1. Sort a file with huge volume of data given memory constraint stackoverflow.comPoints:
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2. Fast way to alphabetically sort the contents of a file in java stackoverflow.comCan anyone recommend a fast way to sort the contents of a text file, based on the first X amount of characters of each line? For example if i have in the ... |
3. How do I use Java to sort surnames in alphabetical order from file to file? stackoverflow.comI have written this code and don't know how to sort surnames in alphabetical order from my file to another file. |
4. file based merge sort on large datasets in Java stackoverflow.comgiven large datasets that don't fit in memory, is there any library or api to perform sort in Java? the implementation would possibly be similar to linux utility sort. |
5. How do I sort very large files stackoverflow.comI have some files that should be sorted according to id at the beginning of each line.
The files are about 2-3 gb. I tried to read all data into an |
6. Union of two sequential files with Limited Memory stackoverflow.comI have 2 unsorted sequential files with huge record, different size of records.(as studentID, studentName and studentDept) I need to read them line by line with Java BufferedReader class, and write their ... |
7. Sorting file contents and the file size 4gb and ram 2 gb stackoverflow.comHow to sort the contents in the text file.But The file size 4 GB and my System RAM 2 GB.If i am trying sorting context it degrade system performa.Please help |
8. How to bitmaps and bitwise operators to sort and remove duplicates in a file? bytes.comWhat do you mean by using bitmaps and bitwise operators to sort and remove duplicates? There's the bitap algorithm that's used to search for a string but it doesn't sort. There's ... |
9. Sorting huge files by using an index coderanch.comHi, How does one index a flat (CSV) file for the purposes of sorting? If I know of the exact columns on which I have to sort (or generate the index for), what are the various techniques available for doing it? I read through the web and all indexing related tutorials were targeted towards DBMSes. Does anyone know of a tutorial ... |
10. Sorting of a large file coderanch.comWelcome to the JavaRanch. I think the answer to your question is "All of them". Sorting 2GB of anything is going to take a lot of time and resources. Different sorting algorithms work better for different distributions of data. You will need to get smart on sorting and try some alternatives before you can determine the best answer for your data. ... |
11. How to sort files based of creation of time, coderanch.comHello Friends how to sort files based on creation time 1. how can we get the creation time of a file and how to sort based of creation like FIFO type example a.txt 2.55 pm 2006 b.txt 3.07 am 2004 c.txt 1.04 pm 2007 e.txt 1.07 am 2004 so sorting should give e.txt,b.txt,a.txt and c.txt so please tell me how to ... |
12. Sorting data in an external file coderanch.com-------------------------------------------------------------------------------- An external file contains N unique keys(integers). I have to put them in ascending order. Each block contains M keys, and thus the file contains n=N/M blocks B1,B2...Bn. I can assume that the number of blocks, n, is an exact power of 2. The program can access only enough internal memory to manipulate about 3*M numbers(three blocks worth)at a time. ... |
13. Sorting files coderanch.comI got down what to do to get the names and whatnot, but when I run the program all the files go into the 'other' folder. Also the prompt spits out this: J:\>cd J:\organizer J:\Organizer>javac Organizer.java J:\Organizer>java Organizer Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 11 at Organizer$beginListener.actionPerformed(Organizer.java:83) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) ... |
14. Sort the rows of a file according to an integer java-forums.orgHi guys, I have a file with about 7'000 rows. Each row has 6 fields (words or numbers), all separated by a space, like this : field1 field2 field3 field4 field5 field6 I would like to sort all these lines according to the 3rd field which is actually an "int". I saw that people use the class Comparator and rewrite the ... |
15. sort out file according to name forums.oracle.com |
16. sort a file forums.oracle.comI have a file that has 50000 entries/records. Each line is a number. I would like to apply a sort algorithm to this file. Basically java program will read the file and sort it using selection sort algorithm. should I be reading the file into an array? what other data structure can I use ??? |
17. Sorting big file forums.oracle.comHi guys, I am trying to sort a big file without loading it into memory, what would be an efficient approach. Or at least to not load more than 20 MB at a time, sort somehow and write back to disk into an efficient way. The file contains log data - text, and I want to sort it on lines. Any ... |
18. Java report file sorting forums.oracle.comGood Day! I have a problem with sorting Data I have. /* 0.07415 1 0.08234 2 0.09053 3 ... 0.14787 10 ... 0.10952 1 0.11771 2 0.12591 3 ... */ This data is held in report.txt file, witch I'd like to sort by number in the second column. That way: /* 0.07415 1 0.10952 1 0.08234 2 0.11771 2 0.09053 3 ... |
19. java io, sort by date question forums.oracle.com |
20. Help - Sorting large number of Strings within a file. forums.oracle.comHello friends, I believe I am in an interesting situation and I need your expertise. I have to sort (efficiently) more than 100,000,000 words in a text file separated by new line "/n". Initially, I wanted to read the words and store them in an array (or any other data structure). Unfortunately, I cannot even create an array of String in ... |
21. How to sort files forums.oracle.com |
22. Sort files names into chronological order forums.oracle.comHi all, Thought I'd post as I've got to sort an array that could turn out to be quite tricky but was wondering if there was an easy method of doing this that anyone can think of, or maybe there's a class available that can do it for me. I have a String array private String directoryList[]; I'm reading filenames into ... |