Split string and joining substrings

[KarlNorway]

I use a DOM parser to get the attributes and they are always present. The xml file is used by other SW to write ID into stuff. Some of the attributes are empty ( like this Value = " ").

This is the code to get the Item attributes

private void parseDocument(){
		//get the root elememt
		Element docEle = dom.getDocumentElement();
		
		//get a nodelist of <employee> elements
		
		NodeList nl = docEle.getElementsByTagName("Item");
		if(nl != null && nl.getLength() > 0) {
			for(int i = 0 ; i < nl.getLength();i++) {
				
				//get the employee element
				Element el = (Element)nl.item(i);
				
				//get the Employee object
				Item e = getItem(el);
				
				//add it to list
				myEmpls.add(e);
			}
		}


private Item getItem(Element empEl) {
		
		String ItemNo = empEl.getAttribute("ItemNo");
		String Name = empEl.getAttribute("Name");
		String Value = empEl.getAttribute("Value");
		String Config = empEl.getAttribute("Config");
		
		Item e = new Item(ItemNo, Name, Value, Config); // this is the way I would like the array(s) to come out and be put in the table
		
		return e;
	}

There is a setter getter class called Item also. This is taken from a example I might have to rewrite all the code or at least some of it.

Hopes this clarify some

[Norm]

Please explain what your problem is now?
How does your posted code answer the questions I asked in post#20?

[KarlNorway]

Probaly not straight out but Ill try to elaborate.

I get each attribute out of the xml node as a single string using the getter/ setter class.
Then the single strings are added to an Item element array ( I think) and returned to a (object)list
I have tried to get the Item array to the table but without sucsess.

Still the same problem ( Im really a n00b lol)

[Norm]

I get each attribute out of the xml node as a single string

If you get the attributes one by one, then where is the problem putting them into an array?
Why did you use the split method in the earlier code? How did they get into one String?

[KarlNorway]

This is the way they get into one string:

Iterator it = myEmpls.iterator();
		while(it.hasNext()) {
			Item = it.next().toString();
			sbi.append(Item);

Here is snippet from where I get the attributes into strings

private Item getItem(Element empEl) {
		
		String ItemNo = empEl.getAttribute("ItemNo");
		String Name = empEl.getAttribute("Name");
		String Value = empEl.getAttribute("Value");
		String Config = empEl.getAttribute("Config");
		
                Items = {ItemNo, Name, Value, Config}; // Defined as a String [] in top of class		

		Item e = new Item(ItemNo, Name, Value, Config);
		
		return e;
	}

As far as I know: when i try to make the output from this I get this Array constants can only be used in initializers error in eclipse




Like i said I will problaly have to rework the code ( its not smart to copy paste code I have figured out)

[KarlNorway]

Im really not good at explaining the problem

I changed the Private Item getItem to private String [] getItem The program actually stopped responding. So no luck.

I have to read a bit more about this I think

[KarlNorway]

I am reworking my code and moving code from separate DOMparser class into main class and it seems to work (Yay for me) xD

[KarlNorway]

Good thing Im bald otherwise I would be by now ;)

So now i get a null point error on the table item thing.

Here is the code that makes it fail:

public void printData(){
Iterator it = myItems.iterator();
			while(it.hasNext()) {
				Item = it.next().toString();
				System.out.println(Item);  // gives this output: 319097,PCB SIO_1,0,1

 // splitting it into a array of four items
String delimiter = ",";
				 
				  XMLItem = Item.split(delimiter);
				   for(int i =0; i < XMLItem.length ; i++)
				    System.out.println(XMLItem[i]);
				  System.out.println(XMLItem.length);
//				  TableItem items = new TableItem(table, SWT.NONE); // when these tow lines are uncommented I get error. I have tried with this line above the while loop
//					items.setText(XMLItem);  
			}

Here is the error output

java.lang.IllegalArgumentException: Argument cannot be null
	at org.eclipse.swt.SWT.error(SWT.java:4263)
	at org.eclipse.swt.SWT.error(SWT.java:4197)
	at org.eclipse.swt.SWT.error(SWT.java:4168)
	at org.eclipse.swt.widgets.TableItem.checkNull(TableItem.java:123)
	at org.eclipse.swt.widgets.TableItem.<init>(TableItem.java:77)
	at view.Main.printData(Main.java:354)
	at view.Main.parseXML(Main.java:238)
	at view.Main.openXML(Main.java:224)
	at view.Main$2.widgetSelected(Main.java:117)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	at view.Main.open(Main.java:81)
	at view.Main.main(Main.java:65)

From the ine numbers in the error report I have found it to be the when I try to add to or open table

[Norm]

What variable is null? What value does table have?