java - Trying to refresh JTable from third party using abstractTableModel -

when using button event success display update table in gui window, the problem when want refresh data update() method(=from third party). read realize need use abstracttablemodel ,so create mytablemodel class , still without success, due worng implement method. try alot appreciate suggest or solution please :) ![enter image description here][1] scrn shot before , after press button, want same result calling update

public void update() {     try {         int col = 0, row = 0;         vector<object> data = new vector<object>();         vector<object> colname = new vector<object>();          system.out.println("refresh list ...");         system.out.println("update have done!");         query = "select * data";         pst = connection.preparestatement(query);         rs = pst.executequery();         resultsetmetadata md = rs.getmetadata();         col = md.getcolumncount();          (int = 1; <= col; i++) {             colname.addelement(md.getcolumnname(i));             system.out.println(colname.get(i - 1));         }          int tmp = 0;         while (rs.next()) {             (int = 1; <= col; i++) {                 data.addelement(rs.getstring(i));                 system.out.println(data.get(tmp));                 tmp++;             }             row = tmp;         }         mytablemodel mtm=new mytablemodel(data, colname);            pst.close();         rs.close();     } catch (exception e) {         e.printstacktrace();     } } 

my working button event more understanding`

 btnloadtable.addactionlistener(new actionlistener() {         public void actionperformed(actionevent arg0) {             system.out.println("hey click me man!!!!!!!!!!!");             try {                 system.out.println("refresh list ...");                 system.out.println("update have done!");                 string query = "select id,candidatename,company,link data";                  pst = connection.preparestatement(query);                 resultset rs = pst.executequery();                  table.setmodel(dbutils.resultsettotablemodel(rs));                 pst.close();                 rs.close();             } catch (exception e) {                 e.printstacktrace();             }         }     });` 

and last try implement class mytablemodel class

class mytablemodel extends abstracttablemodel {     vector<object> colaname= new vector<object>();     vector<object> celldata = new vector<object>();      //constructor table model     public mytablemodel(vector<object> data,vector<object> colname ) {         super();         this.colaname=colname;         this.celldata=data;     }     //------------7     public void insertdata(vector vector) {                 int length=getrowcount();                 (int = 0; < length; i++) {                     celldata.addelement(vector.get(i));                 }                 firetabledatachanged();             }     //------------1             @override     public string getcolumnname(int col) {         return colaname.get(col).tostring();     }      //------------2     @override     public int getcolumncount() {         return colaname.size();     }     //------------3     @override     public int getrowcount() {         return celldata.size();     }        public void setvalueat(vector value, int row, int col) {           celldata= value;             firetablecellupdated(row, col);         }     //------------4     @override     public object[][] getvalueat(int row, int col) {         int row1=getrowcount();         int col1=getcolumncount();         object[][] tabledata = new object[row1][col];         (int = 0 ; < col1 ; i++)         {             (int j = 0 ; j < row1 ; j++)             {                 tabledata[i][j] = celldata;                 system.out.println("////////////////////////////");                 system.out.println(tabledata[i][j]);             }         }         return (object[][]) tabledata[row1][col1];     }     //------------5     @override     public class getcolumnclass(int c) {         c=getcolumncount();         return getvalueat(0, c).getclass();     } }`