Can we run any java application without installing java runtime environment (J2RE, etc) ?
I think no. there is no way. because you need JRE for translating your program from java byte code to destination machine language
No it doesn't depened on platform at all. You can run your jar file on all operating systems
JAR files also need JRE / JDK to run. They are just executable files even though they are platform Independent.
Java is a programming language that compiles your source code into Java VM byte-code, or better said for a different "instruction set". In order to run a program compiled like this (jar) you must have a Java Virtual Machine that can execute those instructions and in that way run your program. This Java VM always runs JAR files in the same way regardless of the OS it runs on (it being Java VM).
So, No... you cannot run jar files (Java programs) without installing the run-time environment (Java VM) on your host OS. You must have the Java VM installed (is a part of JRE) in order to execute java programs.
Hey I think it is possible when we convert this jar to exe and use private jre(means this jre is used only for this application).Now question is how we can do this:
steps:
1.Install launch4j(http://launch4j.sourceforge.net/).
2.install jre.
3.copy your application and installed jre in temp temp folder(c:\windows\temp)
4.open launch4j and point the desired path for your jar and jre to the temp folder.
5.run or build your application.
6.we can see one exe file is generated in temp folder.
7.copy this exe and jre(which is present in temp) and distribute it.
8.donot rename this jre folder after building the exe because when you double click on the exe it will automatically find the jre which is used to build this application.
for more details:
http://stackoverflow.com/questions/6863354/i-make-my-executable-jar-in-exe-format-but-i-want-to-add-jre-with-this
Launch4j is a wrapper : the created binary file still needs the JRE.
If you want to create native executables, you need to use GCJ, the java compiler of the GNU compiler collection. The project has improved a lot these last years, so that AWT or SWING applications can also be compiled.
Start here : https://gcc.gnu.org/wiki/GCJ
- Badges
- Science topic
- Similar topics
- Computer Science and Engineering
- Programming Languages