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  • comma in regex in String.replaceAll() method?

    - by kknight
    My code tries to replace "," with "/" in a string. Should I escape "," in the regex string? Both of the two code snippets generated the same results, so I am confused. Code snippet 1: String test = "a,bc,def"; System.out.println(test.replaceAll("\\,", "/")); Code snippet 2: String test = "a,bc,def"; System.out.println(test.replaceAll(",", "/")); Should I use "," or "\,"? Which is safer? Thanks.

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  • Concate String In MYSQL

    - by streetparade
    How can i concate this string in mysql desc=desc+$desct what i want is each time i insert a variable from PHP that the string is added to the string which was already in db and seperated with || the field desc should look like this desc 10||30||90||710 say i want to add the value 20 desc 10||30||90||710||20 then the desc field should look like this How can i implement this?

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  • Java: Converting UTF 8 to String

    - by kujawk
    When I run the following program: public static void main(String args[]) throws Exception { byte str[] = {(byte)0xEC, (byte)0x96, (byte)0xB4}; String s = new String(str, "UTF-8"); } on Linux and inspect the value of s in jdb, I correctly get: s = "ì–´" on Windows, I incorrectly get: s = "?" My byte sequence is a valid UTF-8 character in Korean, why would it be producing two very different results?

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  • [java] How to get ALL the information from a socket

    - by raven
    Hello, I'll begin this question with the claim that I have read the java networking guide before asking you. I do not understand how to READ the socket and get all the info summed up into a string. the socket might contains more than 1 line [trying to make a chat]. Please do no refer me to any other site unless it clearly states "this exact line does this.." because I failed to understand what this code part does BufferedReader stdIn = new BufferedReader( new InputStreamReader(System.in)); String userInput; while ((userInput = stdIn.readLine()) != null) { out.println(userInput); System.out.println("echo: " + in.readLine()); } Please, I just want to make a loop that will receive information from a socket, get all the content together into one string [I also want it to know where to add another line]. Thanks allot for anyone who helps, I have been trying to get an answer from tuts for hours and just failed to understand!

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  • Get class instance by class name string

    - by VDVLeon
    Hi all, I noticed the function Object.factory(char[] className) in D. But it does not work like I hoped it would work; it does not work ;) An example: import std.stdio; class TestClass { override string toString() { return typeof(this).stringof; // TestClass } }; void main(string[] args) { auto i = Object.factory("TestClass"); if (i is null) { writeln("Class not found"); } else { writeln("Class string: " ~ i); } } I think this should result in the message: "Class string: TestClass" but it says "Class not found". Does anybody know why this happens and how I could fix it ? Or do I need to make my own class factory. For example by make a class with a static array Object[string] classes; with class instances. When I want a new instance I do this: auto i = (className in classes); if (i is null) { return null; } return i.classinfo.create();

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  • Date or String declaration in a javabean

    - by Jeff
    Should I declare an attribute in a javabean that holds a date value a user types in on an HTML form as a String or Date? I feel I should declare as a Date, however, since I do server validation on all form data, if the date doesn't validate, when I pass the form bean back to the jsp view for correcting, I lose the date value that the user tried to type in. If I declare as a String, if the date doesn't validate, I'm able to set the string value in the bean and pass the bean back to the view and the user can see what they incorrectly typed. But with a String declaration for Date inputs I forsee problems down the road with my DAO. I want to be able to use a DAO utility which generates a prepare statement using setObject. In my html form I request dates to be mm/dd/yyyy and in DAO i'm using Oracle Date. I can not use hibernate or such, since this is a corporate intranet. What is the best practice "pattern" I should be following??

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  • How to: compare array with string and create hastags before tweeting

    - by krike
    Let's say I have the following array (which is the returned value of a database query): Array ( [0] => PHP [1] => Webdesign [2] => Wordpress [3] => Drupal [4]) And the following string: Working With Wordpress Shortcodes How can I compare the array with the string to see if the string contains any word stored in the array? (hopefully that made sense to you :d ) When he finds a match (eg: Wordpress) it should create a hashtag like so: Working With #Wordpress Shortcodes

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  • Removing item from a comma delimited string when removed from list view

    - by Yogender Siwach
    I'm using a combo box to select an item from a list of 25 items. The selected item is input in a text box in a comma delimited string. It is updating a list view and showing each item separately by breaking the comma delimited string. The text box is not visible to users but doing the work in back end. Now I want to remove any item from list view and want it so that the text box containing the comma delimited string should also change and remove that item from the string. Is it possible?

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  • Android: Referring to a string resource when defining a log name

    - by spookypeanut
    In my Android app, I want to use a single variable for the log name in multiple files. At the moment, I'm specifying it separately in each file, e.g. public final String LOG_NAME = "LogName"; Log.d(LOG_NAME, "Logged output); I've tried this: public final String LOG_NAME = (String) getText(R.string.app_name_nospaces); And while this works in generally most of my files, Eclipse complains about one of them: The method getText(int) is undefined for the type DatabaseManager I've made sure I'm definitely importing android.content.Context in that file. If I tell it exactly where to find getText: Multiple markers at this line - Cannot make a static reference to the non-static method getText(int) from the type Context - The method getText(int) is undefined for the type DatabaseManager I'm sure I've committed a glaringly obvious n00b error, but I just can't see it! Thanks for all help: if any other code snippets would help, let me know.

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  • Mysterious different conversion to string[] of seemingly same input data

    - by Roman Kuzmin
    During investigation of some problem I found that the reason was unexpected different conversion to string[] of seemingly same input data. Namely, in the code below two commands both return the same two items File1.txt and File2.txt. But conversion to string[] gives different results, see the comments. Any ideas why is it? This might be a bug. If anybody also thinks so, I’ll submit it. But it would nice to understand what’s going on and avoid traps like that. # *** WARNING # *** Make sure you do not have anything in C:\TEMP\Test # *** The code creates C:\TEMP\Test with File1.txt, File2.txt # Make C:\TEMP\Test and two test files $null = mkdir C:\TEMP\Test -Force 1 | Set-Content C:\TEMP\Test\File1.txt 1 | Set-Content C:\TEMP\Test\File2.txt # This gets just file names [string[]](Get-ChildItem C:\TEMP\Test) # This gets full file paths [string[]](Get-ChildItem C:\TEMP\Test -Include *) # Output: # File1.txt # File2.txt # C:\TEMP\Test\File1.txt # C:\TEMP\Test\File2.txt

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  • Unicode string handling using Windows API

    - by DeadMG
    I always assumed that Unicode string handling was some dark art. However, I've seen that the Windows API has functions for comparing Unicode strings, for example. Does that mean that it's actually feasible to write a Unicode string class that can perform simple actions like sorting, equality comparison, and extraction from a file? Or are there hidden gotchas in the use of these functions that makes it actually a really bad idea? I'm just looking at libraries like ICU and they seem incredibly over-complicated compared to what a Unicode string class backed by the Windows API could actually look like, which would resemble the Standard string classes quite closely.

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  • How can I return to a string address and then assign it to a new string?

    - by Y_Y
    I have 1 function that I want to return the address of an assigned string to the main function and assign an new string pointer with the same address so that the new string will have the contents of the old string. For example: unknown_datatype function() { char *old = "THE STRING"; return old; } int main() { char *snew = ""; snew = function(); return 0; } *unknown_datatype means I don't know that to put there... *How can I approach this without changing anything in the main() method

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  • Searching the first few characters of every word within a string in C#

    - by user1704669
    I am new to Programming languages. I have a requirement where I have to return a record based on a search string. For e.g. I am having the following 3 records and my search string is 'Cal' 1)University of California 2)Pascal Institute 3)California University If I try string.Contains, all 3 are returned. If I try string.starts-with, I get only 3 but my requirement is I need #1 and #3 in the result. Thank you for your help. -Joel

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  • Converting a string into a CheckBox

    - by Chris
    I have a string which is ultimately the id of a CheckBox. What I need to be able to do is to access the CheckBox's properties from the string var myCheckBox:Object; var myString:String; myString = "checkbox_1" myCheckBox = Object(myString); ?!?! ... and then I'd need to get to myCheckBox.selected, and myCheckBox.label etc

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  • how to find and add a string to a file in linux

    - by user2951644
    How can I check a file for a string if missing the string automatically add it for example Input Input file test.txt this is a test text for testing purpose this is a test for testing purpose this is a test for testing purpose this is a test text for testing purpose I would like to add "text" to all the lines Desired Output this is a test text for testing purpose this is a test text for testing purpose this is a test text for testing purpose this is a test text for testing purpose Is it possible? many thanks in advance Hi guys thanks for all the help, for my case is not that simple. I wont know which line will be different and in the middle string it will not only have a single string. i will give a clearer case Input file test.txt Group: IT_DEPT,VIP Role: Viewer Dept: IT Group: IT_DEPT,VIP Dept: IT Group: FINANCE LOAN VIEWER Role: Viewer Dept: FINANCE Group: FINANCE LOAN VIEWER Dept: FINANCE Desired output file test2.txt Group: IT_DEPT,VIP Role: Viewer Dept: IT Group: IT_DEPT,VIP Role: - Dept: IT Group: FINANCE LOAN VIEWER Role: Viewer Dept: FINANCE Group: FINANCE LOAN VIEWER Role: - Dept: FINANCE So those that are missing "Role:" will be added "Role: - ", hope this clear things out, thanks in advance again

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  • Removing Numbers from a String using Javascript

    - by Abs
    Hello all, How do I remove numbers from a string using Javascript? I am not very good with regex at all but I think I can use with replace to achieve the above? It would actually be great if there was something JQuery offered already to do this? //Something Like this?? var string = 'All23'; string.replace('REGEX', ''); I appreciate any help on this.

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  • Indexing through Android string resources

    - by gssi
    OK, I've got the code to allow me to index through the string resources. Now, how do I get the value of a specific resource item without knowing its name? Here's the index loop: Field[] fLst = R.string.class.getFields(); for(Field f : fLst){ Log.i(dbgTag, "Field Entry: R.string." + f.getName()); } Thanks for your efforts ...

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  • How to print string in this way

    - by xRobot
    For every string, I need to print # each 6 characters. For example: example_string = "this is an example string. ok ????" myfunction(example_string) "this i#s an e#ample #string#. ok ?#???" What is the most efficient way to do that ?

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  • How can I put a string and an integer into the same array?

    - by Stelios M
    I have to following code. I want this to return an array e.g. arg[] that contains at arg[0] the number of the rows of my cursor and at arg[1] String(0) of my cursor. Since one is integer and the other is string I have a problem. Any ideas how to fix this? public String[] getSubcategoriesRow(String id){ this.openDataBase(); String[] asColumnsToReturn = new String[] {SECOND_COLUMN_ID,SECOND_COLUMN_SUBCATEGORIES,}; Cursor cursor = this.dbSqlite.query(SECOND_TABLE_NAME, asColumnsToReturn, SECOND_COLUMN_SUBCATEGORIES + "= \"" + id + "\"", null, null, null, null); String string = cursor.getString(0); int count = cursor.getCount(); String arg[] = new String[]{count, string}; cursor.close(); return arg; } The cursor and the results and correct i just need to compine them to an array in order to return that.

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  • JComboBox to string

    - by gabrielle fregil
    I have a String array of names, and then I added it into an editable JComboBox. The user can either pick his/her name from the choices or just input his/her name if not in the choices. How do I put the user input into a new string variable? String [] chooseName = { Mark, John, Allison, Jessica }; JComboBox combo = new JComboBox (chooseName); combo.setEditable(true); String chosenName = /* how do i place what the user inputed here? */

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  • Regex vs. string:find() for simple word boundary

    - by user576267
    Say I only need to find out whether a line read from a file contains a word from a finite set of words. One way of doing this is to use a regex like this: .*\y(good|better|best)\y.* Another way of accomplishing this is using a pseudo code like this: if ( (readLine.find("good") != string::npos) || (readLine.find("better") != string::npos) || (readLine.find("best") != string::npos) ) { // line contains a word from a finite set of words. } Which way will have better performance? (i.e. speed and CPU utilization)

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