClassA classToBeCloned){
    switch(classType){
        case B:
            return classToBeCloned.CreateClone<ClassB>(); 
        case C:
            return classToBeCloned.CreateClone<ClassC>();
    }
    return null;
}

And as such as above I can retrieve different implementations of ClassA depending on the variable classType. However, in Java I cannot do (or atleast the Netbeans 8.0 IDE signals error when doing it) the same. Basically I cannot tell the method what type I want back (call below is what I want in java):

classToBeCloned.CreateClone<Class*>();
Where * = B or C

So how do I specify what type the method should send back? (More like,what T should be inside the method)

Might be diffuse, not an expert in expressing myself properly, haha. All help appreciated!

Answer 1

您只需要将通用信息放在Java的其他位置即可：

return classToBeCloned.<ClassB>CreateClone();