How to display null elements in arraylist as 0(zeros)?

[Shepard]

I am preparing an application which takes information and displays it..
I used arraylist to get elements from database..

ArrayList<String> noD = new ArrayList<String>();

In above line noD=No. of Days..

This is how I get data

noD.add(rs1.getString("noD"));

using for loop i display the data as

noD.get(loop variable)

There are certain noD in database which has no value and it is displayed as null and others as it is....

Now I want to display these null elements as 0... how to achieve that....

[Shepard]

got it....
I figured it out....

[Nepomuk]

Well done for solving the problem, Shepard. Would you care to share your solution so that others with similar problems can find it in the future?

[Shepard]

before displaying the output simply added an if condition which checks for null values and replaces it with 0.
I am a newbie..
It was a newbie doubt..

[Nepomuk]

It may be a newbie question, but we all start as newbies. So thanks for sharing your solution.