public static void main(String[] args) throws SQLException {
    try (Connection c = DriverManager.getConnection("jdbc:postgresql://localhost/webtester", "webtester", "password")) {
        Statement st = c.createStatement();
        ResultSet rs = st.executeQuery("select * from account");
        while (rs.next()) {
            System.out.println(rs.getString(2));
        }
    }
}