http://gochev.org/2010/07/using-of-collectionsemptylist-right-way.html
상당히 재미 있는 코드 스타일,
작은 것에서 차이가 날 수 있겠다.
Answer 5: The right but strange looking answer.
Book myCrazyBook=new Book();
myCrazyBook.setTitles(Collections.<String>emptyList());
Yes this is not a joke there is a dot (.) then the generic type before the method name. This compiles, runs, no warnings thats the real way.
It is a little strange that most people dont know this aspect of generics in Java even I didn't know it, I was thinking that you cannot pass a generic type like this but as it looks you can.So if you have some static method like this one:
public class Main{
public static <G> List<G> someGreatMethod(){
List<G> gList= new ArrayList<G>();
return gList;
}
}
you can invoke it with Main.<String>someGreatMethod(); for example.
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