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Java Forum / General / December 2005is Java dynamically or statically typed language or both?
Is it different from c++ in this regard? Thx > Is it different from c++ in this regard? > > Thx Strongly typed > > Is it different from c++ in this regard? > > > > Thx > > > Strongly typed elaborate on how it relates to dynamically or statically typed concepts. rhx >> > Is it different from c++ in this regard? >> > [quoted text clipped - 4 lines] > elaborate on how it relates to dynamically or statically typed > concepts. Take some time and read http://en.wikipedia.org/wiki/Datatype This should answer most of the questions you are likely to ask in short order ;) See you Stefan  SignatureYou can't run away forever, But there's nothing wrong with getting a good head start. --- Jim Steinman, "Rock and Roll Dreams Come Through" Java is strongly typed with some hole near collections (patched with generics in java 5.0) but It is possible to write "dynamically typed"-like code in Java - declare all variables as Object and use reflection to call methods an do other things around ^_^ (similar to Smalltalk but ugly in syntax) Hi "egao1980": > Java is strongly typed with some hole near collections (patched with > generics in java 5.0) but It is possible to write "dynamically > typed"-like code in Java - declare all variables as Object and use > reflection to call methods an do other things around ^_^ (similar to > Smalltalk but ugly in syntax) I hear what you're saying, but I still think there is a big difference between declaring variables as type Object and variables in dynamically typed (scripting) languages. Type Object is still just that, a type. As you probably already know, a cast is usually required to change over to a more specific type (like iterating through a collection before Generics). Reflection, of course, also deals with specific class types. On the other hand, variables declared in a scripting language can be dynamically assigned to another data type (like the example I gave earlier in this thread) without the need for casting. But, one has to wonder how all that magic happens in the background. So, you bring up an interesting point. Here's something for all of us to ponder for the new year... Happy New Year! Mike. --- ACGNJ Java Users Group (http://www.javasig.org/) Hi puzzlecracker: > Is it different from c++ in this regard? Java is statically typed because dynamically typed languages (such as JavaScript and Visual Basic) allow you to write code like this: var fred = "Fred"; //... fred = 3.5; This would obviously be illegal in Java and C++. More details can be found at http://en.wikipedia.org/wiki/Data_type Hope this helps... Mike. > Hi puzzlecracker: > [quoted text clipped - 14 lines] > > Mike. Thanks... that does it Would an automatic registering of delegates make a language dynamically typed? Hi puzzlecracker: > Thanks... that does it > > Would an automatic registering of delegates make a language > dynamically typed? Can I assume that you are referring to C#? I haven't made the plunge into the whole .NET thing, but I am aware of the 'delegate' keyword. I did some surfing, and found the following from Microsoft's MSDN page: "A delegate declaration defines a reference type that can be used to encapsulate a method with a specific signature. A delegate instance encapsulates a static or an instance method. Delegates are roughly similar to function pointers in C++; however, delegates are type-safe and secure." More details can be found at: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vcre fTheDelegateType.asp Hope this helps... Happy New Year! Mike. --- ACGNJ Java Users Group (http://www.javasig.org/) > Hi puzzlecracker: > [quoted text clipped - 26 lines] > > --- ACGNJ Java Users Group (http://www.javasig.org/) C# has but it also an implementation detail usually in adapter pattern: you create a delegate which can be used to manipulate adaptee. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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