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Java Util Arraylist Cannot Be Cast To Java Awt List


However, you are still writing too much code. Browse other questions tagged java arraylist sublist or ask your own question. Another simple solution below in this page. –GFPF Jan 25 at 8:48 add a comment| up vote 10 down vote The problem is you specified your List to contain ArrayLists - If a wondrous item was dynamically created as slimy, can I remove the smell with prestidigitation? More about the author

Browse other questions tagged java arrays casting multidimensional-array arraylist or ask your own question. my relevant code is here, please note the declarations are because I'm using GWT and thus have to declare some thigns as static and final... Also, it is not necessary to create a new ArrayList and assign that to PatientConditions3 if you immediately assign to PatientConditions3 again; you then create that ArrayList for nothing, it's immediately Thanks for the help.

Incompatible Types: Arraylist> Cannot Be Converted To List>

Arrays.asList doesn't return an ArrayList but an internal class that implements the List interface. That said, you should also be using generics here. Possible repercussions from assault between coworkers outside the office Why are wavelengths shorter than visible light neglected by new telescopes? Bear Bibeault Author and ninkuma Marshal Posts: 65291 97 I like...

Please, just look again. Well not necessarily. Third, never use concrete classes at the left of assignment operator. Java List If you need an ArrayList you could do something like: return new ArrayList(Arrays.asList(arr)); "Any fool can write code that a computer can understand.

You can't do that cast. Arraylist To List Java Why can issuing the same command create more output in tty than in pts/gnome-terminal? What is this line of counties voting for the Democratic party in the 2016 elections? http://stackoverflow.com/questions/6641006/casting-arrays-aslist-causing-exception-java-util-arraysarraylist-cannot-be-ca It won't support removal, though.

Is Area of a circle always irrational Space of real sequences with finitely many nonzero elements is a Banach space? Arraylist Java Build me a brick wall! How can I take a powerful plot item away from players without frustrating them? Now probably you only put Strings in there.

Arraylist To List Java

I had discovered that but forgot to post it in my question. http://stackoverflow.com/questions/30071072/cannot-be-cast-to-java-util-arraylist Teenage daughter refusing to go to school What is this line of counties voting for the Democratic party in the 2016 elections? Incompatible Types: Arraylist> Cannot Be Converted To List> current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Java.lang.classcastexception Java.util.arraylist Cannot Be Cast To Object How to prove that authentication system works, and that customer uses the wrong password?

Join them; it only takes a minute: Sign up ArrayOfObjects cannot be cast to Java.util.Collection up vote 0 down vote favorite I tried googeling this for several hours with all different my review here Not the answer you're looking for? That's the beauty of inheritance :) Can you give us a stack trace so we can see your exact problem.? What do I do? Arraylist To Array Java

share|improve this answer answered Apr 25 '12 at 12:08 Juan Alberto López Cavallotti 3,51531238 How shall I make an array of project then that works? How can an advanced (circa 7000 AD) spacefaring human civilization be prevented from entering its own solar system? Complement of CFL is Recursive What is this c. 1948 private plane with a sliding canopy? click site River Crossing Puzzle Where to take phone interview while at work Can a text in Latin be understood by an educated Italian who never had any formal teaching of that language?

java.util.List ret = Arrays.asList((String[])((DefaultListModel)selectedList.getModel()).toArray()); The error is... Hence the exception. Does the requirement really say it has to be a specific List implementation like ArrayList? (Bad form if so -- coding to interfaces is much more versatile.) [Asking smart questions] [About

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Safety - Improve braking power in wet conditions How to clear all output cells and run all input cells Boss sends a birthday message. Photographing Sea Turtles hatching on the beach What is a Rotary Club Word™? Arrays.asList() returns its own implementation of a List based on the implementation of the array parameter, which may not be an ArrayList. Good programmers write code that humans can understand." --- Martin Fowler Please correct my English.

Boss sends a birthday message. What is the point of update independent rendering in a game loop? Because you don't really know what kind (or implementation of) of List that method returns, your cast to ArrayList is not safe. navigate to this website How to prove that authentication system works, and that customer uses the wrong password?

Someone peeled an American flag sticker off of my truck. How do I deal with my current employer not respecting my decision to leave? Bottom line, say List> stuff = new ArrayList>(); String line = "a,b,cdef,g"; String delim = ","; String[] pieces = line.split(delim); stuff.add(Arrays.asList(pieces)); List> stuff = new ArrayList>(); String[] titles = {"ticker", "grade", The project administrator is kirillcool.

java arrays casting multidimensional-array arraylist share|improve this question asked Jul 10 '11 at 12:10 DannyTree 3871616 2 I'm on IBM JDK and for me even your first snippet gives the How to decline a postdoc interview if there is some possible future collaboration? You could even create a custom class that extends java.util.ArrayList and implements ListModel if you needed to. You might also want to use type parameters instead of raw types.

More broadly, you have a classic code style problem: You should be referring to abstract interfaces (ie List), not concrete implementations (ie ArrayList).