Bakrudeen :convert Java to executable file on DOS6.22 without JVM

I'm sorry that I can't see your solution any more.
Hi,Bakrudeen
I've seen the your advice, but I can't find the KVM for >DOS6.22. Any other solution?
Thanks a lot.Dengwu

Check out this link http://gcc.gnu.org/java

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Converting .java to .exe files to run those without runtime environment

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Converting a Java application into an exe file
This question is sometimes asked many times on a single day in the comp.lang.java.* newsgroups, and I always end up asking the same question: why do you want to? Most answers fall into one of four categories, and each prompts a different course of action. Most of the time, an exe file isn't actually required.
Reason 1: Speed
"Java is interpreted, so I want to make it native and make it faster." Well, very few modern desktop VMs actually spend much time interpreting Java bytecodes these days. Everyone and their dog has a JIT (Just In Time) compiler which will compile your code into native form before running it. Smart VMs will do this only when appropriate (ie if the code is going to be run more than once, or contains loops etc), and may recompile the code on the fly if the conditions change (eg if a subclass is loaded which invalidates some inlining optimisations, or if the code is run very frequently and therefore merits more aggressive optimisations). The bottom line is that for most applications, Java running on a VM is pretty fast these days. It's usually pretty close to the speed of a natively compiled and similar C/C++ application - certainly I've seen changing compiler (or compiler options) for C/C++ make more difference to speed than going between Java running on a VM and natively compiled Java.
There are some situations where the speed difference is significant. If you're really desperate for that extra bit of performance, try evaluating one of the native compilers listed here with your particular application. Make sure you write some real benchmarks though - vague notions of "feeling faster" may well be down to preconceptions.
Remember, too, that as new VMs come out, they tend to improve performance. That means that to get the best out of your application if it's running on a VM, the user only needs to download a later VM - no action is needed on your part. If they're using your natively compiled code, you'll probably need to recompile on a later version of the native compiler, if one is available.
Reason 2: Being able to open an application by double-clicking on it
If you can ask the user to install a JRE first, executable jar files are the way to go here. They're very simple to set up and use, and it won't cost you any money. See "Jar" in the Java Glossary for further information on how to create an executable jar file.
Reason 3: Not having to distribute a jar file and the JRE
Well, in some form or other, your users will need a runtime environment. Some native code compilers even require you to have a JRE installed as well! Chances are you're not going to be able to create a much smaller download, if that's the worry. However, there are other options here which make it easy to install your application. There's Java Web Start which also includes automatic upgrading of your software, but which will impose some restrictions (a bit like an applet, but slightly less restrictive) unless you sign your application. Alternatively, there are quite a few installers available, some of which are free (or free for personal use). See Installer in the Java Glossary for a list of some of them.
Reason 4: Intellectual property protection
Java byte-code can be decompiled pretty easily, and even obfuscators can only do so much. Here, native compilers really do make a difference. Obviously they won't make your code totally impossible to understand, but it'll be very difficult to get back to Java sources which could be modified and recompiled. The only further question to ask at this stage is whether the downsides of native compilation (eg it being a less-well-used (and therefore likely to be less solid) platform, being expensive etc) are worth the upside of the added protection. In some cases the answer will be yes, in some cases the answer will be no.
What next?
If, after reading through the above, you still want to try a native compiler, you can usually evaluate them before buying them. (Some are free, of course.) There's a list on Marco Schmidt's web-site, along with another view of the pros and cons.
I go the above article in : http://www.yoda.arachsys.com/java/javaexe.html

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Ant tools: converter java card - class file not belonging to the package!

Hi
I have another problem with converter. Could you help me please again if you have the time?
I have created a directory when I save the class files generated by javac. After That , I use convert in this way:
<convert
JCA="true"
EXP="true"
CAP="true"
packagename="testUn/classes/testUn"
packageaid="0x01:0x01:0x01:0x01:0x01:0x01:0x01:0x01:0x02:0x00"
majorminorversion="1.0"
verbose = "true">
<AppletNameAID
appletname="testUn.classes.testUn.PorteAppUn"
aid="0x01:0x01:0x01:0x01:0x01:0x01:0x01:0x01:0x02:0x00:0x00"/>
<classpath refid="classpath"/>
</convert>
Here is the answer of the computer:
[echo] Generation of the CAP,JCA and EXP files...
[convert] Java Card Ant Tasks, Version 1.0
[convert] Copyright 2005 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.
[convert] Note: Usage of Java Card Ant Tasks is optional. Java Card Ant Tasks are not supported by Sun Microsystems, Inc.
[convert] Java Card 2.2.2 Class File Converter, Version 1.3
[convert] Copyright 2005 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.
[convert] parsing /home/ehoudart/app-manager/VersionZero/src/testUn/classes/testUn/PorteAppUn.class
[convert] converting testUn.PorteAppUn
[*convert] error: class PorteAppUn does not belong to package testUn.classes.testUn.*
[convert] conversion completed with 1 errors and 0 warnings.
I do not understand why this unique applet class file does not belong to its own package. Is someone an idea?
Thanks very much in advance for your answer.

Here is a complete example build.xml (I think I have posted this before).
<?xml version="1.0" encoding="UTF-8" ?>
<project default="convert" name="javacard-starter">

<property name="target.classes" location="${basedir}/target/classes" />
<property name="target.javacard" location="${basedir}/target/javacard" />
<property name="source.java" location="${basedir}/src/main/java" />

<property name="javacard.libs" location="${basedir}/lib" />

<property name="javacard.ant-task" location="${basedir}/lib" />

<property name="javacard.export" location="${basedir}/src/main/export" />
<property name="verbose" value="true" />
<property name="noverify" value="false" />

<path id="classpath">
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      <include name="*.jar" />
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      <include name="*.jar" />
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</path>

<path id="export" description="set the export file path">
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      <include name="**/*.exp" />
    </fileset>
    <pathelement path="${javacard.export}" />
    <pathelement path="${target.classes}" />
    <pathelement path="${target.javacard}" />
</path>

<taskdef name="capgen" classname="com.sun.javacard.ant.tasks.CapgenTask" classpathref="classpath" />
<taskdef name="deploycap" classname="com.sun.javacard.ant.tasks.DeployCapTask" classpathref="classpath" />
<taskdef name="convert" classname="com.sun.javacard.ant.tasks.ConverterTask" classpathref="classpath" />
<taskdef name="verifyexport" classname="com.sun.javacard.ant.tasks.VerifyExpTask" classpathref="classpath" />
<taskdef name="verifycap" classname="com.sun.javacard.ant.tasks.VerifyCapTask" classpathref="classpath" />
<taskdef name="verifyrevision" classname="com.sun.javacard.ant.tasks.VerifyRevTask" classpathref="classpath" />
<typedef name="appletnameaid" classname="com.sun.javacard.ant.types.AppletNameAID" classpathref="classpath" />
<typedef name="jcainputfile" classname="com.sun.javacard.ant.types.JCAInputFile" classpathref="classpath" />
<target name="init">
    <mkdir dir="${target.classes}" />
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</target>
<target name="clean">
    <delete dir="${target.classes}" />
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    <delete dir="${javacard.eeprom}" />
</target>
<target name="compile" depends="init" description="Compile source code to class files">
    
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      <classpath refid="classpath" />
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</target>
<target name="convert" depends="compile" description="Convert class files to cap files">
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               <exportpath refid="export" />
               <classpath refid="classpath" />
          </convert>
</target>
<target name="copy-debug">
    <mkdir dir="${target.debug}" />
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      <fileset dir="${target.classes}" includes="**/*.exp" />
      <fileset dir="${target.classes}" includes="**/*.jca" />
    </copy>
</target>
<target name="all" depends="clean, convert" />
</project>

Photoshop .psd files converted to Unix Executable files

I'm an illustrator and I store my art on CDs and DVDs. After a period of time my files are converted from Photoshop .psd files to Unix Executable files and I can't open them. What can I do to get my work back??? -and keep this from happening in the future. Why does it do this????
Thanks for any help.

The file sizes range from 22.2 MB to 67.9 MB.
Size isn't the issue then. Linc was asking that question because we see that with other file types. Older fonts in particular, which have all of their data in the resource fork. If that gets stripped, you end up with a zero byte file.
Does that mean I'll have to go through the Adobe authorization process for Photoshop again?
If the version of Photoshop you're currently using is already activated, then no. Either way, it has nothing to do with .psd files showing as UNIX executables.
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I thought I was home free when the icon changed to a thumbnail picture of the illustration, but PS refuses to open it saying it is not a Photoshop file. ???
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On a side note, Apple added Uniform Type Identifiers to OS X to keep things separate. A big problem in Windows is that multiple apps may use the same file extension. EPS is a big one in printing. So you have Photoshop, Illustrator, Freehand, Quark and others all using .eps for Encapsulated PostScript files. However, Windows can only associate one application to any given extension. So if Illustrator happens to be the one tagged to .eps files, it will try to open any file ending in .eps, no matter what program actually created it. OS X keeps them separate with Uniform Type Identifiers. So even though multiple files may have .eps file extensions, the extra metadata keeps track of what program it actually belongs to.
This is what is part of the LaunchServices database, and was why it was my first suggestion. If that database is wonky, you'll see weird things like this. Have you tried clearing it yet?
The files are fine when newly burned to CD. It is only months, or years, later that they become Unix Executable Files. This has happened to just about all of my CD backups and it's frustrating to think that CD backup doesn't work across newer OSs and Photoshop upgrades. I suspect that may be the problem, but it just shouldn't happen.
That shouldn't make a difference. I've got a bunch of very old files created in Photoshop back from OS 8 on CD. No file extensions, as nothing did at the time. Just Type and Creator codes. They all open fine in PS CS5.5 in Snow Leopard, though the native Photoshop files do need to have a .psd extension added.

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^
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1 error, 1 warning
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Hello, all. I am fairly new to Java and have a question. I know that Java is an interpreted language, and all files are run throught the interpretor as they run. Is there a way to create an executable file (i.e. .exe in Windows) to run a Java app? I am interested in application programming and I have dabbled in C++ and VB, and with them it is easy to create executables. Can this be done in Java? Any help with this would be great. Thanks a lot, guys!
James McConnell
Your Resident Musician

Hello, all. I am fairly new to Java and have a
question. I know that Java is an interpreted
language, and all files are run throught the
interpretor as they run. Is there a way to create an
executable file (i.e. .exe in Windows) to run a Java
app? I am interested in application programming and I
have dabbled in C++ and VB, and with them it is easy
to create executables. Can this be done in Java? Any
help with this would be great. Thanks a lot, guys!
James McConnell
Your Resident MusicianOf course, my friend! There's a way to do it. If you download the Java IDE from this website, SunOne Community Edition version 4, you can accomplish that ( at least that's the way I've done them). This Java IDE creates a folder that is executable in Windows, it's called a JAR file (Java ARchive executable file), or run it on any operating system that is Java Enabled.
With SunOne, you can do it this way:
1) Click on File
2)Select New
3) Then select JAR Archive
4) In the wizard, follow the steps which tell you the java files that are needed to run the application (because sometimes a programs comprises more than one class)
5) Create a Manifest
If this doesn't work for you, find information about JAR Archive files on the Internet because this is the way to make executable programs in Java. Good Luck!!

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Our backup hard disc which is connected to a small network (five machines) has suddenly had all the Quark files converted to "Unix Executable File" with a scarey looking devil icon on it.
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Scary devil icon? Would it resemble one of these beasties or is it more like this one?
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Converting java files to executable files

I want to turn my written code into an executable file that can be sent to someone who does not have a compiler and can still run it. I asked my professor about it and he said that there was a program that you could download that would do this for you. Does anyone know of a program and where I can download it from?

I want to turn my written code into an executable file that can be sent to someone who does not have a compiler and can still run it.
From that the statement above I suggest you quit asking the moron, aka professor anything. So that someone who does not have a compiler!!! What !!!! That is stupid. Obviously you meant, does not have the JRE installed. And that has nothing to do with an exe for windows. You can sort of be forgiven, being a student, but this idiot should have set you straight when you asked the question. Get your money back and go somewhere else......

How to convert java class to dll file for using in Microsoft Technology(.n)

hey hemmj !!!!!!
nice replying , first of all i d like to say thanks for response me so frequently..... i like such type of guy... i d never forget ur online support.
hey buddy, i ve a problem with applet application...
i m working on java chat server build on swing applet. As it is chat server, it is divided into two parts, one is server application and other is client application. I want to run this server app on the client server and the basic thing with this site is that it is running on .net platform(Microsoft). and the other app ll running on the client machine or end user. Now the problem is that this site would run only if the server app ll be run on server. This server app ll open the socket of server, which ll listen the request of the user...... So, the requirement is to convert this java sever class file into dll file and register this dll file with the IIS server.So, It run and stop with the IIS server.
I ve already search the way to convert the java class file into dll file. This is possible in such way........... below code is for the java class file...
import java.net.*;
import java.io.*;
import java.util.*;
public class chatServer
public static void main(String args[]) throws Exception
ServerSocket sersoc=new ServerSocket(1234);// Any port number above 1000 should do
// as most ports below 1000 are used by system
Vector socvec=new Vector();
String data="";int i,j=0;
BufferedReader in;
//System.out.println("Listening of port " + sersoc.getLocalPort());
//System.out.println("Waiting for connections...");
while(true)
Socket soc=sersoc.accept();
socvec.addElement(soc);
chatServerReadThread csrt=new chatServerReadThread(socvec, soc);
in=new BufferedReader(new InputStreamReader(soc.getInputStream()));
PrintStream out=new PrintStream(soc.getOutputStream());
out.println("Connected to chat server");
out.flush();
data= in.readLine();
for(i=0;i<socvec.size();i++)
soc=(Socket)socvec.elementAt(i);
out=new PrintStream(soc.getOutputStream());
out.println(data + " connected");
out.flush();
//System.out.println(data + " connected");
csrt.start(); // error is comming from here..... plz help me.
class chatServerReadThread extends Thread
Vector socvec;
PrintStream out;
chatServerReadThread(Vector socvec, Socket soc)
this.socvec=socvec;
try
out=new PrintStream(soc.getOutputStream());
}catch(Exception e){}
public void run()
try
String data;
Socket soc;
BufferedReader in;
while(true)
for(int i=0;i<socvec.size();i++)
soc=(Socket)socvec.elementAt(i);
in=new BufferedReader(new InputStreamReader(soc.getInputStream()));
if(in.ready())
try
data=in.readLine();
if(data.charAt(0) == ']')
data = in.readLine() + " exited";
//System.out.println(data);
socvec.removeElement(soc);
for(int e=0;e<socvec.size();e++)
soc=(Socket)socvec.elementAt(e);
out=new PrintStream(soc.getOutputStream());
out.println(data);
out.flush();
else
for(int e=0;e<socvec.size();e++)
soc=(Socket)socvec.elementAt(e);
out=new PrintStream(soc.getOutputStream());
out.println(data);
out.flush();
}catch(Exception e){socvec.removeElement(soc);}
}catch(Exception e){e.printStackTrace();}
first i ve made the jar file of this class
jar cvf chatServer.jar chatServer.classafter getting the jar chatServer.jar. I ve opened the .net dos prompt and
type this command which ll make dll file automatically....
> jbimp /t:library chatServer.jar
And you'll see the following output:
Microsoft (R) Java-language bytecode to MSIL converter version 1.1.4322.0
for Microsoft (R) .NET Framework version 1.1.4322
Copyright (C) Microsoft Corp 2000-2002. All rights reserved.
Created chatServer.dll
I cant get the problem origin from where it is comming, when i tried to convert it into .dll file it shown an error that, it did not recongnized the method in first class
public static void chatServerReadThread.start() method
is not recognized by .net dos prompt commnad. But when i omit this method it gets created the .dll file. This start method is basically the default method of thread class that run the thread from the same class..
By vewing the code u can visulize the thing,, i ve marked the code from where the error is comming.
Plz do it as soon as possible, i ll waiting for ur reply......
I ll be really thanking u for that....
Thanx and regards
Niraj Kumar Singh

I wonder if this will work:
jbimp /t:exe chatServer.jar
Your chatServer is an application that can be started from the commandline.
A dll is a library to be used in com, com+, other executables or ....

How to convert the javasource file(*.class) to execute file(*.exe)?

How to convert the javasource file(*.class) to execute file(*.exe)?
thank you!

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Pete

Bakrudeen :convert Java to executable file on DOS6.22 without JVM

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