import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.ArrayList;
import java.util.List;
public class GenericReflect {
public static void main(String[] args) {
TypeVariable[] tv = List.class.getTypeParameters();
System.out.println(tv[0].getName()); // E
class StringList extends ArrayList {
}
Type type = StringList.class.getGenericSuperclass();
System.out.println(type);
ParameterizedType pt = (ParameterizedType) type;
System.out.println(pt.getActualTypeArguments()[0]);
}
}