hi
this might help
//connection to db
dbConnection dbConn = new dbConnection();
Statement stmta = dbConn.connect();
//ur query
String query1="select prod_id from product_tbl where prod_type='"+type+"' and prod_width='"+width+"' and prod_micron='"+micron+"' ";
//resultset
rs1=stmta.executeQuery(query1);
//accessing rs
if(rs1.next())
{
id=(String)rs1.getString("prod_id");
......
......
}
now u have the values u can pass it to applet