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About 734 results for
arraylists
- Page 1
Re: Having trouble with comparing strings and arrays
Programming
Software Development
19 Years Ago
by shdwdrgn517
ArrayLists
have a .toString method but it calls the String.valueOf() method to translate and I've tried the .valueOf() so I figured the toString wouldn't work any better.
Re: Using objects in ArrayList
Programming
Software Development
13 Years Ago
by Eric Cute
ArrayLists
are used instead of arrays because it is dynamic meaning …
Re: Eclipse XML Encoding
Programming
Software Development
12 Years Ago
by JamesCherrill
ArrayLists
are serialisable, so if you put all your Shelves into an ArrayList<Shelf> object you can write that to XML as a single object, and read it back with a single read. How simple is that?
ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by netci
hi, my
arraylistS
in a covering arraylist behave like the same instance. i …=0; manupulate(myarrofarrs.get(i));[/CODE], and all the sub
arraylists
have become effected of the manupulation. i googled a little…
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by JamesCherrill
… code it looks like you are iterating through all the
ArrayLists
applying the same maipulation to all of them, in which… have populated the arraylist badly, if false you have multiple
arraylists
containing the same data. Either way it will help diagnosing…
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by netci
… were right, the population was wrong, just not in sub
arraylists
, member lists of the arraylist element objects. when i defining… been told to me to "deep copy" my
arraylists
now i see, i must "deep copy" the…
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by NormR1
Not sure what you are asking. Are you making copies of the objects the pointers in the ArrayList point to? Or are there only one set of objects with differents sets of pointers to them. The contents of the different
arraylists
all point to the same objects. Changing them via one arraylist references will change them for all arraylist references
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by netci
i want all the objects in the different
arraylists
have different instances. for example [CODE]((ArrayList)encapsulatingArrayList.get(0)).…
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by JamesCherrill
Here's a minimal block of code that shows different
arraylists
added to a master arraylist [CODE] ArrayList<ArrayList<…
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by netci
…(temp); masterlist.set(i,temp); i++; }[/CODE] all the little
arraylists
has become populated with hello.
Re: ArrayLists behave like the same instance in ArrayList of ArrayListS
Programming
Software Development
12 Years Ago
by JamesCherrill
… is static or you are executing code repeatedly across the
arraylists
. I realise you think both of those are not happening…
Please help! Adding Integer ArrayLists
Programming
Software Development
12 Years Ago
by dark_sider_1
… add (using the mathematical term) two Integer
ArrayLists
in Java, as well as divide them and …have large integers that are put into an
ArrayLists
, so to start off like 1233 and 1245…. How would I divide those two with
ArrayLists
? a.get(i)? I could easily do … like to add/divide the contents of the
ArrayLists
. If I used the get method and added…
Copying ArrayLists
Programming
Software Development
13 Years Ago
by 123a
…....I need to copy many
arraylists
, if the user wants 5
arraylists
I will have to create 5
arraylists
and put all the…
Re: Copying ArrayLists
Programming
Software Development
13 Years Ago
by JamesCherrill
If you need to create a variable number of
ArrayLists
then you will need some kind of container to put them in, eg an array or
ArrayLists
or an ArrayList of
ArrayLists
. Start with an new empty container, then in your loop create copies of the original ArrayList and add those copies to the container.
Re: Copying ArrayLists
Programming
Software Development
13 Years Ago
by apines
As far as I know, and correct me if I'm wrong - the [URL="http://download.oracle.com/javase/6/docs/api/java/lang/System.html#arraycopy(java.lang.Object, int, java.lang.Object, int, int)"]System.arraycopy[/URL] copies arrays, not
ArrayLists
.
Re: Copying ArrayLists
Programming
Software Development
13 Years Ago
by JamesCherrill
Yup, arraycopy copies arrays not
ArrayLists
. Collections.copy is the one. On the other hand, there is a constructor for ArrayList that does the same thing even more easily by taking any Collection as parameter and initialising the new ArrayList with all the data from that Collection, eg ArrayList myCopyList = new ArrayList(myOriginalList);
Java Arraylists
Programming
Software Development
13 Years Ago
by mbouster
… types as name , id , address etc. To implement this using
arraylists
I must declare it as below? [CODE]Arraylist Customer =new… specific customer. How I am going to do this with
arraylists
also??
Re: Java Arraylists
Programming
Software Development
13 Years Ago
by JamesCherrill
… all my previous statements about pre- and post- 1.5
ArrayLists
stand, but I'll withdraw the references to 1.6…
using arraylists
Programming
Software Development
15 Years Ago
by qwerty_ytrewq
… to be sorted.I want the solution when we use
arraylists
for sorting.Could you help me?
Re: using arraylists
Programming
Software Development
15 Years Ago
by qwerty_ytrewq
…;);//instead of such long code below,i want to use
arraylists
to do the below code for(int i=1;i…
Re: using arraylists
Programming
Software Development
15 Years Ago
by Ezzaral
Those are arrays - not
ArrayLists
- and why are you not using an object to represent each line item instead of three separate arrays for each piece of data?
Warning! Serialization + Java ArrayLists = Bad X_X
Programming
Software Development
15 Years Ago
by Alex Edwards
… data from one Client to another. Be aware of using
ArrayLists
during Serialization and consider creating your own Collection-implementation for…
Help with a Database using Arraylists only
Programming
Software Development
14 Years Ago
by TheStig01
… java language and no sql :/ He told me to use
arraylists
. Now i have been reading arraylist from the Java for…
Re: Help with a Database using Arraylists only
Programming
Software Development
14 Years Ago
by TheStig01
… i right in saying this?[/B] Then i create different
arraylists
per object. Where the index of each arraylist will correspond…
Re: Help with a Database using Arraylists only
Programming
Software Development
14 Years Ago
by Phaelax
… and store it in another ArrayList. To manage all these
ArrayLists
, I'd use a HashMap and associate each array list…
Subtracting values in arraylists
Programming
Software Development
12 Years Ago
by Mark_48
… i am going to plot on a graph. For example
ArrayLists
A,B A - B C 0.564 - 0.356 = 0…
Re: nested Arraylists
Programming
Software Development
14 Years Ago
by yilmazhuseyin
…<ArrayList<Integer>>(5); /*create a new
arraylists
of arraylist so outer arraylist has 5 element which means….*/ } /*at this point you got object named a (arraylist of
arraylists
of Integer objects) but you haven't put any integer…
Re: nested Arraylists
Programming
Software Development
14 Years Ago
by JugglerDrummer
there's nothing in the value/its not initialized. I don't think you have to initialize the
arraylists
inside the first one, they're already there. You just have to initialize the numbers inside. ;D
Re: Question about arrayLists
Programming
Software Development
14 Years Ago
by llemes4011
If I'm understanding your question, you want to know how to pass
ArrayLists
as arguments to methods, right? It's the same as any other arg. [code] public void func(ArrayList<Double> arrayList){}[/code]
deposit/withdraw account at index (issue with non static)
Programming
Software Development
8 Years Ago
by Elliander_1
…); } } // Used the following to test to make sure that the
ArrayLists
work: // System.out.println(transactionList.get(1)); } private static void…
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