What will be the java equivalant code for the following code?

I am using JNA to call methods of user32.dll and kernel32.dll. It is working fine as of now. I got stuck in some issue, and I got to know that I have to call this method. void SendCommandToConsole( char* Cmd ) DWORD dwCall = 0x004C1030; __asm { push Cmd; push 0; call dwCall; } SendCommandToConsole ( "rp 2000" ); But I am not even g...

LD_PRELOAD variable in JNI code

My java code calls via JNI some C++ code from a shared library (eg libtest.so). The code is instrumented with some special debugging symbols that exist it libdebug.so. When I call LD_PRELOAD=/usr/lib/libdebug.so java com.test.myMain the execution stops with Exception in thread "main" java.lang.UnsatisfiedLinkError because symbols from lib...

Error: Could not find or load main class

I am having trouble compiling and running my Java code, intended to allow me to interface Java with a shared object for Vensim, a simulation modeling package. The following code compiles without error: javac -d . -cp ./apache-log4j-1.2.16/log4j-1.2.16.jar:. /vensim.jar SpatialModel.java VensimHelper.java VensimException.java VensimContextR...

Automatically convert Scala code to Java code

I have an app written in Scala and some of my team members want a Java version of it. It is a demo app to use another API written in Scala, and they want a Java version of the app to be able to use the API from Java. However, the app is somewhat large and I don't want to manually rewerite in Java (and they don't want to learn Scala). Is t...

very wierd! eclipse does not find java on my computer?

Hello I am very new and I have a problem that has been bothering me all day today. I have been working on a ROS (robotic OS) and I am using java for part of it. The java code itself works fine, but I just updated my java to the latest java and my whole entire eclipse can not find java... even programs like minecraft do not work. I did che...

Java 7 update 15 issue

Hi, today i updated java to the latest version and although it is detected on my laptop through the java test page, when i try to launch the java control panel or java.exe, command prompt opens with loads of code then closes quickly. I uninstalled then reinstalled yet same issue. Is this something to fret about or should i investigate fur...

Launching CYGWIN-built executable from Java on Windows 7 fails with "error while loading shared libraries: ?: No such file or directory"

The code in question has worked in more or less the exact same configuration on earlier releases of Windows, however, it is not known to have run on Windows 7 YET! That's what I need to solve now. Briefly, some C code performs some configuration and security checks before launching a java program, passing some data that would be neigh-int...

PDF/A1A (XMP Tagged PDF) with XML datasource (JaserReports/iText)

Hello, I'm trying to run the code underneath, but it fails with the error: Code: Exception in thread "main" java.lang.ClassCastException: com.itextpdf.text.Document cannot be cast to org.w3c.dom.Document Here's the actual code. It seems that I'm combining two different Document classes, but I don't know how to solve it. If my co...

Java regex matcher.find fails occasionally

I have regexp which parses all names of used freemarker macros in template (for example from <@macroName /> I need only macroName ). Templates are usually quite large (round 30 thousand characters). Java code with regex looks like: Pattern pattern = Pattern.compile(".*?<@(.*?)[ /].*?", Pattern.DOTALL | Pattern.UNIX_LINES); Matc...

Can't run Java example for Selenium / WebDriver

Having a problem getting going with Selenium on Java. I'm trying to follow the example on this page: http://code.google.com/p/selenium/wiki/G ettingStarted I'm typing this: $ javac -cp . -cp ~/Downloads/selenium-2.20.0/selenium-jav a-2.20.0-srcs.jar -cp ~/Downloads/selenium-2.20.0/selenium-jav a-2.20.0.jar -g Example.java And getting this:...

How to compile java code from a .net application?

I am creating a source code editor for Java using C# in .NET 4. I need to know how I can interact with the jre to compile the java code on my application editor interface from .net. I wish to display the user any errors on the code as well. Any ideas on how to accomplish this will be greatly appreciated.

Platform independent socket communication between Java and C++

Hello forum, I would like to build a simple Java server that can receive TCP messages from different endpoints that use Java, C++ or any other language. As far as I know the following message properties are critical: byte order, encoding and number representation. However, I don't know which Java Streams and Writers write Java specific co...

Sending request to HttpUrlConnection: Status 405 error method not allowed

Hi , My web application is deployed on my machine . I can access thru Url and access the API's . But when I am trying to access the API thru Java code,HTTP 405 Status Error: Method not Allowed comes up. The request will be in this form: abc XYZ url : http://127.0.1.11:5555/IDXWeb/TestServic e.htm My java code is like this : package gepoc...

How to change iReport font as parameter

i have application that generate report with custom font style, like font family, color,size and style(bold,italic,underline). And i use all font-family from Windows System. I try to use parameter in .jrxml file. Like this : Code: And in the text : Code: ... ... When i preview in iReport, it log error : Code: Error filling print... Font '...

Compilation error with external Jar

I am trying to command line compile my code and I cannot get it to run properly. My project was in eclipse and i could specify the location of a jar file to include but the command line is another issue. All .java and the .jar file are in the same director. I can compile with javac -classpath opencsv-2.3.jar *.java I get the following exc...

Import java files

Hi , I'm doing my first steps in java so please be gentle ... enclosed a part of a java program . Q -1 - From where those files are imported ? ( what is their path ? ) Q -2 - Does those files are related to the java version that I have on my PC ? Code: package SensorMonitor; import java.io.*; import java.net.*; import javax.net.ssl.*; imp...

Executing specific CMD commands from Java Code

I have a .java classfile with a main method which produces a file "output.txt". I want to write a program in Java which compiles and runs it, so that the file "output.txt", produced by given Java class, is outputted to a specified folder. How can this be done? I can compile and run it, but I couldn't make something like a command in Java...

How to make structure in JNA?

I get this error when i run the code below; Exception in thread "AWT-EventQueue-0" java.lang.Error: Structure.getFieldOrder() on class javaapplication2.NewJFrame$APPBARDATA returns names ([cbSize, hWnd, jCallbackMessage, jEdge, rc, sParam]) which do not match declared field names ([]) at com.sun.jna.Structure.getFields(Structur e.java:872...

Jinfo,gc and gcutil give different values

I have a socket application where this is a listener and import a number of 3rd part library as below. Code: import java.io.*; import java.net.*; import java.util.*; import java.util.Date; import java.text.*; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.io.IOException; import java.sql.Connection; import java...

NullPointerException Error in JComboBox

I am trying this code (in Netbeans) and i always get a long list of errors (here only the first rows) Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at FootballFrame.jComboBox1ActionPerformed( FootballFrame.java:64 at FootballFrame.access$000(FootballFrame.j ava:3) at FootballFrame$1.actionPerformed(Football Frame.java...

CodeRunner 1.3.1 - Edit and run code in 10 different programming languages.. (Commercial)

CodeRunner lets you edit and run code in 10 different programming languages; it's the essential editor for any programmer. With CodeRunner, it has never been easier to write and test code, run scripts, work with algorithms, or simply experiment with a new coding or scripting language. Features: Edit and run code in AppleScript, C, C++, J...

NetBeans 7.2 - Integrated Development Environment for Java (IDE).. (Free)

NetBeans is an open source Java development environment - a complete environment covering Develop desktop, mobile and web applications with Java, PHP, C/C++, and Groovy. The full spectrum of Java development is covered including Java SE, Java FX, Java ME and Java EE. Supports Git and Subversion source code management. The web application...

java.lang.NullPointerException but object isn't null (I suppose)

My last project (and the biggest :)) is the Ping Pong game. I'm trying to implement "AI", but I can't do this because of Exception in thread "Timer-0" java.lang.NullPointerException at main.Ball$1.run(Ball.java:25) at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) I think I've written whole...

How to use Scala varargs from Java code

There are plenty of articles on calling Java varargs from Scala code, but the only thing I could find the opposite way round was this question: Using scala vararg methods in java , which doesn't have any concrete examples. I'm trying to use scala.Console from some Java code, for the reason that java.io.Console doesn't work in Eclipse, w...

How to find out server response code using java

I have a doubt on this matter. How can we identify the server response code by using java code. I mean if we got any response from server as a HTTP response , we can able to print this as string or whatever. I wanted to know how can we track if some particular request is being hit in the server using java also find out the server response...

need help, got confuse with AsyncTask

I'm new in android and i need to make AsyncTask, so my application can work on ICS. But after I read tutorials i still got confuse. Anyone, please help me to fix my code, i don't know what and where i must put in AsyncTask with my code like this. thank you Login.java package com.karismaelearning; import java.io.BufferedReader; import java...

compiling class files for Hadoop MapReduce

after having run the default wordcount example in Hadoop successfully, I created a new java file by copying the content of the wordcount example. I modified the code a little bit. Now I want to compile the new java file, create *.jar file. I do not have eclipse, as this seems to be a headache. So plain java code in vim, without any file s...

Java Server Example Errors

Getting these errors in some java code http://tutorials.jenkov.com/java-multith readed-servers/multithreaded-server.html Exception in thread "Thread-0" java.lang.RuntimeException: Cannot open port 8080 at servers.MultiThreadedServer.openServerSo cket(MultiThreadedServer.java:61) at servers.MultiThreadedServer.run(MultiThr eadedServer.java:22...

Migrating Java TreeMap code to Scala?

I am migrating my Java code base to pure Scala and I am stuck on this one piece of code . I have an implementation of an IntervalMap i.e. a data structures that let's you efficiently map ranges [from,to] to values where the set delete and get operations are all O(log n) (slightly different from an IntervalTree or a SegmentTree). This...

Alternative to Java's Observable class?

I'm coming to Java from the C# world where the Observer pattern is implemented as a first-class language construct with the event keyword. I see that Java's had the Observable class since the early days, but it clearly has implementation issues and doesn't seem to be widely used. Thus far I've just been rolling-my-own implementation of...

Untracable AsyncTask error

I have a live app that uses AsyncTask in several activities, and I'm getting an untraceable error (below). The key line of bto.org.monitoring.birdtrack.ce.doInBack ground(Unknown Source) that is being sent to Google Play by my users (with no messages of course) isn't letting me debug this problem, so I can't find the right bit of code nev...

Typical build process of Java application

Being new to Java, I am not able to understand the complete build process from source code to hardware specific binaries. Basically I am using Eclipse for java and would like to know what all conversions takes place from source code(.java) to binary, what all files are linked using some linker, preprocessor etc etc. Shall appreciate if yo...

Is there a performance impact for using code blocks in Java?

I'm starting to play with OpenGL from Java, and I'm encountering a situation where I need to put a lot of code between many glBegin() and glEnd() calls, and would like for the code to be be auto formatted such that it is easy to see at a glance which code belongs to which glBegin/glEnd. To accomplish this, I have been using an anonymous c...

Java URL("file://") doesn't work on Windows XP

For some reason the following code doesn't work on Windows XP. new URL("file://" + tempfile.getAbsolutePath()); I'm using Java 1.6. Java(TM) SE Runtime Environment (build 1.6.0_31-b05) Java HotSpot(TM) Client VM (build 20.6-b01, mixed mode, sharing) However, the same code just works fine in OS X (Lion) and Java 1.6 java version "1.6.0_29"...

how do java frameworks relate to java platform

I can code in Java, and I'm trying to understand the wiki article on frameworks and how they relate to java. I think java = the platform and the frameworks are things like j2ee, jsp, etc. (i've never used any of those) I'm trying to see the connection here.... Also, does each framework get it's own compiler? do they all use the JVM?...

is there a way to define flags in java and run code only if those flags are defined?

c\c++ can define: #ifndef <token> /* code */ #else /* code to include if the token is defined */ #endif my question, is there a way to do it in java? (which is not defining a global static variable..) for example i want to run some code only in debug mode.. thanks!...

RSA key pairs generating using bouncy castle. Making code runnable from java program

I am using a java code that i found that generates a public and a private key via the bouncy castle library. My problem is implementing it into code runable by my android device. My code does not display the RSA keys like i programmed it to and through most of my troubleshooting i am still unable to make my code do as i ask, although i...

Java, Simulating Browser

I am writing a small java program/api to programatically login/ (do a hthp post with login credentials) to this http://web2sms.ke.airtel.com For me to post, I need parameter(key and value for the login form). When I render the form via browser, the key/name keep changing everytime to but when I fetch the page via java code below the key i...

Java Sandbox Bypass Discovered that Breaks Latest Update

-Quote- Optimism and praise followed last week’s Java critical patch update. Oracle not only patched 42 vulnerabilities in the Java browser plug-in, but also added new code-signing restrictions and new prompts warning users when applets are potentially malicious. It took less than a week, however, to deflate any good will toward Java that...

BSOD whilst browsing java folder

Hi, today I installed java 7 update 15 and I cannot open the java control panel or the java.exe file. When i click on them command prompt opens and loads of code comes up and then it closes, all very quickly. Anyway, whilst browsing the java folder in program files, screen went black and i had to restart computer. A minidump was created a...