Vector Null Exception

[timmbo]

Hi All,

I have a method called to format data to a vector a certain way. Everything goes fine adding my format to a string myResults in j==3 if but when the code attempts to load the vector, acctResults.addElement(myResults);, I get a null pointer exception.

This is the call to the method:

...
 formatedResults = getACHFormatedAccouts(results);
...

Here is the called method:

public Vector getACHFormatedAccouts(Vector _unFormattedAccts) throws ISCException {	
  Vector acctResults = null;
		
  String myName = null;
  String myID = null;
  String myAchNbr = null;
  String myResults = null;
		
  int j = 0;
		
  for(int i=0; i < _unFormattedAccts.size(); i++) {
    j = j + 1;
			
    if (j == 1) {
      myName = (String)_unFormattedAccts.elementAt(i);		
    }
    if (j == 2) {
      myID = (String)_unFormattedAccts.elementAt(i);
    }
    if (j == 3) {
      myAchNbr = (String)_unFormattedAccts.elementAt(i);
      myResults = myName.trim() + " [" + myID.trim() + "] [" + myAchNbr.trim() + "]";
      System.out.println("******myResults is ... " + myResults);
      acctResults.addElement(myResults);
      System.out.println("*****After results.addElement...");
      j = 0;
    }
  }
  return acctResults;
}

Any suggestions/comments would be most appreciated.

TIA,
Tim

 

[timmbo]

I should have mentioned that variable myResults is not null.
[5/2/05 14:40:17:745 EDT] 3cbafc2d SystemOut O ******myResults is ... ABC Co [ABC] [9876543210]

 

[venur]

Hi,

Where are you initializing the Vector acctResults in getACHFormatedAccouts(Vector _unFormattedAccts);

Vector acctResults = null;

acctResults = new Vector();

Cheers
Venu

 

[timmbo]

It's in public Vector getACHFormatedAccouts(Vector _unFormattedAccts) throws ISCException {
Vector acctResults = null;

 

[timmbo]

That did Venur. Thanks for the help...

 

[venur]

Hi,

In your code you are not creating a vector object you have initilized it to null. And your are trying to add an element to a null vector object which will trow a null pointer excpetion.

public Vector getACHFormatedAccouts(Vector _unFormattedAccts) throws ISCException {    
  Vector acctResults = null;
  // add this line of code
  [COLOR=red]acctResults = new Vector()[/color red];      
  String myName = null;
  String myID = null;
  String myAchNbr = null;
  String myResults = null;
        
  int j = 0;
        
  for(int i=0; i < _unFormattedAccts.size(); i++) {
    j = j + 1;
            
    if (j == 1) {
      myName = (String)_unFormattedAccts.elementAt(i);        
    }
    if (j == 2) {
      myID = (String)_unFormattedAccts.elementAt(i);
    }
    if (j == 3) {
      myAchNbr = (String)_unFormattedAccts.elementAt(i);
      myResults = myName.trim() + " [" + myID.trim() + "] [" + myAchNbr.trim() + "]";
      System.out.println("******myResults is ... " + myResults);
      acctResults.addElement(myResults);
      System.out.println("*****After results.addElement...");
      j = 0;
    }
  }
  return acctResults;
}