现在您已经有了语句的示例，您可以这样做

int i;
ResultSet resultat = null;
   resultat = statement.executeQuery("SELECT money FROM data WHERE id=1;");//for example the value of the field money in the row who has id=1
   if(resultat.next()){ // you check if the query returned a value
 i=resultat.getInt("money"); // the name of the column
}