Answer:
It's a compact way of doing an if-else statement.
General Format is
<<em>condition</em>> ? <if condition is true> : <else>;
Example:
I could rewrite:
if(a==1) temp = 1;
else temp = 999;
as
temp = (a==1) ? 1 : 999;
The answer to the given picture is - Microsoft word's spell checker only recognizes very common words. Microsoft word has it's own dictionary which will be compared to the texts on your document. If they see an unfamiliar word they will underline it with red. Anyways you can add your own words and names to the custom dictionary.
