Java String Tricks
  Posted January 30, 2003    PermaLink    Comments (0)  


if (request.getParameter("checkbox") != null &&

With StringUtils.equals(String, String), you get a little less coding:

if (StringUtils.equals(
request.getParameter("checkbox"), "true"))

If you're using Struts or some other library that already depends on commons-lang, why wouldn't you use it? Possibly performance reasons, but I doubt it causes much of a hit.

Actually, the latter implementation will perform better. It has half the hash lookups and HotSpot can inline the method invocation. [ crazybob ]

Actually, even easier than that....
 if ("true".equals(request.getParameter("checkbox")))
The string class already does the null check inside of the equals call and requires no exteranl library. I got this from an old C trick where whenever you are comparing somethingto null you put the null on the left side. If you accidentally type an assignment then the compiler will crash because a constant is not a valid LValue for an assignment.

Trackback URL
  TrackBack URL for this entry:
Post Comment

Thanks for signing in, . Now you can comment. (sign out)

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)

Remember me?

Email Address: