How to populate an array with random text files.

I am making a Jeopardy program. I have my program set up so that it retrieves 5 random text files. I just want to know how I populate one array with all the lines from the text files my program is retrieving.

You can read a textfile line by line and add each line to an ArrayList. An ArrayList is very much like an array only that it's "open ended". You can start adding lines without first knowing how many you're going to get. If you still want an ordinary "static" array when you're finished reading lines you can easily get one from the ArrayList and then drop the ArrayList.

Similar Messages

  • How to fill an array with random numbers

    Can anybody tell me how I can fill an array with thousand random numbers between 0 and 10000?

    import java.util.Random;
    class random
         static int[] bull(int size) {
              int[] numbers = new int[size];
              Random select = new Random();
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    harris:
    for(;;) {
    int trelos=select.nextInt(10000);
    numbers=trelos;
                        for(int j=0;j<i;j++) {
    if(trelos==numbers[j])
    continue harris;
    numbers[i]=trelos;
    break;
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    /*This method fills an array with numbers and there is no possibility two numbers to be the
         same*/
    /*The following method is a simpler method,but it is possible two numbers to be the same*/
    static int[] bull2(int size) {
         int[] numbers = new int[size];
    Random select = new Random();
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              numbers[i]=select.nextInt(9);
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    System.out.println(nikos2[i]);

  • ¿How to fill an array with random letters?

    Hello, I was wondering If filling a bidimensional array
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    I was wondering If filling a bidimensional array
    (8x10 for example) with random letters could be done in C#, I've tried tons of stuff, but I can't manage to do it.
    >I was wondering If filling a bidimensional array (8x10 for example) with random letters
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    Yes.
    >I've tried tons of stuff, but I can't manage to do it.
    With exactly which part of this assignment are you having trouble?
    Can you create a 2-dim array of characters?
    Can you generate a random letter?
    Show the code you have written so far.
    Don't expect others to write a complete solution for you.
    Don't expect others to guess as to which part you're having difficulty with.
    Show the code you have working, and the code which you have tried which isn't working,
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  • How to read numeric array from a text file

    I'm new to file I/O in LabView. Basically, all I need is to read the attached 2000 x 9 array into an identical 2D array within LabView. I have tried simply using the READ FROM SPREADSHEET FILE VI but it only reads the first column. Any help would be greatly appreciated.
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    I cant open theother examples, so maybe I`m posting something similar, but here`s my approach in LV 6.1
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  • How to populate DB column with filename from file browse item?

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    Edited by: socpres on Sep 5, 2008 2:02 PM because message was truncated after attempting to preview it first.

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  • How to fill array with random number?

    I need to fill a 3-dimensional array that has user-controlled dimension sizes with random numbers (1-10). I'm unsure of how to do this. I feel like I have to use the initialize array and maybe the build array functions somehow but I'm not entirely sure. Any help would be appreciated. Thanks.

    Something like this
    Kudos are always welcome if you got solution to some extent.
    I need my difficulties because they are necessary to enjoy my success.
    --Ranjeet
    Attachments:
    Array with random number.vi ‏9 KB

  • How to populate a page with images in across/down direction?

    Hi,
    Does anyone know how to populate a page with images in across and down direction (for example 6 X 6 )? It seems that I cannot use data table because records are only running downward and each row can have one record.
    Any suggestion would be appreciated. thanks.

    Alex,
    You can create your own tabular form using APEX_ITEM API's
    Create report and you can put similar code to following
    SELECT APEX_ITEM.TEXT(1,col1) pk1, APEX_ITEM.TEXT(2,col2) pk2 FROM your_tableSo data will be displayed in TEXT boxes as if it's a tabular form. Now you need to handle INSERT/UPDATE/DELETE processes manually. You can easily handle INSERT and DELETE. But handling UPDATE can be a nightmare. What if user has updated both the column values?
    Updated details
    One way out would be to use ROWID as Primary key to handle DELETE and UPDATE
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    Hari
    Edited by: Hari_639 on Dec 3, 2009 6:52 PM

  • How to build a array with high sampling rates 1K

    Hi All:
    Now I am trying to develop a project with CRio.
    But I am not sure how to build a array with high sampling rates signal, like >1K. (Sigle-point data)
    Before, I would like to use "Build Arrary" and "Shift Register" to build a arrary, but I found it is not working for high sampling rates.
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    Thanks
    Attachments:
    Building_Array_high_rates.JPG ‏120 KB

    Can't give a sample of the FPGA right now but here is a sample bit of RT code I recently used. I am acquiring data at 51,200 samples every second. I put the data in a FIFO on the FPGA side, then I read from that FIFO on the RT side and insert the data into a pre-initialized array using "Replace Array subset" NOT "Insert into array". I keep a count of the data I have read/inserted, and once I am at 51,200 samples, I know I have 1 full second of data. At this point, I add it to a queue which sends it to another loop to be processed. Also, I don't use the new index terminal in my subVI because I know I am always adding 6400 elements so I can just multiply my counter by 6400, but if you use the method described further down below , you will want to use the "new index" to return a value because you may not always read the same number of elements using that method.
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    CLA, LabVIEW Versions 2010-2013
    Attachments:
    RT.PNG ‏36 KB
    FIFO read.PNG ‏4 KB

  • How to create 2D array with 3 rows and unlimit column?

    how to create 2D array with 3 rows and unlimit column?

    Here are images of what I described in my previous post
    Message Edited by JoeLabView on 11-14-2007 07:56 AM
    Attachments:
    2D-array_code.PNG ‏7 KB
    2D-array_values.PNG ‏13 KB

  • How to populate smart form with new values

    Hi!
    I am new to smart form . Can anybody help me in how to populate smart form with some new fileds. Actually i have to populate credit memo form with some customized values..

    Hello,
    Please elaborate your query more in order to be comprehendable.
    Regards,
    Shehryar

  • Reading in an array from a text file

    I'm trying to use a text file to load in some configuratin
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    like gamename=Chess&gamescore=100 , etc... but some of the data
    needs to be in an array. Can someone please point me in the right
    direction to how I can read in an array from a text file?
    Thanks!

    the easiest way is to create a string with the (soon-to-be)
    array elements separated by a delimiter (like a double comma). read
    in your string, then use the split() method of strings to split
    your string into an array.

  • How to get summary columns in delimited text file

    How to get summary columns in delimited text file
    I am trying to generate a delimited text file output with delimited_hdr = no.The report is a Group above report with summary columns at the bottom.In the text file the headers are not getting repeated & thats ok.The problem is the summary data is getting repeated for each row of data.Is there a way where i will get all the data & summary data will get displayed only once.I have to import the delimited text file in excel spreadsheet.

    Sorry there were a typos :
    When I used desformat=DELIMITEDDATA with desttype=FILE, I get error "unknown printer driver DELIMITEDDATA". When you look for help, DELIMITED is not even listed as one of the values for DESTFORMAT. But if you scroll down and look for DELIMITER it says , this works only in conjuction with DESTFORMAT=DELIMITED !!!!!!??!! This is in 9i.
    Has this thing worked for anybody ? Can anyone please tell if they were able to suppress the sumary columns or the parent columns of a master-detail data for that matter ?

  • Write arrays into a text file in different columns at different times

    Hi,
              I have a problem write data into a text file. I want to write 4 1D arrays into a text file. The problem is that I need to write it at different time and in different column (in other word, not only append the arrays).
    Do you have an idea to solve my problem?
    Thank you

    A file is long a linear string of data (text). In order ro insert columns, you need to rewrite the entire file, because colums are interlaced over the entire lenght of the file.
    So:
    read file into 2D array
    insert columns using array operations
    write resulting 2D array to file again.
    (Only if your colums are guaranteed to be fixed width AND you know the final number of colums, you could write the missing columns as spaces and then overwrite later. Still, it will be painful and inefficient, because column data are not adjacent in the file.)
    LabVIEW Champion . Do more with less code and in less time .

  • How do i split content from the text file using tab and spaces...?

    Hi.. Just want to ask help to all the experts. Im new in java and i have this problem on how to split the contents of the text file. ill show you the contents in order to let you see what i mean.
    FileName: COL.txt
    AcctNo AcctName Primary Secondary Status Opendate
    121244 IPI Company Noel Jose Active 12/05/2007
    As you can see the content i want to split it per column.. Please help me

    Jose_Noel wrote:
    Hi prometheuzz,
    What do you mean by one thread...?You created two threads* with the same question in it. That way, people might end up giving you an answer that has already been posted in your other thread: thus wasting that person's time.
    Just don't create multiple threads with the same question please.
    * a thread is a post here at the forum

  • How to write & search array data in a file

    hi
    Can anyone give me an idea about writing an array into a file by placing
    each array element in a line and how to search an array element
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    Thanks in advance

    Well, you can serialize any object - and of course re-read it.
    See http://java.sun.com/j2se/1.5.0/docs/api/java/io/ObjectOutputStream.html for an example.
    The easiest way would be to create an encapsulating object, which you then fill with any data you want to serialize. For example:
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