java - Two JsonArray`s Comparing missing keys -

i have 2 jsonarrays datas api

api 1

[    {       "id":1,       "value":270    },    {       "id":2,       "value":1432493    },    {       "id":3,       "value":63    },    {       "id":5,       "value":412    },    {       "id":6,       "value":371    },    {       "id":7,       "value":824    },    {       "id":9,       "value":266    } ] 

api 2

[    {       "id":1,       "name":"name",       "description":"description"    },    {       "id":2,       "name":"name",       "description":"description"    },    {       "id":3,       "name":"name",       "description":"description"    },    {       "id":4,       "name":"name",       "description":"description"    },    {       "id":5,       "name":"name",       "description":"description"    },    {       "id":6,       "name":"name",       "description":"description"    },    {       "id":7,       "name":"name",       "description":"description"    },    {       "id":8,       "name":"name",       "description":"description"    },    {       "id":9,       "name":"name",       "description":"description"    } ] 

i cambine new array

            jsonarray jarray = new jsonarray(api1);             jsonarray jarray1 = new jsonarray(api2);              for(int i=0;i<jarray1.length();i++) {                 jsonobject json_data = jarray.getjsonobject(i);                 jsonobject json_data1 = jarray1.getjsonobject(i);                 datawallet walletdata = new datawallet();                 if (json_data.getstring("id").equals(json_data1.getstring("id"))) {                     walletdata.wallet_id = json_data.getstring("id");                     walletdata.textwalletnumber = json_data.getstring("value");                     walletdata.wallet_name = json_data1.getstring("name");                     walletdata.wallet_desc = json_data1.getstring("description");                  } else {                     walletdata.wallet_id = json_data1.getstring("id");                     walletdata.textwalletnumber = "0";                     walletdata.wallet_name = json_data1.getstring("name");                     walletdata.wallet_desc = json_data1.getstring("description");                  }                 data.add(walletdata);              } 

now have problem 1,2,3 work fine 4 problem api1 give no entrys value "0" ad on codes work not.

you need second loop inside the first 1 (jarray1) iterate on jarray. altogether need 2 loops combine 2 arrays. if have huge arrays idea use better algorithms e.g. binary search. makes faster , more optimal o.

here how should like. not have editor right test or there can synax errors. concept right. suggest learn concept of bobble search , binary search. if learn can solve problem in sort.

    jsonarray jarray = new jsonarray(api1);     jsonarray jarray1 = new jsonarray(api2);      for(int i=0;i<jarray1.length();i++) {       for(int j=0; j<jarray.lenght();j++){             jsonobject json_data = jarray1.getjsonobject(i);             jsonobject json_data1 = jarray.getjsonobject(j);             datawallet walletdata = new datawallet();             if (json_data.getstring("id").equals(json_data1.getstring("id"))) {                 walletdata.wallet_id = json_data.getstring("id");                 walletdata.textwalletnumber = json_data.getstring("value");                 walletdata.wallet_name = json_data1.getstring("name");                 walletdata.wallet_desc = json_data1.getstring("description");                 data.add(walletdata);             }           } }