Is it possible to use a primitive type (int) in as a generic type in Java?

Question

Specifically, with a SortedMap<Vector<String>, int> I get "dimensions expected after this (int) token." Help!

Konrad Rudolph · Accepted Answer · 2009-01-05 20:34:41Z

35

No, this is not possible. Use Integer instead. Autoboxing takes care of the rest (i.e. for most purposes you can program as if you had actually used int because Java converts to and from Integer automatically for you).

answered Jan 5, 2009 at 20:34

Konrad Rudolph

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3 Comments

Konrad Rudolph Over a year ago

@willcode…: You figured me out. :-/ If not for the badge, I would have given a wrong, thoroughly misleading answer that would have led the OP on a merry goose chase through the internet. Now, quick, get off the Internet. It's dangerous out here.

willcodejavaforfood Over a year ago

If not for the badge you would not have posted the question at all I suspect :)

Konrad Rudolph Over a year ago

@willcode…: I have not posted the question. I've just corrected the formatting.

Craig P. Motlin · Accepted Answer · 2009-01-05 20:54:48Z

3

Konrad is correct. Alternately, you can use the trove class TObjectIntHashMap to map Objects to primitive ints.

answered Jan 5, 2009 at 20:54

Craig P. Motlin

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