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  • Regexp match in Java

    - by tinti
    Regexp in Java I want to make a regexp who do this verify if a word is like [0-9A-Za-z][._-'][0-9A-Za-z] example for valid words A21a_c32 daA.da2 das'2 dsada ASDA 12SA89 non valid words dsa#da2 34$ Thanks

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  • Java RegExp ViewState

    - by CDSO1
    I am porting some functionality from a C++ application to java. This involves reading non-modifiable data files that contain regular expressions. A lot of the data files contain regular expressions that look similar to the following: (?<=id="VIEWSTATE".*?value=").*?(?=") These regular expressions produce the following error: "Look-behind group does not have an obvious maximum length near index XX" In C++ the engine being used supported these expressions. Is there another form of regexp that can produce the same result that can be generated using expressions like my example as input?

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  • Is it possible for a java.lang.Process to inherit the environement variables from another java.lang.

    - by Eric Leung
    I am trying to use groovy to do shell scripting on unix, but I am not having any luck having one process retain the environment variables changed by another process. For example, def p1 = ["bash", "-c", "source /some/setEnv.sh"].execute() Now, I would like a second process, p2, to inherit the environment variables that was set in p1. How can I do this? I don't see anything in java.lang.Process or its groovy extension that would spit out the environment variables after the process has executed.

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  • File explorer java

    - by Studer
    I'd like to have some kind of file browser like Windows Explorer inside a Java Application. I just want something that's able to list file inside a folder recursively. Is there a simple way to do this ? I already tried to use JFileChooser but it's not what I want.

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  • Java loop for a certain duration

    - by portoalet
    Hi, Is there a way I can do a for loop for a certain amount of time easily? (without measuring the time ourselves using System.currentTimeMillis() ?) I.e. I want to do something like this in Java: int x = 0; for( 2 minutes ) { System.out.println(x++); } Thanks

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  • Eclipse - Handling Java Exceptions like in NetBeans

    - by Xorty
    I recently moved from NetBeans to Eclipse and I very much miss one great feature - whenever I use method which throws some kind of exception, NetBeans alerted me and I needed to add try-catch and NetBeans automatically generated exception type for me. Is there something similiar for Eclipse? f.e. : Integer.parseInt(new String("foo")); NetBeans alerts I need to catch NumberFormatException. Eclipse doesn't alert me at all I am using Eclipse Java EE IDE for Web Developers, 3.5 - Galileo

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  • FileReader File not Found Java

    - by Lucas Camargo de Carvalho
    I have done everything I know. The file is not a ".filetype.filetype". It is in the same folder as the .settings and the other project files. Why is this not working? Full path isn't working either, but strangely, a Scanner is working. import java.io.FileReader; public class test { public static void main(String[] args) { FileReader testFileReader = new FileReader("hotels.json"); } }

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  • Open PDF file on fly from Java application

    - by Mr CooL
    Is there any way to have a code where it can be used to open PDF file in Java application but do not side to any platform. I mean using batch file in Windows could do that. Can it be any other way to have platform independent code to open PDF on fly.

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  • how to implement k-means for simple grouping in java

    - by thandar
    Hi all, I would like to know simple k-means algorithm in java. I want to use k-means only for grouping one dimensional array not multi. For example, before grouping the array consists of 2,4,7,5,12,34,18,25 if we want four group then we got group 1: 2,4,5 group 2: 7,12 group 3: 18,25 group 4: 34

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  • How is hashCode() calculated in Java.

    - by Jothi
    What value is hashCode() method is returning in java?. i read that it is an memory reference of an object. when i print hascode value for new Integer(1), its 1. for String(a) - 97. so i confused. is it ascii or what type of value is?

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  • Cooking Units in Java

    - by gregm
    Are there any open source libraries for representing cooking units such as Teaspoon and tablespoon in Java? I have only found JSR-275 (http://jscience.org/jsr-275/) which is great but doesn't know about cooking units.

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  • Provisioning api using java

    - by user268515
    Hi i tried to retrieve all users from the domain using provisioning api & 2-legged OAuth in java program but it returns unknown authorization header........... when i started to search about it i got the scope as https://apps-apis.google.com/a/feeds/user/#readonly. i dont what what #readonly refers please explain it .... Regards Sharun

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  • Java declarations (ordering)

    - by incrediman
    In Java, what's generally the most accepted way to organize a class in terms of the order in which declared data members and methods should be listed in the class file, keeping in mind the following and anything else you can think of for each one: its visibility whether it's a constructor, method, or member if it's a method, does it overload, or override other method(s)?

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  • Java, dBase microsoft driver and deleted flag

    - by blow
    Hi, im connecting to dBase from java with this string: String url="jdbc:odbc:DRIVER={Microsoft dBase Driver (*.dbf)};DBQ="+databasePath+";DefaultDir="+databasePath+";DriverId=533;FIL=dBase IV;MaxBufferSize=2048;PageTimeout=5;"; Work fine, but with a SELECT statement i can retrieve only record that are not "deleted". In dBase database deletet record are only flagged deleted, so i want retrive deleted record too. Is this possibile? Thank.

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  • java double[][] - display as image

    - by joe_shmoe
    Hi all, just wondering if there is a simple way in java to display the contents of say 16x16 array of doubles [0..1] as a greyscale image (ala matlab)? using an unfamiliar matrix library, so I'd like to check that I'm on the right track. don't really care if it is slow or ugly, or if it requires external library - it's just there for a quick look, so as long as it works, I'm fine.

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  • Java applet for Tower of Hanoi

    - by Naren
    I am planning to write a Java applet for Tower of Hanoi similar to link( http://www.mazeworks.com/hanoi/index.htm ) Can you suggest how should I start and proceed. And, btw, does it require multi threading? And also, major part of my doubt is to make a disc being clickable and being able to drag and drop the disc on a tower. detect a tower (if a disc is being dragged using mouse)

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