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• eval equialiser in java programming

  - by karthi-27

  Hi all, I am new bee to java .I am having a string like the following, str="4*5"; Now I have to get the result as 20 by using the str. I know in some other languages eval function will do this.I want to know the method in java.

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• Java code translation of Python array-splitting code

  - by techventure

  Can someone please give the Java equivalent of the below python (which slices a given array into given parts) which was originally written by ChristopheD here: def split_list(alist, wanted_parts=1): length = len(alist) return [ alist[i*length // wanted_parts: (i+1)*length // wanted_parts] for i in range(wanted_parts) ] I don't know any python but can really use the above code in my Java app. Thanks

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• How do I escape a string in Java?

  - by Marius

  I'm reading a sourcefile in Java, but when I print it (sysout), the escaped characters are no longer escaped. How can I escape characters like \n and \t in a string in Java?

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• how can I kill a Linux process in java with SIGKILL Process.destroy() does SIGTERM

  - by ekeren

  In Linux when I run the destroy function on java.lang.Process object (Which is true typed java.lang.UNIXProcess ) it sends a SIGTERM signal to process, is there a way to kill it with SIGKILL?

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• Java equivalent of C# @

  - by Simon Rigby

  Hi all, Quick question. Is there an equivalent of @ as applied to strings in Java: For example I can do @"c:\afolder\afile" in C# and have it ignore the escape characters when processing instead of having to do "c:\afolder\aFile". Is there a Java equivalent? hmmm: stackoverflow is escaping on me .. lol. The second example should read: c:(double-backslash)afolder(double-backslash)aFile

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• How do I connect to MSSQL 2008 database in Java with JDBC

  - by shuxer

  I have MSSQL 2008 installed on my local PC, and my Java application needs to connect to a MSSQL database. I am a new to MSSQL and I would like get some help on creating user login for my Java application and getting connection via JDBC. So far I tried to create a user login for my app and used following connection string, but I doesn't work at all. Any help and hint will be appreciated. jdbc:jtds:sqlserver://127.0.0.1:1433/dotcms username="shuxer" password="itarator"

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• How can I embed Weblogic server in java ?

  - by Xinus

  I am searching any way for embedding Weblogic server in Java , I know its possible because we have maven plugins for Weblogic which embeds Weblogic in maven, But googling for it did'nt gave me useful output, Does anybody know how can we embed wemlogic in java program ?

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• Java RSASSA-PKCS1 howto

  - by Jin Kwon

  Can anybody tell me how to generate signature for "RSASSA-PKCS1-v1.5" in Java? I, actually, want to know how do I with java.security.Signature class. Do I have to use any 3rd party libraries?

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• a good smart phone for java development?

  - by pstanton

  Hi all, I'd like to do some development of smart phone apps and my native programming language is java. The first application I'd like to write will need to be able to (attempt to) connect to a network (LAN or WiFi) automatically in the background (on a schedule). would an android phone be the best path or are there competitive purer java options?

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• Java and C++ on Stack Unwinding issue

  - by sahs-i-muhterem

  As far as I know, in case of an uncaught exception, C++ destroys the local variables immediately, Java releases the references and leaves the rest for the garbage collector. Is this right? What exactly is the difference between Java and C++ on this issue? in other words, which of these two languages is considered better in terms of stack unwinding issue? :)

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• Webkit browser in a Java app

  - by just_a_dude

  Hi all, I was wondering if there was a Java swing component that uses webkit. Is it possible to create a webkit browser in Java - must I use JavaFX ?

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• Examples of good JPA Java Desktop Application

  - by Yatendra Goel

  I have learnt JPA recently. Now I want to use it in one of my commercial product. But before proceeding, I want to see some example JPA Java Desktop applications so as to have a better understanding of using JPA in desktop applications. I have searched google for this but all I found was tutorials on JPA with examples of entities. I need some good real java desktop applications which have used JPA.

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• Programatically setting the dock:name Java Mac OS X JVM property

  - by kpsullivan

  Is there a programatic alternative to setting the dock:name Java Mac OS X property by doing java -Xdock:name="My App Name" -jar myapp.jar , or is this the only way to set the dock:name property?

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• JODA time in Java Appengine

  - by aloo

  Has anyone gotten JODA time classes to work on Google Appengine? I'm using 1.3.4 of the java sdk and I get the following error when trying: java.lang.NoClassDefFoundError: com/google/appengine/repackaged/org/joda/time/DateTimeZone I've imported it as well: import com.google.appengine.repackaged.org.joda.time.DateTime;

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• Does Java support default parameter values?

  - by gnavi

  I came across some Java code that had the following structure: public MyParameterizedFunction(String param1, int param2) { this(param1, param2, false); } public MyParameterizedFunction(String param1, int param2, boolean param3) { //use all three parameters here } I know that in C++ I can assign a parameter a default value. For example: void MyParameterizedFunction(String param1, int param2, bool param3=false); Does Java support this kind of syntax? Are there any reasons why this two step syntax is preferable?

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• Who Uses Real Time Java?

  - by Jon

  I noticed that Real Time Java 2.2 was released back in September, seems to have come a long way from when I last looked at it. However, does anybody know of any real world uses, commercial or academic to date? http://java.sun.com/javase/technologies/realtime/index.jsp

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• Converting WCF web service to Java

  - by Vitor Py

  I currently have a web service built on WCF. It's still in its infancy, so, major changes are still possible. I've been thinking on porting it from WCF to a Java-based solution since I'd like to have a Linux-based backend. What would be the best way to accomplish this "conversion"? Any advantages WCF may have that Java lacks?

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• How to fill HTTP forms through java?

  - by Yatendra Goel

  I want to fill a text field of a HTTP form through java and then want to click on the submit button through java so as to get the page source of the document returned after submitting the form. I can do this by sending HTTP request directly but I don't to this in this way. Very Urgent. You can also paste the code or demo code to explain in a better way.

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• Java - Console-like web applet.

  - by Dean

  Hey, I've been developing an application in the windows console with Java, and want to put it online in all of its console-graphics-glory. Is there a simple web applet API I can use to port my app over? I'm just using basic System.out and System.in functionality, but I'm happy to rebuild my I/O wrappers. I think something along these lines would be a great asset to any beginning Java developers who want to put their work online.

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• Detecting java disabled in explorer

  - by Sonia Fabre

  Hi, Is there a way to detect if java is disabled in Explorer? navigator.javaEnabled() //This always returns true even if java is not installed

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• How can I access a byte array as shorts in Java

  - by shellback3

  I have a an array of byte, size n, that really represents an array of short of size n/2. Before I write the array to a disk file I need to adjust the values by adding bias values stored in another array of short. In C++ I would just assign the address of the byte array to a pointer for a short array with a cast to short and use pointer arithmetic or use a union. How may this be done in Java - I'm very new to Java BTW.

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• Is there a size restriction on signatures in Java (java.security)?

  - by Gregory Porter

  I am trying to sign a token object using SHA1. I am using bouncycastle as the security provider. Whenever the program tries to sign something it gives me this error. java.security.SignatureException: java.lang.IllegalArgumentException: input data too large. What is the maximum size for signing something? Do you have any suggestions about how I can sign this object?

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• Java Can't Find File when Running through Eclipse

  - by derekerdmann

  When I run a Java application that should be reading from a file in Eclipse, I get a java.io.FileNotFoundException, even though the file is in the correct directory. I can compile and run the application from the command line just fine; the problem only occurs in Eclipse, with more than one project and application. Is there a setting I need to change in the run configurations or build paths to get it to find the file correctly?

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• Writing async service using cxf with java first approach

  - by user350712

  Hello I need to create a async webservice using cxf with java first approach. But i am unable to find any web resource/ website which tells me how to do this? Can you please tell how can I write a async webservice using CXF with java first approach? Thanks Shekhar

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• java background task

  - by markovuksanovic

  I was wondering which would be the most efficient approach to implement some kind of background task in java (I guess that would be some kind of nonblocking Threads). To be more precise - I have some java code and then at some point I need to execute a long running operation. What I would like to do is to execute that operation in the background so that the rest of the program can continue executing and when that task is completed just update some specific object which. This change would be then detected by other components.

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