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Closed 12 years ago.
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How can I convert my java program to an .exe file ?
I'd like to create a Windows .exe for a Java program. Previously, I've used JEXECreator for this, but it's not entirely satisfactory because:
The executable sometimes works on the machine on which it was created but not on others.
The program is commercial; if you use the trial version, it adds a nag screen to your application.
I don't need the generated .exe to work if Java is not installed on the target machine (in fact, I think this is impossible).
Any recommendations?
Launch4j perhaps? Can't say I've used it myself, but it sounds like what you're after.
Most of the programs that convert java applications to .exe files are just wrappers around the program, and the end user will still need the JRE installed to run it. As far as I know there aren't any converters that will make it a native executable from bytecode (There have been attempts, but if any turned out successful you would hear of them by now).
As for wrappers, the best ones i've used (as previously suggested) are:
JSmooth
and
Launch4j
best of luck!
If you really want an exe Excelsior JET is a professional level product that compiles to native code:
http://www.excelsior-usa.com/jet.html
You can also look at JSMooth:
http://jsmooth.sourceforge.net/
And if your application is compatible with its compatible with AWT/Apache classpath then GCJ compiles to native exe.
I used exe4j to package all java jars into one final .exe file, which user can use it as normal windows application.
You could try exe4j. This is effectively what we use through its cousin install4j.
The Java Service Wrapper might help you, depending on your requirements.
If Java is installed on the target machine, there is no need to create an .exe file. A .jar file should be sufficient.
Related
This question already has answers here:
Closed 12 years ago.
Possible Duplicate:
How can I convert my java program to an .exe file ?
I'd like to create a Windows .exe for a Java program. Previously, I've used JEXECreator for this, but it's not entirely satisfactory because:
The executable sometimes works on the machine on which it was created but not on others.
The program is commercial; if you use the trial version, it adds a nag screen to your application.
I don't need the generated .exe to work if Java is not installed on the target machine (in fact, I think this is impossible).
Any recommendations?
Launch4j perhaps? Can't say I've used it myself, but it sounds like what you're after.
Most of the programs that convert java applications to .exe files are just wrappers around the program, and the end user will still need the JRE installed to run it. As far as I know there aren't any converters that will make it a native executable from bytecode (There have been attempts, but if any turned out successful you would hear of them by now).
As for wrappers, the best ones i've used (as previously suggested) are:
JSmooth
and
Launch4j
best of luck!
If you really want an exe Excelsior JET is a professional level product that compiles to native code:
http://www.excelsior-usa.com/jet.html
You can also look at JSMooth:
http://jsmooth.sourceforge.net/
And if your application is compatible with its compatible with AWT/Apache classpath then GCJ compiles to native exe.
I used exe4j to package all java jars into one final .exe file, which user can use it as normal windows application.
You could try exe4j. This is effectively what we use through its cousin install4j.
The Java Service Wrapper might help you, depending on your requirements.
If Java is installed on the target machine, there is no need to create an .exe file. A .jar file should be sufficient.
New to java programs so apologies for the noob question. I have written a java program that I run using "java myprog" command in a terminal window. I want to give this program to friend but not sure what that person needs as a minimum to run the program. Can the code be compiled to run completely independently of any java installation my friend may or may not have? Will the other person need to recompile the code?
Option 1
You can give them the compiled output (the .class) file.
They need a version of the JRE (but not the JDK that developers need to compile) that is compatible with the version you used to compile your code. The simplest way is just to match versions. For example, if you're using J2SE 7, then get JRE 7 for your friend.
With this your friend should be able to type java myprog and get the same results as you. If you want your friend to run the program from the command line the same way you do, then this is probably the simplest approach.
So, if on both your machine and your friend's machine you type:
java -version
...and you get the same major version, then you're probably in the right ballpark.
Option 2
You can also create an executable .jar file if you want something your friend can just double-click, but they'll still need a version of the JRE installed, and creating executable JARs can be a bit difficult if you're new to the language. They take some learning and trial-and-error time. This is definitely a more complex approach than option #1.
Option 3
There are compilers that will convert your java program into native code (an .exe file in Windows), but you'll need to know what OS your friend is running, and make sure you're compiling for your friend's OS.
One example of these tools that I heard about years ago is Excelsior JET (though I'm not endorsing it as a tool - just saying that they exist).
This is definitely the most advanced/most difficult of options, and includes even more trial-and-error than option #2, but if you're talking about a really simple program with a single file, then it might be very straightforward.
Of course, Excelsior JET wasn't free last time I checked.
I've written an entire article on this very subject:
Convert Java to EXE - Why, When, When Not, and How
You want to create an executable .jar file. Provided that your friend has Java installed, he can run the program by simply double clicking on the file.
Java programs are usually compiled into Java bytecode - not to a native executable. Once compiled, the resulting class files will be executable on any JVM that is recent enough, regardless of the underlying hardware platform or operating system. In order to have a JVM, however, your friend would typically need to have an appropriate Java Runtime Environment (JRE) installed.
Alternatively, there are ways to distribute a program along with a JRE, but I believe that this approach is not trivial. There are programs, such as launch4j, that can automate the process somewhat, if you want to go that way.
The options given above suggesting giving the .class file and using java myprog may not work if the friend is not located in the directory where myprog.class has been placed, as the class path may need to be specified. So the friend may have to use java -cp path_to_myprog myprog
I have a problem with getting the Application to run on other People's machines.
I have tested a self contained and the normal .jar file.
When i pass them to a friend of mine who has java installed, when he opens the .jar file, there is an Error: "Java Exception has occured".
When i run both the .jar and the .exe off the self contained one, both do work on my PC.
So the actual question is:
Why isn't it working just like that?
Can't i just run JavaFX applications without installing the whole JDK?
Thanks for your help :)
Since Java 7 there exists the "javafxpackager", renamed to "javapackager" on Java 8 which uses some xml-configuration for generating your wanted "Installer"/distribution-package.
As this does not fit some peoples need, there exists a way to use maven:
the javafx-maven-plugin, you can find some examples about the usage of that plugin as linked.
Disclaimer: I'm the maintainer of the javafx-maven-plugin.
this is a kind of weird non programming (but java related) question.
I created a java program (game) using just normal java, and no libraries.
In ordor to double click/open it, you need to have java SDK/JDK (I don't know which) installed.
I tested this multiple times, and in order for my PC and Mac to launch it, you need to install it.
is there anyway to get around this? I know Minecraft doesn't force you to download the JDK.
Here's the link to source code of my game if your interested (no, it is not a virus): http://www.filedropper.com/daplatform
Thanks, Jake
Here's the link to the download of the JDK (Its next to the giant Netbeans download): http://www.oracle.com/technetwork/java/javase/downloads/index.html
What you can do is you can wrap both your program and the JRE required to run it into a single executable for the target platform.
For example your windows installer would include both a windows JRE and your program itself.
Launch4j http://launch4j.sourceforge.net/ lets you wrap a Java program into a windows executable and gives you options about how to handle the JRE, including bundling it.
This question already has answers here:
How can I convert my Java program to an .exe file?
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Closed 3 years ago.
I'm wondering how to package a Java application into a native binary for Windows, Linux and Mac OS X.
I know Minecraft does this, but I can't figure out how. This is what'd I'd like to do:
From NetBeans (preferably) or Eclipse, build the three binaries automatically.
Include native libraries for OpenGL et. all.
Obfuscate my code if possible.
If there's some way to mimic the Minecraft auto-updater feature, that'd be totally awesome.
So, are there any tools available to do this for you, or do I need to write a large bulk of XML to accomplish this?
To make a native binary for Windows, you would use a tool like Launch4J. On OSX you could use JarBundler. Minecraft simply distributes the jar file for Linux. I'm not aware of a native binary packager for Linux.
You could also compile your Java code via GCJ but that's probably not what you want, as there are limitations and compatibility concerns there. The native bundlers like Launch4j and JarBundler simply wrap your jar file and use a real JRE to execute it.
As for integrating with NetBeans or Eclipse, you'll probably have to write your own ant build file, especially since the solution varies from one platform to the next.
If you are using Java 9, you can also use Java 9 Modularization & jlink to ship a zero-dependency native app.
There is also maven-jlink-plugin that could help here.
Take a look at GCJBuilder plugin for eclipse. Not sure if it supports cross compilation as the command GCJ compiler does.
If the app. has a GUI and can be distributed from a web site, look into Java Web Start. JWS is supplied by Oracle, and provides auto-update amongst many other features.
Note that JWS uses Jar files, so no conversion is necessary.
I've used JSMooth for this in the past: http://jsmooth.sourceforge.net/
As mentioned before, this wrapper just looks for a real JRE to run it - it does not come with a bundled JRE.