How can I use a public variable inside a CachedResultSet

Question

The public variable that I declared cannot be called inside the CachedResultSet class....
Heres a part of the code:
     public String type;
     public String getType()
         return type;
     public void setType(String s)
         type = s;
     public CachedRowSet first_report(){
          try {
          String t=type;<<it cannot get the String type declared outside.....     
          Statement stmt = con.createStatement();
          String query = "select stock_code, shares_prices, new_shares, trans_date, prev_close from allTrans where name_broker='"+type+"' order by stock_code";
          ResultSet rs = stmt.executeQuery(query);
            CachedRowSetImpl crset = new CachedRowSetImpl();
            crset.populate(rs);
          rs.close();
          stmt.close();
          con.close();
          return crset;
           catch (Exception e)
          {   System.out.println(e.getMessage());
              return null;
     }

Answer 1

I am not getting any error but the value of String type is null when entering the CachedRowSet...I don't know why it is null and yet the String type can be used by other classes...Like the getType...
Heres the code:
import java.sql.*;
import sun.jdbc.rowset.*;
import com.sun.rowset.*;
import javax.sql.rowset.CachedRowSet;
public class views
      String url, uname, pwd;
      Connection con;
     public String type;
      public String hstock;
      public String hbroker;
     public String getType()
     {  System.out.println("get:"+type);
         return type;
          public void setType(String s)
         type = s;
     public views()
           try
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           url = "jdbc:odbc:***";
           uname = "root";
           pwd = "yes";
           con = DriverManager.getConnection(url, uname, pwd);
           } catch (Exception e)
                System.out.println(e.getMessage());
public CachedRowSet first_report(){
          try {
          String t=type;
            System.out.println(t);
            System.out.println(type);     
          Statement stmt = con.createStatement();
          String query = "select stock_code, shares_prices, new_shares, trans_date, prev_close from allTrans where name_broker='"+type+"' order by stock_code";
          ResultSet rs = stmt.executeQuery(query);
            CachedRowSetImpl crset = new CachedRowSetImpl();
            crset.populate(rs);
          rs.close();
          stmt.close();
          con.close();
          return crset;
           catch (Exception e)
          {   System.out.println(e.getMessage());
              return null;
     }