Comments on Duffblog 2.0: Java Blooper #1: Ternary Insanity

@mark, that's not the case. There's no way to muta...

2008-09-08T09:51:00.000-07:00

@mark, that's not the case. There's no way to mutate the _visible field if its value is directly returned from isVisible().

someone suggested simply "return _visible;" this m...

2008-09-07T18:55:00.000-07:00

someone suggested simply "return _visible;" this may give an outsider intimate access to a private variable.

class Thing {
private boolean _visible;

boolean isVisible() {
boolean copy = _visible;
return copy;
}
}

"Remember that the object being referenced in the ...

2008-04-30T05:32:00.000-07:00

"Remember that the object being referenced in the foreach loop can NEVER be null"

>> This is wrong. The non-nullness has nothing to do with the foreach loop as this code proves:

for (String s : new String[] { null }) {
System.out.println(s == null);
}

prints out: true

This is our new star java developer:Remember that ...

2008-03-18T02:40:00.000-07:00

This is our new star java developer:

Remember that the object being referenced in the foreach loop can NEVER be null:

for (Element e : l.getElements())
{
if (e == null) continue;

...
}

WTF?

I consider this a blooper too:if (a little bit com...

2007-11-13T06:25:00.000-08:00

I consider this a blooper too:

if (a little bit complex boolean expression) {
return true;
}
else {
return false;
}
better alternative:
return (a little bit complex boolean expression);

return visible;

2007-10-04T11:00:00.000-07:00

return visible;

ugg: which is the long-hand version of the origina...

2007-08-13T18:50:00.000-07:00

ugg: which is the long-hand version of the original post.

I have seen:if (_visible == true) { return true...

2007-08-13T18:06:00.000-07:00

I have seen:

if (_visible == true) {
return true;
} else {
return false;
}

or how about this...if (_visible) { return new Bo...

2007-08-13T16:47:00.000-07:00

or how about this...

if (_visible) {
return new Boolean(true);
} else {
return new Boolean(false);
}