On my way to my solution store just found this nice to use, old and easy feature. Possibilities endless, usage typically very easy. I used the following to generate XML from sqlplus: select dbms_xmlgen.getxml(‘select * from user’) from dual; Output: < ROWSET > < ROW > < TNAME >Employee< / TNAME > < TABTYPE > […]

Doing the Locale – Danmark

The following illustrates how to get the Number format working with a danish locale. import java.text.NumberFormat;import java.util.Currency;import java.util.Locale;  public class TestLocale {  public static void main(String args[]){ // Create a Locale for Danmark Locale DANMARK = new Locale("da","DK");  // get the currency instance for this locale. Currency krone = Currency.getInstance(DANMARK);  // Get a Number format for […]

How to read a file from the JAR?

Someone just asked me this question today. And I thought might as well put it down for info. public TestReadFileFromJar() throws FileNotFoundException, IOException { InputStream is = getClass().getResource("txtData/"); read(is);} In the case above txtData is placed in the jar on the root. Remmember to add the path with the /


By using the command pattern you are seperating the operation from the invoking object. And just because of that it becomes easier to change the command without chagning the caller/s. This means that you could use Command pattern when you might have the following situation You want to parameterize objects to perform an action You […]

Implementing the adapter

Typically when implementing an interface you would have to implement all the methods that exist in that interface. A very good example is the MouseListener in the java Swing. When you need to implement more then one method where as typically you might be catching only one of them. Saying that you would also find […]

Abstract Factory pattern

Factories have been a key pattern in building applications, its fascinatingly simple, effective and to the point. When starting to learn a design oriented approach to applications or API, I would always recommend a factory pattern as one of the key starting notes of highlight in your design. So today I am talking about the Abstract Factory […]

Quick start Singleton – Walk through

This being my first existence on the network and I just want to make sure that I would come back to this blog page again sometime and keep on writing. For now this is a quick 5 min walk through of getting your hands dirty on the Singleton Pattern. As any ones first pattern Singleton […]