Outputting a bool to the Console

Question

This is an easy question I think :-)

Have a look at this program:

string v1 = "Hallo";
string v2 = "Hallo";

Console.WriteLine("Output" + v1 == v2);

This just outputs the following:

False

But if I write:

Console.WriteLine("Output" + true);

It outputs:

OutputTrue

I would think that "v1 == v2" evualuates to "true" and is therefore the same. But I am obviously wrong.

Can anyone explain this behaviour to me? I expected to get the same result (OutputTrue) in both cases. What is happening in the first case?

user_9916400 · Answer

It firsts adds v1 to "Output" so you'll get the following statement:

Console.WriteLine("OutputHallo" == v2);

To fix this you can add parenthisis:

Console.WriteLine("Output" + (v1 == v2));

user_2826532 · Answer

Reference types are checked whether same references point to the same object in memory, not the value itself.