android - Can't Find nullpointer please assist -

-

this class gain null pointer points line 65.

 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<string, integer, string[]> {   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 =0; i<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; < loops; i++ )         {             if(idsysnames[teacup[i]] != null)             {              resultlist[i].equals(idsysnames[teacup[i]]);    //line 65               }         }          setlistadapter(new arrayadapter<string>(searchlist.this, android.r.layout.simple_list_item_1, resultlist));         return null;     }      protected void onprogressupdate(integer...progress)     {         dialog.incrementprogressby(progress[0]);     } }

this getidsysname class used class above.

 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 = 0;         (c.movetofirst(); !c.isafterlast(); c.movetonext()){             i++;         }          result = new string[i];         = 0;         (c.movetofirst(); !c.isafterlast(); c.movetonext()){             result[i] = c.getstring(isysname);             i++;          }     }     catch(exception e)     {         }      return result; }

if else needed please ask in comments because frustrating me @ moment. thank you

you've allocated array of strings:

string[] resultlist = new string[loops]; (int i=0; < loops; i++ ) {     if (idsysnames[teacup[i]] != null) {         resultlist[i].equals(idsysnames[teacup[i]]);    //line 65

there aren't strings in upon call equals.


Comments

Post a Comment

Popular posts from this blog

Perl - how to grep a block of text from a file -

-
it can in xml or text format. how in general grep block of text in perl? <track type="ws"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>0</locationindex> <propertyindex>0</propertyindex> </range> </track> <track type="ps" id="1"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>1</locationindex> <propertyindex>1</propertyindex> </range> </track> i want grep type="ps" , till </range> . one solution open file, read line line , match block. open(fh, "file.txt"); foreach $line (<fh>) { if ($line =~ m/type="cc"(.*?)<\/range>/) { print $1; } } but there more optimal solution without reading file line l
Read more

delphi - How to remove all the grips on a coolbar if I have several coolbands? -

-
Image
if set mycoolbar.fixedorder true,only grip on first band hidden. well,if use delphi 7 create vcl forms application,then put coolbar on , create 3 coolbans hold other controls,only grip , top coolbands can hidden setting mycoolbar.fixedorder:=true. i've uploaded picture make things clear. you got fixedorder property wrong. fixed property not allow bands rearranged if set true . setting property of coolbar true keep user changing bands order @ runtime, user can still move , resize bands. can give advice can do, actual solution problem, well, have wait answer. my advice use 3 coolbars in row , setting "fixedorder" property true , bandborderstyle bsnone . way grip hidden on of them. about property, it's not bug of ide, actual preference of property.
Read more

javascript - Animating array of divs; only the final element is modified -

-
this baffling me @ moment. i'm experienced programmer looking throw bit of surprise fiancee on countdown page our wedding. desired effect simulated confetti falling behind main page. setup follows: i have array of divs in javascript. each div absolutely positioned on page. have interval set updates every 50 or milliseconds. on each tick, run loop on array of divs, , calculations , update positions. problem problem having, however, though can see divs created, stored array, , modified (in case, each has slight randomized rotation) during initialization phase, once tick update position starts, div stored in whatever last slot of array gets position updated. tried hard-coding each div index testing purposes, strictly last element update position. upon printing current "left" , "top" style values each div before , after calculations shows value has been changed, no visible change noticeable. here's basic code: javascript var container;
Read more