import  java.sql.*;
 public   class  JDBCTest1
{
     public   static   void  main(String[] args)
    {
        String driver = "com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource";
        String url = "jdbc:mysql://127.0.0.1:3306/Auth";
        String fName;
         int  fId;
        Object fSalary;
        Connection con= null ;
        Statement st;
        ResultSet rs;
         try 
        {
             Class .forName(driver);
        }
         catch (ClassNotFoundException cnfe)
        {   
            System.err.println("Can't find JDBC driver");
            cnfe.printStackTrace();
            System.exit( 1 );
        }
         try 
        {
            con=DriverManager.getConnection(url, "user", "");
        }
         catch (SQLException se)
        {
            System.err.println("DB connection error");
            se.printStackTrace();
            System.exit( 1 );
        }
         try 
        {
            st = con.createStatement();
            rs = st.executeQuery("select id, adress, login from worker");
             while  (rs.next())
            {
                fId = rs.getInt("id");
                fName = rs.getString( 2 );
                fSalary = rs.getObject( 3 );
                System.out.println("id=" + fId + ", name=" + fName+",salary="+fSalary.toString());
            }
        }
         catch (SQLException se)
        {
            System.err.println("JDBC execution error");
            se.printStackTrace();
            System.exit( 1 );
        }
         try 
        {
            con.close();
        }
         catch (SQLException se)
        {
            System.err.println("Connection close error");
            se.printStackTrace();
            System.exit( 1 );
        }
    }
}

DB connection error
java.sql.SQLException: Unknown database 'Auth'
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java: 2975 )
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java: 798 )
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java: 1256 )
        at com.mysql.jdbc.Connection.createNewIO(Connection.java: 2568 )
        at com.mysql.jdbc.Connection.<init>(Connection.java: 1485 )
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java: 266 )
        at java.sql.DriverManager.getConnection(DriverManager.java: 525 )
        at java.sql.DriverManager.getConnection(DriverManager.java: 171 )
        at JDBCTest1.main(JDBCTest1.java: 26 )
Java Result:  1 
BUILD SUCCESSFUL (total time:  4  seconds)