This week's book giveaway is in the Android forum.
We're giving away four copies of Head First Android and have Dawn & David Griffiths on-line!
See this thread for details.
The moose likes JDBC and Relational Databases and the fly likes Dynamic 2d array size? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Head First Android this week in the Android forum!
JavaRanch » Java Forums » Databases » JDBC and Relational Databases
Bookmark "Dynamic 2d array size?" Watch "Dynamic 2d array size?" New topic

Dynamic 2d array size?

Derek Rose

Joined: Apr 21, 2013
Posts: 10
i have a 2d array that i am filling with data from an sql database. I would like the table to only be as big as the size of the database. 24 rows fit in the JScrollPane before the auto scroll starts so 24 as a default could be do i change it so i dont get an out of bounds exception once i go past 24?

i tried to make a loop that went through the results first and stored an index value...but then the table displays blank.

then use length instead of 24

But just displays a blank is the correct size table though
Derek Rose

Joined: Apr 21, 2013
Posts: 10
sorry, dumb mistake i fixed it
Campbell Ritchie

Joined: Oct 13, 2005
Posts: 43295
Derek Rose wrote:i have a 2d array . . .
No, you haven’t. You have an array of arrays, which is different. And better.

Never use == true or == false.
What a strange loop! Was that what you had to fix?
Derek Rose

Joined: Apr 21, 2013
Posts: 10
I needed to execute a different query for each loop. And I started learning Java last month and your the third person to tell me my logic is weird. That's just the way the solution comes to me haha
I agree. Here's the link:
subject: Dynamic 2d array size?
It's not a secret anymore!