This is C#, but I’m sure this crosses over into a few other languages.

I’m just confused if and how a conditional-and (&&) logical operator works differently than just the and (&) operator.

Conditional means that it only checks the first value if necessary, but both should always be necessary in any and statement, conditional or not, since and returns true only id both statements are true.

It’s like mixing an ‘or’ with an ‘and’ making the ‘or’ useless imo.

Closet of shame

Johnny Mac Posted:

O hay another question i don’t know the answer to

Why should we test for both upper and lowercase letters or use ToUpper( ) to convert letters to uppercase?

From what I’ve found, it’s a matter of an easier comparison, regardless of what a user types. If you are asking for…say…pet’s name, and the person doesn’t remember if the original contained an initial cap, then you’d convert the initial response and the new response to all caps and compare the two.

It appears that in string comparisons in C#, as in many languages, “Text” and “teXt” are not equal.

man-man Posted:

Now you’ve got me interested… what was the answer?

It’s just if the first statement in the && is false, it doesn’t bother checking the second at all. & would check both anyway.

In my mind I only ran through true-true and true-false scenarios.