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Easy Learn Java: Programming Articles, Examples and Tips - Page 58


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How can I in Java convert this string 23AB to its hexadecimal representation 323

Go to all tips in General Java

Question: How can in Java I convert this string 23AB to its hexadecimal representation 32334142. Is there any method that can do that easily? Or how could I write this function?

Answer: It is easy indeed:

Use parsing functions form Java API's class Integer...

Integer.parseInt(String s, int radix)
(for hexadecimal radix=16)
and
Integer.toHexString(int i).

It is good idea to add NumberFormatException handling



3 comments | Printer Friendly Page  Send to a Friend | Score: 3.33
Posted by jalex on Thursday, July 03, 2003 (00:00:00) (12222 reads)

I have a binary flat-file database that I need to access via JDBC. How do I crea

Go to all tips in Databases

Question: I have a binary flat-file database that I need to access via JDBC. How do I create a driver that I can use?

Answer: Read SUN's specifications on
http://java.sun.com/products/jdbc/
As written there "the new JDBC API, it also provides access to other tabular data sources, such as spreadsheets or flat files..."

Also take a look at RmiJdbc on:
http://www.objectweb.org/rmijdbc/index.html - open source software.

***************************************
Our older tips: March 22, 2001 - October 21, 2002 read here.
All published and not published on the site tips you can find here



34 comments | Printer Friendly Page  Send to a Friend | Score: 3.66
Posted by jalex on Wednesday, July 02, 2003 (06:39:48) (6554 reads)

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