Confused - getting wierd results

Question

NOTE: Please keep the explanations very simple - I'm a computer science/biology student working as an intern, and I probably don't have as much experience as some of the professional software engineers who write into this forum.
I'm trying to create a simple database application.
I am able to add a protein to the database I've created, but I keep running into problems when I try to retrieve the ProteinID ("pid")
from the database.
When I run the code that I have included at the end of this message, I get some very wierd results. A few times I was actually able to retrieve the correct pid, but most of the time my program just outputs 0.0 for The_Source_ID.
The only thing that I changed when between runs of this program is whether I use the code
double The_Source_ID;
The_Source_ID = TheInterface2.getSourceID_Protein(ProteinName);
System.out.println("The Source ID is " + The_Source_ID);
before or after the AddProtein() function.
Also, once when I ran my program, I got the error message....
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x771E312E
Function=CoGetComCatalog+0xD88
Library=C:\WINDOWS\system32\ole32.dll
On another post where someone asked about this problem, ....
http://forum.java.sun.com/thread.jsp?forum=37&thread=235942
http://forum.java.sun.com/thread.jsp?forum=37&thread=213559
-- The problem is that I don't have a full understanding of what the responses to the above posts mean. ---- I don't understand how my code can be incorrect if my program occassionally gives me the correct results.
Any ideas?
public void AddProtein() {
     System.out.println("");
     System.out.println("You may add this protein.");
     TheInterface2.AddProtein_ByName(ProteinName);
     GUI_ProteinDetails ProteinDetails = new GUI_ProteinDetails();
     ProteinDetails.initWithProteinName(ProteinName);
     double The_Source_ID;
     The_Source_ID = TheInterface2.getSourceID_Protein(ProteinName);
     System.out.println("The Source ID is " + The_Source_ID);
     System.out.println("");
}

Answer 1

sorry about that
----- i realized my error just after posting this message