Java command line

[Charbel]

Hi,

does Anyone know how to execute a command line command from within java code?

I am using windows N.T. and i would like to execute a command from a Java program.


Thanks.


charbel.

[Zafir Anjum]

See the docs for the class Runtime. The exec() method is probably what you

are looking for

[Charbel]

Hi,

Thanks for replaying to my message i have used the following :



String classPath = "d:\\javastar\\javastar.zip;f:\\bkw1\\lib\\rescue.zip;c:

\jdk1.1.6\\lib\\classes.zip;F:\\bkw1\\source\\classes;d:

\\jdk\\lib;d:\swingall\\swingall.jar ";

Runtime comp = Runtime.getRuntime();

comp.exec("javac -classpath "+classPath+" "+filename);



but it seems that nothing happens when i run the program!!!!!!!.



what i want is to have:

javac -classpath d:\\javastar\\javastar.zip;f:\\bkw1\\lib\\rescue.zip;c:

\\jdk1.1.6\\lib\\classes.zip;F:\\bkw1\\source\\classes;d:

\\jdk\\lib;d:\\swingall\\swingall.jar filename

executed at the command prompt.



thanks.





charbel

[vinjava]

plese get the args values into the variables in your programe and display it back if more than one args loop it


vinay kumar s.v

[kannanbalu]

Try the foll. if you are working in windows os.

comp.exec("cmd /c javac -classpath "+classPath+" "+filename");

[sanjubose]

but how to give the input from one process to another process started by a java program.
sanjubose

[Geert Arys]

Hi,

Recently, I posted this:
http://codeguru.earthweb.com/bbs/wt/showpost.pl?Board=java&Number=15098

You can easily couple an output stream of one process to an output stream of another process using the information in this post.

Regards,
Geert Arys