eclipse - transfer data of 5 activity pages 26 edit text fields and calculate in last android activity -

my problem related android application far able create 5 different activities variables , onclick button pass on next activity...

    public class abc extends activity{ button one2five; edittext edta, edtb, edtc, edtd, edte, edtf; string ta, tb, tc, td, te, tf;     @override     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.abc);         one2five = (button) findviewbyid(r.id.btp1);         edta = (edittext) findviewbyid(r.id.eta);         ta = edta.gettext().tostring();         edtb = (edittext) findviewbyid(r.id.etb);         tb = edtb.gettext().tostring();         edtc = (edittext) findviewbyid(r.id.etc);         tc = edtc.gettext().tostring();         edtd = (edittext) findviewbyid(r.id.etd);         td = edtd.gettext().tostring();         edte = (edittext) findviewbyid(r.id.ete);         te = edte.gettext().tostring();         edtf = (edittext) findviewbyid(r.id.etf);         tf = edtf.gettext().tostring();         one2five.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view v) {                 // todo auto-generated method stub                 intent openg2j = new intent("com.sport.sport.g2j");                 startactivity(openg2j);             }         });      } } 

now base created 4 more pages , total 26 different edittext fields.

my objective is:- edit text in 1 calculate page. perform claculation , post result in on 1 page.

problem:- user text all decimal numbers user prompt if field left blank highlighted field. if user press previous activity should have entered values.

can 1 me solve issue.. monika

with various methodology can handle

1- either define field @ application level keep alive field alive untill , unless application alive pros: once defined use through out application cons: once app close data lost.

2- pass value in intent handle in next activity , combine field of previous , current activity , pass on next activity pros: use fields in , forth activity cons: once app close data lost. 3- save field in shared preferences , use time either app alive or not pros: data saved once committed.

4- can use arraylist , add data in every current next activity context switching scenario want use

and if want have data in previous activity can override method onbackpressed , perform functionality accordingly

sample code using method 2

modified code in question

     public class abc extends activity{ button one2five; edittext edta, edtb, edtc, edtd, edte, edtf; string ta, tb, tc, td, te, tf;     @override     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.abc);         one2five = (button) findviewbyid(r.id.btp1);         edta = (edittext) findviewbyid(r.id.eta);         ta = edta.gettext().tostring();         edtb = (edittext) findviewbyid(r.id.etb);         tb = edtb.gettext().tostring();         edtc = (edittext) findviewbyid(r.id.etc);         tc = edtc.gettext().tostring();         edtd = (edittext) findviewbyid(r.id.etd);         td = edtd.gettext().tostring();         edte = (edittext) findviewbyid(r.id.ete);         te = edte.gettext().tostring();         edtf = (edittext) findviewbyid(r.id.etf);         tf = edtf.gettext().tostring();         one2five.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view v) {                 // todo auto-generated method stub                 intent openg2j = new intent("com.sport.sport.g2j");                 openg2j .putextra("field1data", ta);                 openg2j .putextra("field2data", tb);                 openg2j .putextra("field3data", tc);                 openg2j .putextra("field4data", td);                 openg2j .putextra("field5data", te);                  startactivity(openg2j);             }         });      } 

this how can send data current class next class }

edited :

in 2ndactivity can data ,

string field5data = getintent().getstringextra("field5data") ;