Jdbc get the data from database example

import java.sql.*;
class  GetData
{
    public static void main(String[] args) throws Exception
    {
        Class.forName("oracle.jdbc.driver.OracleDriver");
        Connection con=DriverManager.getConnection
      ("jdbc:oracle:thin:@localhost:1521:xe","system","chandru");
        System.out.println(" Connected 2 DB.....");
//FARWARD_ONLY resultset is the default resultset 
        Statement stmt=con.createStatement();
        String vsql="select * from emp4";
        ResultSet rs=stmt.executeQuery(vsql);
        while(rs.next())
        {
            System.out.println(rs.getString(1));
            System.out.println(rs.getString(2));
        }


        
    }
}