Default list model and generics JAVA

Question

When I looked at the API specification default list model it stated the class uses generic. When I went to create an instance of the class, it didn't need it or permit it. How are generics integrated with DefaultListModel, and how can it be used?

Thanks :-)

ulmangt · Accepted Answer · 2012-04-14 04:40:12Z

2

You never need to use generics because it's simply a compile time check (see Type Erasure for more details).

Essentially, once your code is compiled, generic type information is stripped away, so it's never necessary for your code to run correctly. Generics simply provide a way for the compiler to perform static checks to make sure that you are using types in a consistent/safe manner.

answered Apr 14, 2012 at 4:40

ulmangt

5,4233 gold badges25 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

rubixibuc Over a year ago

I knew that going in, but if I choose to use generics why doesn't it let me?

rubixibuc Over a year ago

I solved the issue, I'm using se 6 and in se 6 it's not generic :-(

rubixibuc Over a year ago

I assumed it was generic as of se 6 as well

ulmangt Over a year ago

You can't assign a generic type to an instance of a class unless the class definition requires one. There would be no benefit to allowing you to do so since the only benefit is type checking and that benefit comes from the return values and method arguments of the class's functions taking arguments of the generic type.

Collectives™ on Stack Overflow

Default list model and generics JAVA

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related