Reading from a URL and storing in an ArrayList in JAVA

Question

I'm trying to read from the URL below which appears to work but when I try to store it in the ArrayList it gives me an error. Any ideas on whats causing the error?

public abstract class ItemList implements ItemListInterface{

private static String inputLine;
private static ArrayList<String> wordArray;

public static void main(String[] args) throws Exception {
    URL wordList = new URL("http://dl.dropbox.com/u/18678304/2011/BSc2/phrases.txt");
    BufferedReader in = new BufferedReader(
            new InputStreamReader(
                    wordList.openStream()));



    while ((inputLine = in.readLine()) != null){
        System.out.println(inputLine);
        wordArray.add(inputLine);
    }
    in.close();
   }
 }

aaa Exception in thread "main" java.lang.NullPointerException at ie.wit.bsc2.autosuggest.ItemList.main(ItemList.java:24) — Timmjy Morrissey
– Timmjy Morrissey, Commented Oct 7, 2011 at 10:42

KV Prajapati · Accepted Answer · 2011-10-07 10:39:05Z

6

You forget to instantiate the ArrayList<String>.

answered Oct 7, 2011 at 10:39

KV Prajapati

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