Simple for loop problem

[mrDrive]

Hi,

I'm very new to JSP. When I use a for loop to iterate through an array, it always prints "null" at the end of the loop.

Here's how I'm using it:

String[] myArray = request.getParameterValues("selectElement");
int i;
for (i=0; i < myArray.length; i++) {
out.println("myArray[" + i + "]</strong> = " + myArray[i] + "<br>");
}

Thanks for any help!

 

[dexter195]

i presume the array is storing the values of checked checkboxes. it could be the value of the last checkbox thats passing null.

 

[mrDrive]

No, it's actually (in this case) a select element with the multiple attribute added. So when I use "request.getParameterValues" it treats it as an array.

I've got the same problem when I use a for loop on an different array:

String CommaDeleneatedString = RecordSet.getString("DatabaseField");
String[] myArray = CommaDeleneatedString.split(",");
for (i=0; i < myArray.length; i++) {
   out.println("myArray[" + i + "]</strong> = " + myArray[i] + "<br>");
}

 

[venur]

Hi,

I think the String CommaDeleneatedString might have null at the end.
ex:String CommaDeleneatedString = "one,two,three,four,null";

Cheers
Venu