package bookmanager;import java.sql.*;public class DBManager {      ResultSet rs ;      String strurl="jdbc:odbc:myBook";  public DBManager() {                      }  public  ResultSet getResult(String sql){        try{           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;           Connection  conn=DriverManager.getConnection(strurl) ;           Statement  stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);           ResultSet  rs=stmt.executeQuery(sql);               return rs;            }        catch(Exception e){              System.out.println( "getResult------"+e.toString()  );                           }          return rs;                                           }  public boolean executeSql(String sql){          try{             Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;             Connection  conn=DriverManager.getConnection(strurl) ;             Statement  stmt=conn.createStatement();             stmt.executeUpdate(sql);             conn.commit();                 return true;            }           catch(Exception e){             System.out.println( "executeSql------"+e.toString()  );                 return false;            }         }  }