大约有 32,294 项符合查询结果（耗时：0.0276秒） [XML]
Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?
...
Because interfaces specify only what the class is doing, not how it is doing it.
The problem with multiple inheritance is that two classes may define different ways of doing the same thing, and the subclass can't choose which one to pick.
...
Why aren't variable-length arrays part of the C++ standard?
...sometimes you definitely may know an upper bound. But in those cases, from what i see a static array can equally be sufficient, since it would not waste much space anyway (if it would, then you would actually have to ask whether the stack area is large enough again).
– Johannes...
What is the idiomatic Go equivalent of C's ternary operator?
...
So just because what the language designers have seen, they have omitted a one-liner for a whole if-else block? And who says if-else isn't abused in like manner? I'm not attacking you, I just feel that the excuse by the designers isn't valid...
Static extension methods [duplicate]
...let's say:
public static string SomeStringExtension(this string s)
{
//whatever..
}
When you then call it:
myString.SomeStringExtension();
The compiler just turns it into:
ExtensionClass.SomeStringExtension(myString);
So as you can see, there's no way to do that for static methods.
And ...
What is the meaning of the 'g' flag in regular expressions?
What is the meaning of the g flag in regular expressions?
9 Answers
9
...
What is Delegate? [closed]
I am confused that what is the actual role of a delegate?
13 Answers
13
...
What's the difference between a continuation and a callback?
...
So essentially callcc logically converts the entire function body back to what we started from (and gives those anonymous functions the name cc). The pythagoras function using this implementation of callcc becomes then:
function pythagoras(x, y, cont) {
callcc(function(cc) {
square(x, ...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
I have read a bit on this, but I can't seem to find anything solid about how different browsers treat things.
5 Answers
...
How do I detect when someone shakes an iPhone?
...ar. I'm not sure why; maybe the view needs to be visible before it can do whatever it does to start receiving the shake events?
– Kristopher Johnson
Aug 9 '09 at 0:54
1
...
advantage of tap method in ruby
...nd
then that would be immediately clear. A reader would not have to read what is inside the block to know that an instance user is created.
share
|
improve this answer
|
fo...