ClassCastException: fragment cannot be cast to android.app.activtity -

i have class extends fragment , there button on once click initialises new class extends activity.. wanted pass data(e.g. string) on button click activity caller fragment.

firstactivity extends fragment

on button click

intent startcontact = new intent(getactivity(), contact.class);                 getactivity().startactivityforresult(startcontact,1); 

contact extends activity

on button click

bundle bundle = new bundle();                  bundle.putstring("listofcontacts", tapo1);                  intent intent = new intent(contact.this, first_activity.class);                  intent.putextras(bundle);                  setresult(result_ok);                  startactivity(intent);                  finish(); 

firstactivity onactivityresult

@override     public void onactivityresult(int requestcode, int resultcode, intent data) {         // todo auto-generated method stub         super.onactivityresult(requestcode, resultcode, data);          multiautocompletetextview txtphoneno = (multiautocompletetextview) getactivity().findviewbyid(r.id.txtphoneno);          string strtxt = null;          if (requestcode == 1)           {             if(resultcode == getactivity().result_ok)             {              strtxt=data.getstringextra("listofcontacts");              txtphoneno.settext(strtxt);             }          }     } 

when tried click button contact class got error:

classcastexception: firstactivity cannot cast android.app.activity 

pls help!

logcat:

08-15 23:26:39.153: e/androidruntime(21267): fatal exception: main 08-15 23:26:39.153: e/androidruntime(21267): java.lang.runtimeexception: unable instantiate activity componentinfo{com.example.john/com.example.john.first_activity}: java.lang.classcastexception: com.example.john.first_activity cannot cast android.app.activity 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread.performlaunchactivity(activitythread.java:2001) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread.handlelaunchactivity(activitythread.java:2104) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread.access$600(activitythread.java:134) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread$h.handlemessage(activitythread.java:1247) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.os.handler.dispatchmessage(handler.java:99) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.os.looper.loop(looper.java:154) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread.main(activitythread.java:4624) 08-15 23:26:39.153: e/androidruntime(21267):    @ java.lang.reflect.method.invokenative(native method) 08-15 23:26:39.153: e/androidruntime(21267):    @ java.lang.reflect.method.invoke(method.java:511) 08-15 23:26:39.153: e/androidruntime(21267):    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:809) 08-15 23:26:39.153: e/androidruntime(21267):    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:576) 08-15 23:26:39.153: e/androidruntime(21267):    @ dalvik.system.nativestart.main(native method) 08-15 23:26:39.153: e/androidruntime(21267): caused by: java.lang.classcastexception: com.example.john.first_activity cannot cast android.app.activity 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.instrumentation.newactivity(instrumentation.java:1023) 08-15 23:26:39.153: e/androidruntime(21267):    @ android.app.activitythread.performlaunchactivity(activitythread.java:1992) 08-15 23:26:39.153: e/androidruntime(21267):    ... 11 more 

you using onactivityresult in fragment firstactivity.class activity class can use method , receive result code, not fragment. can use flags check change in value , check in onresume() in fragment firstactivity.class