I am trying to use wsl 2 to run java programs, and I will be writing the code in sublime text 3. I have already installed java in wsl 2, but don't know how to run a program through it built in sublime.
First, copy the java file to the linux system, the windows disk can be copied from the mnt directory
Make sure you have successfully installed the Java environment
Use the javac command to compile the .java file,
Use java command to execute .class file
Related
Environment: Windows 11
Problem: cannot open .jar file(the MARS assembly language simulator)
Hello, I am currently trying to install the MARS assembly language simulator. It is a .jar file so I downloaded java to open it. However, I still can't open the file even with java downloaded.
I checked if java was installed using my cmd:
Command prompt showing java successfully installed
I tried double-clicking it did not work. So I right-clicked it to open with other apps. But I did not see java in the given options.
Cannot find the java option to open the file
Thank you so much for helping!
Use your prompt
CD into the directory with the jar
then execute
java -jar Mars.jar
...any more troubles , open file properties tab with right click on the jar and check permissions to execute the file.
Installing Java usually means installing a JVM, which is a Java Virtual Machine. You won't be able to launch files from a Windows context menu like this, because "Java" is not a program that opens files.
Instead you need to:
Either a terminal and call javaw.exe with the parameters -jar and your .jar-file. E.g.:
C:\your\java\binaries\javaw.exe -jar -SomeJarFile.jar
Or add the Java installation to your environment variables, then you can call javaw.exe without providing some specific path
I have created a java program (in Eclipse). I have successfully compiled it to a .jar file which I can run on windows without any problems. I want to give this program to a friend who has a MacOSX. So my aim is to:
Create a file which can be run on MacOSX
The twist is that I have to configure it on my Windows computer since I don't have access to a Mac. Any advice would be of great help!
I am not sure what you are referring as "create a file which can be run on macOSX"
If you want to run on any OS you just need a JRE on that particular system without it you cant run. It will provide a runtime environment to run a jar file. Then use below command to run the jar.
java -jar Myjar_file.jar
Setup
I am running on windows 10
Have python 3.6 and Java 8
description
I have a Java program which calls and passes an argument to a python program and then receives its output using system commands and cmd.
Question
How do I convert it into a single exe file that is the user can run it without installing java(jdk or jre) and python.
Both are a part of my system variable
Thank you
You can use launch4j application which can convert your jar to an .exe file.
Refer to this: https://www.programcreek.com/2009/05/convert-java-jar-file-to-exe/
Use pyinstaller to package the python file in a exe.
Then in the java program replace xyz.py with xyz.exe
Use JarToExe to convert the jar into a Windows .exe file.
This way you would have two exe files but the user would not need to install java or python
I am new to Java.
Basically, I developed a java projects which contains multiple Java packages inside Eclipse. The project runs OK on my desktop with a redhat Linux installed. However, I need to run it on a more powerful Linux server (redhat enterprise Linux) which does not have X11 installed. Therefore, it is impossible to run Eclipse on that server.
Is it possible to do that? If so, how can I move the entire project to that server including the input and output folders?
Thanks
In Eclipse use the "Export Runnable Jar" option. Highlight your project then click file->Export, choose Java, choose Runnable Jar file. Otherwise you can also use the javac compiler to compile your project and run it with the java command and your main class.
You will need to install the JRE on the machine you want to run it on. This can be done with the following command:
yum install java-1.6.0-openjdk*
Once you have java then it is simply a matter of executing your application. I would recommend using eclipse to compile your project to a jar and use the following command to execute it:
java -jar *JarFileName*.jar
Running Java is nothing to do with Eclipse . You can run your java program in linux machine by opening terminal .
Step1;- Set your JAVA_HOME in your bash profile .
Step2:- open terminal , go to the folder or package where your main program is present.
Step 3:- compile it using javac -cp lib.jar Filename.java
Step 4:- After compilation class file will be available , run it using java filename.java
Usually IDE like eclipse is for development not for running the application , but Linux version of eclipse is also available
http://eclipse.org/downloads/?osType=linux
Is it possible to execute a JAR file on any OS (like Windows, Linux, Mac OS X)? I want to build a simple application that I want to run on Linux, Windows, and Mac OS X. Could the JAR file be run on any OS with java installed?
The Jar files run on any OS for which a JVM exists.
Yes, as long as you don't use any native libraries (JNI) this is how java works. It's platform independent.
As other said, as long as you have Java installed and avoid using native code, you should be good to go. One thing to note is that you can usually run a JAR file just by double clicking it, and it opens like a native executable (on Windows this is how it works by default, on other OSes you can configure this behavior).
Such JAR files are called executable JAR files. If what you want to create is an executable JAR file, then you need to add a manifest file that tells the Java virtual machine (JVM) the name of the main class. Executable JAR files also can be run on the command line by doing:
java -jar myprogram.jar
If your JAR is not an executable JAR, then to run your program you have to add the JAR to your classpath and then execute the main class. To add a JAR to the classpath:
java -classpath path/to/your/program.jar com.mypackage.Main
Jar files are designed to run on any OS that has a JVM of a compatible version installed. Some jar files, however, may have be compiled from Java code that used OS-specific code (say talking to Windows registries), so testing it on other OS's is wise.
Yes, it can as long as it's not ruining from the terminal or command prompt (like java -jar name.jar.) it should work just fine.