String Array Equated to a Cursor.getstring() gives me NullPointer Exception

Question

This is my code from my android project where i would want to store each string element from the cursor to a string array, but i keep getting NullPointer Exception.

The Code is Down Below, series2Strings[] is the string array i have defined,

int k=0;
        if(cur.moveToFirst()){
            while(!cur.isAfterLast()){

                Log.i("String", " "+ k + " " + cur.getString(1));
                series2Strings[k]=cur.getString(1);
                k++;
                cur.moveToNext();
            }
        }


        cur.close();

The data is available at the cursor because i have checked it in the logcat by using the log statement. Can anyone please point what's going wrong.

maybe your array series2Strings is not initialized

MalaKa
– MalaKa

2013-03-19 13:38:10 +00:00
Commented Mar 19, 2013 at 13:38 — MalaKa
– MalaKa, Commented Mar 19, 2013 at 13:38

Nermeen · Accepted Answer · 2013-03-19 13:39:17Z

1

You need to initialize your string array first..

series2Strings = new String[cur.getCount()];
int k=0;
if(cur.moveToFirst()){
    while(!cur.isAfterLast()){

      Log.i("String", " "+ k + " " + cur.getString(1));
       series2Strings[k]=cur.getString(1);
        k++;
         cur.moveToNext();
       }
 }
 cur.close();

answered Mar 19, 2013 at 13:39

Nermeen

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2 Comments

CVA Over a year ago

I've got the output in the logcat, but just after it comes out of the loop it goes into NullPointerException and the app closes. Should i use try/catch or is there any recification.

CVA Over a year ago

I got it, could able to remove the NullPointerException by adding a if inside the while loop. Thanks

Furqi · Accepted Answer · 2013-03-19 13:45:23Z

0

final int length = cur.getCount();
series2Strings = new series2Strings[length];

answered Mar 19, 2013 at 13:45

Furqi

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