Exception thrown trying to convert string to int

Hey Guys,
i imported a csv file into my app which i divide using the split() method and put into an array then I divided the array into variables;
fruit = piece[0];
price = piece[1];
unit = piece[2];Now since price has to be a double i converted it into a double;
price2 = Double.parseDouble(price);which worked grand
but when i try to convert unit to an integer
unit2 = Integer.parseInt(unit);i got error
Exception in thread "main" java.lang.NumberFormatException: For input string: "3
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
so i tried removing white spaces as follows
target = unit.replace(" ", "");which worked and displayed grand, then i tried converting to int again but the same exception was thrown, can anyone help me with this problem, thanks
mark

sorry for the messed up format previously.
Like you said the unit.replaceAll(" ", ""); did not do the trick, when displayed as a string it looked like 3 was on its own but still did not convert to int. I assume line break or something existed in the csv file like you mentioned earlier as unit was the last word in the csv file.
when i used unit.trim(); and tried to convert to integer it worked perfectly.
thanks all for your help,
Mark

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