Compiling a java program into an executable

Question

Possible Duplicate    How do I create an  exe for a Java program        I ve just made a simple program with Eclipse and I want to compile it into an executable  but simply can t seem to find out how to do it

User · Answer

I would use GCJ  GNU Compiler for Java  in your situation  It s an AOT  ahead of time  compiler for Java  much like GCC is for C  Instead of interpreting code  or generating intermediate java code to be run at a later time by the Java VM  it generates machine code   GCJ is available on almost any Linux system through its respective package manager  if available   After installation  the GCJ compiler should be added to the path so that it can be invoked through the terminal  If you re using Windows  you can download and install GCJ through Cygwin or MinGW   I would strongly recommend  however  that you rewrite your source for another language that is meant to be compiled  such as C    Java is meant to be a portable  interpreted language  Compiling it to machine code is completely against what the language was developed for

User · Answer

There is a small handful of programs that do that    TowerJ is one that comes to mind  I ll let you Google for it  but it costs significant money   The most useful reference for this topic I found is at  http   mindprod com jgloss nativecompiler html  it mentions a few other products  and alternatives to achieve the same purpose

User · Answer

The thing you can do is create a  bat that will execute the  jar file created  checking if there is a JRE present   From Mitch useful link  source   java -classpath myprogram jar de vogella eclipse ide first MyFirstClass   This can be used into your batch

User · Answer

I usually use a bat script for that  Here s what I typically use    echo off set d   dp0 java -Xmx400m -cp   d myapp jar  d libs mylib jar  my main Class      The   dp0 extract the directory where the  bat is located  This allows the bat to find the locations of the jars without requiring any special environment variables nor the setting of the PATH variable   EDIT  Added quotes to the classpath  Otherwise  as Joey said   fun things can happen with spaces

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I use launch4j  ANT Command    lt target name  jar  depends  compile  buildDLLs  copy  gt       lt jar basedir    java bin dir   destfile    build dir  Project jar  manifest  META-INF MANIFEST MF    gt   lt  target gt    lt target name  exe  depends  jar  gt       lt exec executable  cmd  dir    launch4j home   gt           lt arg line   c launch4jc exe   basedir    launch4j dir  L4J ProjectConfig xml    gt       lt  exec gt   lt  target gt

User · Answer

We have found Jsmooth to be well-working and easily scriptable with ant under Linux   You may want to use one-jar  also easily scriptable with ant under Linux  to collect a multifile application in a single jar first   We primarily needed the easy deployment of the EXE combined with the  hey  you need Java version X  go here to download  facilities    but what you most likely need is the  Runnable jar     Executable jar  facility in standard Java

User · Answer

You can convert  jar file to  exe on these ways    source  viralpatel net   1- JSmooth  exe wrapper  JSmooth is a Java Executable Wrapper  It creates native Windows launchers  standard  exe  for your java applications  It makes java deployment much smoother and user-friendly  as it is able to find any installed Java VM by itself  When no VM is available  the wrapper can automatically download and install a suitable JVM  or simply display a message or redirect the user to a web site   JSmooth provides a variety of wrappers for your java application  each of them having their own behaviour  Choose your flavour   Download  http   jsmooth sourceforge net   2- JarToExe 1 8 Jar2Exe is a tool to convert jar files into exe files  Following are the main features as describe in their website    Can generate    Console        Windows GUI        Windows Service    three types of exe files  Generated exe files can add program icons and version information  Generated exe files can encrypt and protect java programs  no temporary files will be generated when program runs  Generated exe files provide system tray icon support  Generated exe files provide record system event log support  Generated windows service exe files are able to install uninstall itself  and support service pause continue  New release of x64 version  can create 64 bits executives   May 18  2008  Both wizard mode and command line mode supported   May 18  2008    Download  http   www brothersoft com jartoexe-75019 html  3- Executor Package your Java application as a jar  and Executor will turn the jar into a Windows exe file  indistinguishable from a native application  Simply double-clicking the exe file will invoke the Java Runtime Environment and launch your application   Download  http   mpowers net executor   EDIT  The above link is broken  but here is the page  with working download  from the Internet Archive  http   web archive org web 20090316092154 http   mpowers net executor   4- Advanced Installer Advanced Installer lets you create Windows MSI installs in minutes  This also has Windows Vista support and also helps to create MSI packages in other languages  Download  http   www advancedinstaller com  Let me know other tools that you have used to convert JAR to EXE

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