Question

I have a ArrayList made up of different elements imported from a db, made up of strings, numbers, doubles and ints. Is there a way to use a reflection type technique to find out what each type of data each element holds?

FYI: The reason that there is so many types of data is that this is a piece of java code being written to be implemented with different DB’s.

Answer 1

In C#:
Fixed with recommendation from Mike

ArrayList list = ...; // List<object> list = ...; foreach (object o in list) {     if (o is int) {         HandleInt((int)o);     }     else if (o is string) {         HandleString((string)o);     }     ... } 

In Java:

ArrayList<Object> list = ...; for (Object o : list) {     if (o instanceof Integer)) {         handleInt((Integer o).intValue());     }     else if (o instanceof String)) {         handleString((String)o);     }     ... }