List of objects. Operations with Integer entries
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29-10-2019 - |
Question
The List might contain both Integers and String values. In this case, should I create the List of Objects, right?
List<Object> list = new ArrayList<Object>();
How to perform simple arithmetic operations with the Integer entries of the List?
list.add(1);
list.add("ok");
list.add(2);
Integer a = list.get(0) - list.get(2); // does not work
No correct solution
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