java - Getting null from getters method -


i getting null getters method when trying save in list , calling list in servlet. please me out rid of this. in advance. adding first getters , setters method code dao code , servlet code.

package com.vechile.model;   public class driversearchresult {      private string id;     private string name;     private string address;     private string city;     private string contact;     private string country;     public string getid() {         return id;     }     public void setid(string id) {         id = id;     }     public string getname() {         return name;     }     public void setname(string name) {         name = name;     }     public string getaddress() {         return address;     }     public void setaddress(string address) {         address = address;     }     public string getcity() {         return city;     }     public void setcity(string city) {         city = city;     }     public string getcontact() {         return contact;     }     public void setcontact(string contact) {         contact = contact;     }     public string getcountry() {         return country;     }     public void setcountry(string country) {         country = country;     }   }  package com.vechile.dao;  import java.sql.resultset; import java.sql.sqlexception; import java.util.arraylist; import java.util.list;  import com.vechile.model.driver; import com.vechile.model.driversearchresult; import com.vechile.model.searching; import com.vechile.utils.dbconnection;  public class searchdao {       private string sql;     private resultset rs, rs1;        public boolean searchdriver(searching searching) {         try {              sql = string.format("select * adddriver (%s) = '%s'",                     searching.getinputlist(), searching.gettxtfield());              rs = dbconnection.executequery(sql);              if(rs.next()) {                  driversearchresult setresult = new driversearchresult();                 integer id = new integer(rs.getint(1));                 string stringid = id.tostring();                 setresult.setid(stringid);                 setresult.setname(rs.getstring(1));                 setresult.setaddress(rs.getstring(2));                 setresult.setcity(rs.getstring(3));                 setresult.setcontact(rs.getstring(4));                 setresult.setcountry(rs.getstring(5));                  return true;             }         } catch (exception e) {             e.getstacktrace();         }         return false;     }     public list<driversearchresult> getdriverresult(){               list<driversearchresult> returnlist = new arraylist<driversearchresult>();             driversearchresult getresult = new driversearchresult();             string id = getresult.getid();             string name = getresult.getname();             string address = getresult.getaddress();             string city = getresult.getcity();             string contact = getresult.getcontact();             string country = getresult.getcountry();              returnlist.add(getresult);             return returnlist;      }      public boolean searchbooking(searching searching) {         try {             sql = string.format(                     "select * booking booking_id = '%s'",                     searching.getbookingsearch());              rs1 = dbconnection.executequery(sql);             if (rs1.next()) {                  return true;              }          } catch (exception e) {             e.getstacktrace();         }         return false;     }   }  protected void dopost(httpservletrequest request,             httpservletresponse response) throws servletexception, ioexception {         printwriter out = response.getwriter();         string input = request.getparameter("list");         string txtfield = request.getparameter("txtfield");         string op = request.getparameter("op");         string bsearch = request.getparameter("bookingsearch");            try{             if(op.equals("1")){                 searching search1 = new searching();                 search1.setinputlist(input);                 search1.settxtfield(txtfield);                 searchdao searchdao = new searchdao();                 boolean searchdriver = searchdao.searchdriver(search1);                  if(searchdriver){                     driversearchresult searchresult = new driversearchresult();                           system.out.println(searchresult.getid());                      //response.sendredirect("driversearchresult.jsp");                       //response.sendredirect("searchoutput.jsp?op=" + search1.getpassingvalue());                  }                 else {                     out.println("<html>");                     out.println("<head>");                     out.println("<script>");                     out.println("alert('record not found!')");                     out.println("</script>");                     out.println("<meta http-equiv= refresh content=0;url=searchdriver.jsp>");                 }              } 

that happens because fill driversearchresult object in method searchdriver , forget object. in method create instance of class driversearchresult , try extract values without prior initialization. that's why gives nulls, since never call setters on newly created instance.

i guess want save driversearchresult instance created in searchdriver method , use in other methods instead of creating new one.

upd: hope idea clear code snippet:

public class searchdao {     private list<driversearchresult> resultlist = new arraylist<>();       public boolean searchdriver(searching searching) {         try {             // ...             if(rs.next()) {                 driversearchresult setresult = new driversearchresult();                 // ...                 resultlist.add(setresult); // <<<<<<<<<                 return true;             }         } catch (exception e) {             e.getstacktrace();         }         return false;     }      public list<driversearchresult> getdriverresult(){         return resultlist; // <<<<     } } 

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