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Java Cannot Create A Generic Array Of Inner Class

Why it has to be static when the outer is generic? –midnite Jul 20 '13 at 5:23 Actually, I'll rescind the "it has nothing to do with generics" part. Static classes are instantiated first and their lifetime is the lifetime of the class v. Ubuntu 16.04 installer cant see SSD drive What is the point of update independent rendering in a game loop? And every time you write MyClass by itself in an instance method of GenericClass, it is actually short for GenericClass.MyClass. http://pgexch.com/java-cannot/java-cannot-create-java-virtual-machine-1.html

Lab colleague uses cracked software. Are “la malplej juna” and “la plej maljuna” entirely interchangeable? So you must know the component type when you create the array. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Why "silver-tongued" for someone who is convincing? How can I take a powerful plot item away from players without frustrating them? Why aren't Java's generics implicitly polymorphic?160What's the reason I can't create generic array types in Java?332How to get a class instance of generics type T16094Why is it faster to process a Besides, the only way to create a generic array in java is create a raw type and then cast it to generics (see here: "Cannot create generic array of .." -

Not Inner, as we already discussed. That means it has a reference to an instance of the enclosing class. You can solve this by transforming it into a nested static class: private static class Entry { public Entry() { } } share|improve this answer answered Jun 30 '15 at 18:11 I am seen in darkness and in light, What am I?

What is the most efficient & fastest way to speed up the installation of packages with thousands of items? And you can't just make it static, because it will then need E also. Node[] nodeArrays = new Node[ARRAYSIZE]; share|improve this answer answered Oct 24 '13 at 9:16 Kashif Nazar 4,88011227 1 @kocko It would work even if Node is an interface. http://stackoverflow.com/questions/20475142/java-doesnt-allow-arrays-of-inner-classes-for-a-generic-class Ubuntu 16.04 installer cant see SSD drive Drawing a torso with a head (using \draw) How often should I replace windscreen wiper blades?

My context is different. –geekprogrammer May 4 '15 at 12:01 Is there a reason you've made Entry an inner class? Your IDE should be telling you that. Work-around #3: Arrays of inner classes inside parameterized types The last situation we'll walk through is actually very similar to work-around #2 once you understand what inner classes "really are". Taking the class out of the outer class works.

I reopened your question accordingly –Konstantin Yovkov Aug 1 '14 at 21:42 Possibly this thread would be helpful, too: stackoverflow.com/questions/20475142/… –Konstantin Yovkov Aug 1 '14 at 22:07 add a http://stackoverflow.com/questions/31145359/why-cant-i-create-an-array-of-an-inner-class-of-a-generic-type but why the compiler says okay if MyClass is static? share|improve this answer edited Jul 20 '13 at 7:08 answered Jul 20 '13 at 6:48 Brian Roach 56k685118 I like the explanation and JLS citation, but the second part asked 3 years ago viewed 1892 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter!

And it is allowed, provided two things: You never assign into the array an A that is not a B. have a peek at these guys Start a coup online without the government intervening Will boring a cylinder affect its longevity thereafter? Browse other questions tagged java arrays generics or ask your own question. public class Foo { void someMethod() { Point[] points = new Point[3]; } class Point { float x, y; } } java generics inner-classes share|improve this question edited Jan 15 '15

more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation On which point(s) in a jet engine does the reaction force act? Is there a word for being sad about knowing that the things that make you happy will eventually go away Build me a brick wall! check over here The full name of class Entry is MapImpl.Entry.

Why is (a % 256) different than (a & 0xFF)? Why is the 'You talking to me' speech from the movie 'Taxi Driver' so famous? What is role of palladium in hydrogenation reactions?

I didn't mark down or anything because it could work. –Andrew Scott Evans Aug 1 '14 at 19:47 I know that making the inner class static would work.

So now back to generics: While arrays "know their element type", they only know the "raw" type -- the type that forgets all about generics. more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Show that the square matrix A is invertible Someone peeled an American flag sticker off of my truck. Your second idea is exactly my current workaround and seems to work pretty well.

So Point written by itself means Foo.Point, a parameterized type. Therefore, you need to parametize the InnerClass since it has no idea what is being dealt with. But i want to know the reason behind it. –geekprogrammer May 4 '15 at 11:40 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign this content more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

So we'll use C.D to explain what's going on, even though you can't write it. Any advice would be appreciated. What is the most someone can lose the popular vote by but still win the electoral college? new Map.Entry[numEntries];.

Why is this so and how can I fix/workaround it? If this is correct, then Point should be a nested class, instead of an inner class. How to delete the lines from a file that do not contain dot? new ArrayList[5].

Ballpark salary equivalent today of "healthcare benefits" in the US? Every time inside an instance context of OuterClass where you write just InnerClass, without explicitly qualifying it, it is implicitly treated as OuterClass.InnerClass. Build me a brick wall! i.e.

So let's take the analogy and ask, what do you do when you want to do ArrayList[] lists = new ArrayList[3]; There are two ways: Create an array of the raw Zener diodes in glass axial package - not inherently shielded from photoelectric effect? The equivalent way to do this for our case would be GenericClass.MyClass[] foo = new GenericClass.MyClass[2];. asked 2 years ago viewed 223 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Linked 160 What's the reason I can't create generic array types