compare « Operation « Java I/O Q&A





1. File Compare and Highlight - Java    stackoverflow.com

I want to compare two text files and want to highlight the differences. Can any one of you help me in doing that thro Java program. Thanks in advance.

2. Compare file extension to file header    stackoverflow.com

I'm starting to design an application, that will, in part, run through a directory of files and compare their extensions to their file headers. Does anyone have any advice as to the ...

3. Compare two html files    stackoverflow.com

Hi I want to compare code of two HTML files. How do I achieve this?

4. Comparing file contents cross platform    stackoverflow.com

I have a file that has been created on Windows, so it has carriage returns "\r\n". The file is used in a test, the contents of the file are compared to the ...

5. cant compare two files. while loopsdont work    stackoverflow.com

EDIT: i have to files, FileOne and FileTwo, which in every line there is a word or more. and i want to compare these two file, and see if every line of ...

6. how to compare contents of two files in java?    bytes.com

Hi afroz! We won't write that code for you, but we can help you write it yourself. But first of all, we need to know what the output should be. I ...

7. File comparison    coderanch.com

I'm writing an app that has to compare files to previous versions of that file, to see if it's changed. So far, I've read all the files, recording their 'last modified' attribute - to compare the files (as there may be a lot), I first compare this attribute. If it has changed, I need a way to see if the file ...

8. Comparing t file data    coderanch.com

What do you want the comparison to do? return a boolean (true if same, false if different)? return the index of the first difference it finds? produce some summary of the actual differences (cf 'diff')? If it is either of the first two, I recommend loading each file into a String and using String.equals() or String.compareTo(). If you need any more ...

9. Comparing Files.    coderanch.com





10. Comparing files...    coderanch.com

11. File content comparison    coderanch.com

Hi, This is my current predicament... I need to compare contents of two files, and store entries that are missing in fileA, but are present in fileB into fileC. How would i go about comparing the file entries? Let's say that the files are in comma delimited CSV format... Thanks in advance Dmitry

12. comparing two files    coderanch.com

Hi All, My intension is to grab the common lines from 2 files in which there are lines of 6 digits with a hyphen in the middle. like say 123-652 982-648 and so on........... It's surprising to me that the following code prints nothing though I have many lines in common in those 2 files. Can somebody please help where I ...

13. Compare files    coderanch.com

Hi, welcome to the ranch! This is relatively easy and entertaining to write for yourself. Have you worked with the File object APIs? If you create a File with the name of a directory you can ask it for a list of files in the directory. When one of those turns out to be another directory use recursion to drill into ...

14. compare two dates    coderanch.com

15. Comparing two huge files    coderanch.com

Hi Guys I have 2 files (worst case - each 20 MB). Suppose file 1 : test1.txt and file 2 : test2.txt Now, i need to read test1.txt and compare the entries in test2.txt. If text of test1.txt not found in test2.txt, i need to process else ignore. I have been using a BufferedReader to read from the files and am ...

16. comparison on YEAR attribute of Calendar    coderanch.com

i am using a piece of java script to get a GUI display for a user to select a date for an application i am working on. what i then want to do is to test whether the date selected is plus or minus one year of the current date. the users date is saved in Date format, but i am ...





17. Question about file comparison    coderanch.com

Hello there, I have 500k files in GFS, and every time I add a new file into system, I need compare the new one with the other 500k files to see whether it exists or not, if no, add it to the system. here is my question: How I can design a effective method to make comparison? using database? or some ...

18. comparing two comma delimited files    coderanch.com

get first A get first B while A not at end and B not at end if a.key < b.key or b at end process A only get next A if a.key > b.key or a at end process B only get next B if a.key == b.key process match get next A get next B end while

19. Comparing Two Files    coderanch.com

I would first check if the lengths are equal, and if not, return false. Then open two FileInputStreams wrapped with BufferedInputStreams, one for each file. Then write a loop that reads one byte from each file, and returns false if the bytes are not equal. Keep looping until one the end of a file is reached. (You already know they're the ...

20. Comparing contents of a file with String[]    coderanch.com

Hi, I am trying to compare the contents of an array to what ever there is in a file...so that if - whatever i have in array[i] is in file DO SOMETHING else DO SOMETHING as of now i take the first element of my array and check it agains my file, however, when i find a match in my file ...

21. problem while comparing phone numbers inside two different files    coderanch.com

ubFis = new FileInputStream(base); dndFis = new FileInputStream(dnd); ubBuff = new BufferedReader(new InputStreamReader(ubFis)); dndBuff = new BufferedReader(new InputStreamReader(dndFis)); fout = new FileOutputStream(out); writeBuff = new BufferedWriter(new OutputStreamWriter(fout)); String ubreadLine = ""; String dndreadLine = ""; long ubMsisdn = 0; long dndMsisdn = 0; ubreadLine = ubBuff.readLine(); dndreadLine = dndBuff.readLine(); while (ubreadLine != null && dndreadLine != null) if (ubreadLine.equals("")) { ubreadLine ...

22. comparing the two files    java-forums.org

Hi all, I want to compare the line1 in file1 with all the lines in file2 ..... like dat i need to repeat for all the lines in file1 pls tell me the way how to achieve this......... while (( cnt5= actlFileBufRdr.readLine()) != null){ s[i]=cnt5; count++; i++; } while (( cnt6= expcFileBufRdr.readLine()) != null){ s1[j]=cnt6; count1++; j++; } for(i=0;i

23. Compare 2 files    java-forums.org

I would like to compare 2 files in Java. please send me the code snipt for this scenario: File1: ./divisions/Z7346/Z1111/0064C/123456/123456_aug11.pdf ./divisions/Z7346/Z3333/0064C/434234/345678_aug11.pdf ./divisions/Z7346/Z4444/0064C/343444/234567_aug11.pdf File2: ./divisions/Z7346/Z2260/0064C/123456/123456_aug11.pdf ./divisions/Z7346/Z2222/0064C/434234/345678_aug11.pdf ./divisions/Z7346/Z3333/0064C/343444/234567_aug11.pdf It needs to compare these files and print the diffrence by comparing the report name(234567_aug11.pdf,345678_aug11.pdf) Eg. Check if the report 345678_aug11.pdf is same in both file 1 and 2. The file name will normally be ...

24. File comparison    forums.oracle.com

26. how to compare date between 2 file?    forums.oracle.com

27. Compare file modifications dates.    forums.oracle.com

28. Urgent:Comparing file size and file hashcode    forums.oracle.com

29. Compare Two Files    forums.oracle.com

30. comparing text of 2 pdf-files or doc-files    forums.oracle.com

31. Comparing 2 files contents    forums.oracle.com

32. Comparing two bcp files.    forums.oracle.com

33. Comparing files side-by-side    forums.oracle.com

Hi everybody, I don't have a Unix system, but I've worked with them in the past and found some of their commands to be very useful, like sdiff, where two files are compared side-by-side. I've been looking for how sdiff is implemented, but I can't find it, and I'd like to write a variant of it for myself in Java. What ...

34. How to compare two files    forums.oracle.com

Hi, My scenario is, there are two files named as test.txt and test1.txt which has a content like a log file. For example test.txt contains a content like this 01:10:25 12-Oct-2008 10.168.65.117 C:\Java\Test\file2.txt 01:10:25 12-Oct-2008 10.168.65.117 C:\Java\Test\file1.txt 01:10:25 12-Oct-2008 10.168.65.117 C:\Java\Test\file3.txt test1.txt content is like this. 01:10:25 12-Oct-2008 10.168.65.117 C:\JDK\Test\file1.txt 01:10:25 12-Oct-2008 10.168.65.117 C:\JDK\Test\file2.txt From this example, First thing is, I ...

35. Comparing dates and file names    forums.oracle.com

36. How to compare two files?    forums.oracle.com

Thanks. I checked out that site that forwards me to another site http://www.darwinsys.com/freeware/index.jsp where there is a java version diff. That program is good for sure meaning that it works as diff command on UNIX by comparing two files and printing out the differences. I am going to be a little greedy here: is there any program that can compare the ...

37. need help to compare files    forums.oracle.com

38. Comparing two files in Java    forums.oracle.com

Two files are same if they have the same content. Finding out whether two files are the same would entail actually comparing the contents of the two files. If there is some library function I can use or some code that I can borrow it would save me time and effort. Also, what about non - text files? How does one ...

39. Comparing large files    forums.oracle.com

40. File compare    forums.oracle.com

step 1:I need to go to D drive and locate a particular notepad. step 2:and in that notepad i need to find out how many #6666-666 exists? step 3:now i need to go to C drive and locate a particular notepad. step 4:and in that notepad i need to findout how many #6666-666 exists? Final step : i need to display ...

41. efficient way to compare file content?    forums.oracle.com

Hi, I am trying to think of an efficient way to verify that I modified a file and only that file, this could include adding or removing a file. I keep trying to think of all the different 'what ifs" and now my head is swimming with possibilites. Some of the considerations I have thought of: * if one list has ...