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“new” keyword in Scala
...d class Foo
scala> new Foo("baz")
res0: Foo = Foo@2ad6a0
// will be a error
scala> Foo("baz")
<console>:8: error: not found: value Foo
Foo("baz")
Bonus, there is a anonymous classes in scala, which can be constructed like this:
scala> new { val bar = "baz" }
res2: java.l...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
...n you will not get an exception. It really wouldn't make sense to throw an error just because a value doesn't exist in a dictionary. But if the dictionary didn't exist then that would be a reason to throw an error. (The term dictionary was just used to refer to an arbitrary collection.)
...
Browse orphaned commits in Git
...orrupted so this didn't help; git fsck can help you find and sometimes fix errors in the repository itself.
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Git rebase merge conflict cannot continue
...commit after a git add. So, the following sequence will produce the rebase error you mention:
git add <file with conflict>
git commit -m "<some message>"
git rebase --continue
While, the sequence below runs without any errors, and continues the rebase:
git add <file with conflict&g...
Concept of void pointer in C programming
...rintf("print float f = %f \n",f);
return 0;
}
But I was getting error, so I came to know my understanding with void pointer is not correct :(. So now I will move towards to collect points why is that so.
The things that i need to understand more on void pointers is that.
We need to type...
For loop example in MySQL
...clare str VARCHAR(255) default ''; in the MySQL (5.6) console gives me the error message Error 1064 (42000): ... for the right syntax to use near '' at line 3, which is as clear as mud (although I assume it doesn't like the DEFAULT clause).
– Agi Hammerthief
Ma...
Are there any side effects of returning from inside a using() statement?
...he same technique in ASP.NET MVC Action method, you will get the following error: "The ObjectContext instance has been disposed and can no longer be used for operations that require a connection"
public ActionResult GetMostRecentTransaction(int singleId)
{
using (var db = new DataClasses1DataC...
Why can't I access DateTime->date in PHP's DateTime class?
...erstand this behaviour. Just comment out the var_Dump and you will get the error again.
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What are the Ruby Gotchas a newbie should be warned about? [closed]
...e, Greeting << " world!" if Greeting == "Hello" does not generate an error or warning. This is similar to final variables in Java, but Ruby does also have the functionality to "freeze" an object, unlike Java.
Some features which differ notably from other languages:
The usual operators for ...
Calling virtual functions inside constructors
...g a polymorphic (virtual in C++ terminology) methods is a common source of errors. In C++, at least you have the guarantee that it will never call a method on a yet unconstructed object...
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