C++ frequently questioned answers

[Bruno Medeiros]

Bruce Adams wrote:
> Bruno Medeiros Wrote:
> 
>> Bruce Adams wrote:
>>> [OT]
>>> Someone at work pointed out this java chestnut recently. If you've used java much you will know it but it may come as a shock to a mainly C++ coder.
>>>
>>> class foo {
>>>     bar x;
>>>     void foo () {
>>>         x = new bar();
>>>     }
>>> }
>>>
>>> foo is NOT a constructor its actually a method named foo. The java compiler or interpreter generates a default constructor that sets all members to null so any use of x in any method of foo will result in a null pointer exception. This apparently compiles with no warnings.
>>> [/OT]
>> What's so surprising about that, even for a Java newcomer?
>>
>> -- 
>> Bruno Medeiros - MSc in CS/E student
>> http://www.prowiki.org/wiki4d/wiki.cgi?BrunoMedeiros#D
> 
> Its the fact that a simple typo can cause such mayhem. Remove the void from foo() and it becomes a constructor and everthing works just fine.
> 
> 

No one in the Java world writes classes with lowercase first letter 
anyways. :P

-- 
Bruno Medeiros - MSc in CS/E student
http://www.prowiki.org/wiki4d/wiki.cgi?BrunoMedeiros#D