java - How to Change Global Variable in Android -

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i want make mapping application , have problem changing global variable in code. how change global latlng in global variable in if else in method bundle.. please give me solution..thank you.. 

public class arahkan extends fragmentactivity {     private static final int direction = menu.first + 1;     private static final int exit = menu.first + 2;     googlemap map;      string tampil2 = getintent().getextras().getstring("key");      public latlng jakarta = new latlng(-6.175467640504223,106.82718157768248); // how change this.. ??       class data {         public data(float lng, float lat, string title, string snippet, string icon) {             super();             this.lat = (float)lat;             this.lng = (float)lng;             this.title = title;             this.snippet = snippet;             this.icon = icon;         }         float lat;         float lng;         string title;         string snippet;         string icon;     }       @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         this.requestwindowfeature(window.feature_no_title);         setcontentview(r.layout.peta);         if(tampil2.equalsignorecase("coba")){                  //here... how change value   variabel latlng jakarta   ??          }         if(tampil2.equalsignorecase("bisa")){          }

please me ...

latlng creates immutable, latitude & longitude member variables "final", cannot update it. see here

for scenario, recommend location class. here tutorial on using location api


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