If you want to locate a hashtag, just do a string.indexOf("#") (or whatever the correct syntax for Java is), and then go from there as to how you interpret the hashtag. To achieve the 140-character limit, you just need some Boolean logic:

 if(string.length() > 140)
newstring = string.substring(0,140);
string = newstring;

Or do it in your while loop - while(line.hasNext() && index <140).
Sorry, some of the syntax might be incorrect - it's been a while since I worked with Strings in Java. But the general idea should work.

If you're using Eclipse, press Ctrl-O to automatically import the needed libraries for your code. If not, I'd double-check to make sure you've spelled everything correctly and referenced the correct libraries - some Android objects have a Java class and an Android class, and you have to make sure you choose the right one (usually Android).

That's a really interesting idea. I like to post my apps on the Market so that my friends and testers can download them quickly and easily, but since they're in beta (essentially), I post them for free and not for a price. Problem is, you can go from paid -> free but not free -> paid. Something like this - a coupon system where you can allow restricted access based on coupons - could really help with that.

Thanks for the ideas!

All right, here's the link: http://goo.gl/ZonHA Thanks a bunch! And sure, I'll check out your app, too.

Well, I think I'll be okay on the risk - I am reviewing all of the code and rebuilding it myself, so there will be no malicious software. If I see anything suspicious, I won't host it, simple as that. And I'm not sure exactly why he can't sell it himself - some of the Android licensing stuff is pretty weird, as far as I know. I don't really account with it much, I just mark as many country boxes as are available to me. He's based in the UK, so I really don't know why he wouldn't be allowed to sell in the US, but if there's a chance to make some money off of it, I'll just have to be careful. I'm a college student, so pocket money is always appreciated. XD