java - Searching in an Array that is parsed from a XML in Android -

i have xml file parse arraylist

in arraylist have countries , alarmnumbers countries in it.

i want search country , it's police, ambulance or firedep. number.

here code out.

parsing xml arraylist:

protected arraylist<alarmdiensten> getalarmdiensten() {      arraylist<alarmdiensten> lijst = new arraylist<alarmdiensten>();      try {       documentbuilder builder =documentbuilderfactory.newinstance().newdocumentbuilder();       document doc = builder.parse(getassets().open("alarmdiensten.xml"));       nodelist nl = doc.getelementsbytagname("land");       (int i=0;i<nl.getlength();i++) {        node node = nl.item(i);        alarmdiensten land = new alarmdiensten();                  land.land = xml.innerhtml(xml.getchildbytagname(node, "naam"));        land.landcode = xml.innerhtml(xml.getchildbytagname(node, "code"));        land.politie = xml.innerhtml(xml.getchildbytagname(node, "politie"));        land.ambulance = xml.innerhtml(xml.getchildbytagname(node, "ambulance"));        land.brandweer = xml.innerhtml(xml.getchildbytagname(node, "brandweer"));        land.telamba = xml.innerhtml(xml.getchildbytagname(node, "telamba"));        land.adresamba = xml.innerhtml(xml.getchildbytagname(node, "adresamba"));         lijst.add(land);       }      } catch (exception e) {;      }      return lijst;     } 

the method use alarmnumbers:

    public void alarmmenu(){      string landcode;         arraylist<alarmdiensten> diensten = getalarmdiensten();      if(fakelocation = true) {       landcode = sfakelocation;      }      else {       try {     landcode = getaddressforlocation(this, locationnow).getcountrycode();    } catch (ioexception e) {     e.printstacktrace();    }      } 

so have landcode, , want search in arraylist diensten numbers belong landcode.

how can this?

well @ moment you've got arraylist of alarmdiensten objects. suggest might want change map storing map of land codes vs alarmdiensten objects.

that way alarmdiensten out of map using landcode , call getpolitie() etc methods on alarmdiensten object.

i make sure encapsulate alarmdiensten object btw, accessing it's private members directly bit of no-no :)

so like:

protected map<string, alarmdiensten> getalarmdiensten() {   map<string, alarmdiensten> alarmnumbersforcountries                                               = new hashmap<string, alarmdiensten>();    try   {     documentbuilder builder = documentbuilderfactory.newinstance().newdocumentbuilder();     document doc = builder.parse(getassets().open("alarmdiensten.xml"));     nodelist nl = doc.getelementsbytagname("land");     (int = 0; < nl.getlength(); i++)     {       node node = nl.item(i);       alarmdiensten land = new alarmdiensten();        land.setland(xml.innerhtml(xml.getchildbytagname(node, "naam")));       land.setlandcode(xml.innerhtml(xml.getchildbytagname(node, "code")));       land.setpolitie(xml.innerhtml(xml.getchildbytagname(node, "politie")));       land.setambulance(xml.innerhtml(xml.getchildbytagname(node, "ambulance")));       land.setbrandweer(xml.innerhtml(xml.getchildbytagname(node, "brandweer")));       land.settelamba(xml.innerhtml(xml.getchildbytagname(node, "telamba")));       land.setadresamba(xml.innerhtml(xml.getchildbytagname(node, "adresamba")));        alarmnumbersforcountries.put(land.getlandcode(), land);     }   }    catch (exception e)   {     // handle exception   }    return alarmnumbersforcountries; } 

to entry out of map

alarmdiensten land = alarmnumbersforcountries.get(landcode); 

another ymmv point might want split out part of method builds alarmdiensten objects xml parsing. "each method should 1 thing , 1 thign well."