This one really messes with my head: Whenever I try to typecast a var passed to a function of type \'string\', like this:
I have a line of code similar to the following: final String food = (String) JOptionPane.showInputDialog(this, \"Choose a food\", \"Food\",
I h开发者_运维问答ave a wrapper class and I want to modify the data and convert it back to its original type.
dynamic_casts are slow开发者_开发问答er, but they are safer than static_casts (when used with object hierarchies, of course). My question is, after I\'ve ensured in my debug code that all (dynamic) ca
I know that dynamic_cast have runtime check and therefor consider safer (can return null pointer on failure) but slower then static_cast. but how bad is the overhead between the two?
Is there a way to overload a cast operator to convert between two enums? In 开发者_StackOverflowmy code I have
How can I convert string to boolean? $string = \'false\'; $test_mode_mail = settype($string, \'boolean\');
I use ProtoBuf to serialize class which is create开发者_运维技巧d at runtime using Activator.CreateInstance.
If I try to do this it doesn\'t work: static void Main(string[] args) { int a = 5000; Con开发者_如何转开发sole.WriteLine((string)a);
When I write some API, it sometimes will use Collection<Model> to be the parameter. Of course, you can use ArrayList if you know ArrayList is already enough to handle all the use case.
加载中,请稍侯......