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POcan some 1 point out the null pointer exception
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  1. POcan some 1 point out the null pointer exception
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    copied!<p>I have edited the code and now the null pointer error is pointing inside the for loop their are less errors than before but i still dont't know why a nullpointer is called.</p> <pre><code> public class searchlist extends ListActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); new loadSomeStuff().execute(); } public class loadSomeStuff extends AsyncTask&lt;String, Integer, String[]&gt; { ProgressDialog dialog; protected void onPreExecute() { dialog = new ProgressDialog(searchlist.this); dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); dialog.setMax(100); dialog.show(); } @Override protected String[] doInBackground(String... arg0) { // TODO Auto-generated method stub for(int i =0; i&lt;20; i++) { publishProgress(5); try { Thread.sleep(80); } catch(InterruptedException e) { e.printStackTrace(); } } dialog.dismiss(); int loops = search_page.returnlooped(); int[] teacup = search_page.returnNumArray(); sqlStuff searching = new sqlStuff(searchlist.this); String[] IDSysNames = searching.getIDSysName(); searching.close(); String[] resultList = new String[loops]; for(int i=0; i &lt; loops; i++ ) { if(IDSysNames[teacup[i]] != null) { resultList[i].equals(IDSysNames[teacup[i]]); } } setListAdapter(new ArrayAdapter&lt;String&gt;(searchlist.this, android.R.layout.simple_list_item_1, resultList)); return null; } protected void onProgressUpdate(Integer...progress) { dialog.incrementProgressBy(progress[0]); } } @Override public void onListItemClick(ListView l, View v, int position, long id){ //TODO Auto-generated method stub super.onListItemClick(l, v, position, id); //String Pos = resultList[position]; Intent ourIntent = new Intent("com.MC.ChemPal.RESULT2"); startActivity(ourIntent); } } </code></pre> <p>The method used within the code above is below .</p> <pre><code>public String[] getIDSysName() { String[] result = new String[0]; try { String[] columns = new String[] {KEY_SYSNAME}; Cursor c = ChemPal.query(DATABASE_TABLE, columns, null, null, null, null, null); Log.d("SqlDStuff", "Cursor count: "+c.getCount()); int iSysName = c.getColumnIndex(KEY_SYSNAME); int i = 0; for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ i++; } result = new String[i]; i = 0; for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ result[i] = c.getString(iSysName); i++; } } catch(Exception e) { } return result; } </code></pre>
 

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