What is the command-line equivalent (Linux) of
gcc -o executable file.c
for a jar file? (Java instead of gcc)
I know it is possible to do because at my school, all that is necessary is writing "mars" (the MIPS simulator) in command-line
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4 Answers
To execute a Java JAR file, run the following command, replacing YourJarFile.jar with the filename of your JAR file.
java -jar YourJarFile.jar
EDIT: There is no way to execute a Java JAR like
./YourJarFile.jar
because the Java Runtime Environment must interpret the JAR file, not the operating system's sh.
5 Comments
antlersoft
I think the poster is asking about creating the jar, not executing it.
Louis Wasserman
This is, by the way, the closest approximation you're going to get to an executable. Java doesn't do executables.
spatara
I know, that is what I have been doing, but I want to be able to do it with one word. I my c example, I would be able to write ./executable to run my program.
Louis Wasserman
@spatara: You can't. There is no way to do it with
java and javac. I think gcj might generate executables, though.
VeeArr
You could, of course, create a shell script that runs the appropriate
java command.There is no direct, native, command-line equivalent. @Deltik provides the closest compatible method.
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javac myfile.java
presuming you have a JDK installed ;)
Comments
To compile Foo.java and Bar.java:
javac Foo.java Bar.java
To put the compiled class files in a jar:
jar cvf classes.jar Foo.class Bar.class
Note that if you put your classes in packages, which you should, your class files will be in a sub-directory and you will have to change the jar command accordingly.
