How Can a Programming Language be both Statically-Typed and Dynamically-Typed?

Posted by Zanneth on Stack Overflow See other posts from Stack Overflow or by Zanneth
Published on 2010-04-18T02:28:48Z Indexed on 2010/04/18 2:33 UTC
Read the original article Hit count: 302

Filed under:

languages

|

objective-c

|

typing

|

static

|

dynamic

Statically-typed languages and dynamically-typed languages in principle seem like opposite concepts. However, how can a language like Objective-C for example be both of these things at once? It seems to me that Objective-C is more static than dynamic. Can somebody explain how this is possible?

© Stack Overflow or respective owner

Related posts about languages

Programming languages, positional languages and natural languages

as seen on Programmers - Search for 'Programmers'
Some programming languages are modeled on machine code, like assembly languages. Other languages are modeled on a natural language, the English language. Others are not modeled on either machine code or natural language. Languages such as PROLOG, for example, don't follow either model. I came across… >>> More
Dynamic type languages versus static type languages

as seen on Stack Overflow - Search for 'Stack Overflow'
What are the advantages and limitations of dynamic type languages compared to static type languages? See also: whats with the love of dynamic languages (a far more argumentative thread...) >>> More
Are Mark Up languages considered programming languages?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Are all those markup languages programming languages? For example XML or HTML are programming languages? >>> More
Managed Languages vs Compiled Language difference?

as seen on Programmers - Search for 'Programmers'
I get confused when people try to make a distinction between compiled languages and managed languages. From experience, I understand that most consider compiled languages to be C,C++ while managed languages are Java,C# (There are obviously more, but these are just few examples). But what exactly is… >>> More
Advantages of compilers for functional languages over compilers for imperative languages

as seen on Stack Overflow - Search for 'Stack Overflow'
As a follow up to this question What are the advantages of built-in immutability of F# over C#?--am I correct in assuming that the F# compiler can make certain optimizations knowing that it's dealing with largely immutable code? I mean even if a developer writes "Functional C#" the compiler wouldn't… >>> More

Related posts about objective-c

Blocking access to websites with objective-C / root privileges in objective-C

as seen on Stack Overflow - Search for 'Stack Overflow'
I am writing a program in Objective-C (XCode 3.2, on Snow Leopard) that is capable of either selectively blocking certain sites for a duration or only allow certain sites (and thus block all others) for a duration. The reasoning behind this program is rather simple. I tend to get distracted when I… >>> More
Objective-C with some Objective-C++, calling a normal c++ method "referenced from" problem

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I made an Objective-C project for the iPhone. I had only one cpp class, the soundEngine taken from some Apple demo. Now I'm trying to merge OpenFeint which is coded in Objective-C++. As soon as I drop in the code without even referring to it from my code, when I hit Build, my Objective-C code… >>> More
Add an objective @property attribute in objective-c

as seen on Stack Overflow - Search for 'Stack Overflow'
Does anyone know of a way to add additional attribute types to the @property keyword without modifying the compiler? Or can anyone think of another way to genericize getter/setter creation? Basically, I have a lot of cases in a recent project where it's handy for objects to lazily instantiate their… >>> More
ObjectiveC Syntax for Specifying Protocol Name in Method Argument

as seen on Stack Overflow - Search for 'Stack Overflow'
What's the ObjectiveC syntax for specifying a protocol as an argument in a method? Say I have 2 protocols, MyProtocol and MyProtocolCB: @protocol MyProtocolCB <NSObject> - (void) func; @end @protocol MyProtocol <NSObject> - (void) register:(MyProtocolCB*) cb; @end I'm receiving this… >>> More
ObjectiveC builtin template system ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am developing an iPhone application and I use HTML to display formatted text. I often display the same webpage, but with a different content. I would like to use a template HTML file, and then fill it with my diffent values. I wonder if ObjectiveC has a template system similar to ERB in Ruby. That… >>> More