PreparedStatement psd = con.prepareStatement("Select job,username,password from login where job=? and username=? and password=?");
            psd.setString(1, selection);
            psd.setString(2, username);
            psd.setString(3, password);

public static Connection getConnection() throws Exception{

    try{
        String driver="com.mysql.jdbc.Driver";
        String url="jdbc:mysql://ip_address/database_NAME";
        String username="username";
        String password="password";
        Class.forName(driver);

        Connection conn=DriverManager.getConnection(url,username,password);
        JOptionPane.showMessageDialog(null,"Connection Established");
        return conn;
    }catch(Exception e)
    {
        JOptionPane.showMessageDialog(null,"Not Connected to InternetnPlease Try Again","Error", JOptionPane.ERROR_MESSAGE);
    }

return null;
}//getConnection