Intermediate Java Tutorial - 17 - Generic Methods

[ghandi851]

i get errors if i don't put static as it is!

static int [] iray = {1,4,5,6}; static char [] hray = {'a','v','c'};

why is that?

tanx

i like your video !!

[Viddharto]

Lol, watched this and then I was like WTF, and then I noticed I was watching the Intermediate tutorial.

[bishnuinet]

May I know about it?

I'm infant with Java programming...I'm curious with these example. Both of example give us same reasult..What is the different?

String[] thePeople = {"Marc", "Dav", Kevin};

//and

String thePeople[] = {"Marc, "Dave", "Kevin"};

//I demonstrated in that way;

for(String x:thePeople) System.out.println(x);

[JavaMonsterification]

@bishnuinet I believe u can use the prior i.e String [] a,b,c to declare several arrays of type string as opposed to String[] a,b,c which makes 1 string array(a) and two variables (b & c)

[devilazpl]

@bishnuinet

its the same but some ppl maybe prefer arrays in C++ style where its

string array[];

i dont know at all ;/

[immortaljin]

lol, this is so funny, are you using a book as a guide or something? because my course at school is following EXACT the same steps as you are, so I'm wondering if you both are using a book as guide line, or if they are making there slides based on your videos ;p

[Azutrumable]

@immortaljin They are copying bucky :D

[xero907]

"...but I'll be telling you that in the next tutorial."

"Honey time to go sleep!"

"FFFUUFUUUU- *BEEEEEEEP*"

[DazKins]

int the app.net add to the right is that a creeper on the rihgt?

[awesomelemonade]

GENERIC METHODS

[chrisxd146]

I'm understanding this less and less, this sucks, maybe i need a break, but idk

[DemocraWatch]

Sweet!!!

[WesThorburn]

Does anyone know how multi-dimensional arrays work in this case?

[zerohourkevin]

bucy ftw

[preymouth]

I dont think many people understood the last tutorial; he's lost about 130,000 viewers!

[PurexOvvnage]

Is this like type conversions in c++?

[eamedrolf]

did you put this on your site?

I didn't see it..

[360boxes]

Hey, why does he use Character[] cray and Integer[] iray instead of char[] cray and int[] iray?

[CommieDogg]

@360boxes Because you can't use primitive types like int and char in generic parameters.

[GoldAK47]

@360boxes Every primitive type has a corresponding "wrapper" class... for int, it's wrapper class is Integer. For char, it's Character. Same shit really...

[matthazan]

@360boxes

He prob should of used int, and char to create those arrays but his syntax is completely acceptible b/c arrays are objects and 'Integer' and 'Character' represent objects.

[Almjz]

@360boxes because generics only work with objects and not primitive types

[kratzzro]

@360boxes

Because char and int are primitives and they don't work with ArrayList

[ericpiwele]

@360boxes

generic method only process object and never primitive types, that's why the array are created in the correspondant type wrappers

[PringDaddyPring]

@360boxes

Collections/Generic methods have to take objects not primitive data... the int's get autoboxed to Integers when they are added

[mitzu4lakers]

@360boxes is the same thing for example int a[] is the same as int[] a it doesn't affect the code it's just another way of writing it.

[TehGameMaker]

@360boxes because char and int are just shorthand ways of calling the classes Character and Integer

[xGxUxIxTxAxR]

@360boxes I believe they're the reference data types. I haven't a clue on the purpose though :P

[chibee1620]

@360boxes He needs it to be an array of objects, not primitives.

[ciaranst]

@360boxes He is using the full version of the data type to avoid confusion instead of the truncated int and char.

[JavaMonsterification]

@360boxes Read up on Generics and their associated wrapper classes that will clear up your question

[888888881me]

@360boxes here. I am a little late.... but here... lol. I'm not even sure if you remember posting this xD but here is why you say Integer and not int

/watch?v=GG7AjNXS0OA

[devilazpl]

@360boxes

Int, Char are basic types but Integer and Character are classes that represent Int or Char, they have some more methods

[lolmewn]

@360boxes It's both possible, Character[] is the super class. I'd use char[] aswell, but apparently it doesn't matter.

[Dalwanaage]

Thanks Man.

[hyp3o]

Thank you, this is helping me a lot

[23SuS23]

what java are you using? drJava or what?

[Flamehead78]

do you mean IDE, cuz he's using eclipse, watch his second or third java programing video