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compiling .java file into .class file

ok i downloaded the java development kit (JDK) from the SUN website which included the Java Runtime Environment (JRE).

all i am looking to do is compile a .java file i have into a .class file. is there some site (which uses the latest version of the compiler) that will let you submit the .java file and spit back a .class file?

girionis

All you need to do is to use the javac command to do it. If you have a program called MyApplication.java you need to do: javac MyApplication.java and this will give you the MyApplication.class file which you can run by doing a: java MyApplication

Hope it helps.

mgaurav

look at the directory where you installed the java.

make sure that the directory "JAVA_INSTALL_DIR/bin" is in your path.

make sure that the file "JAVA_INSTALL_DIR/jre/lib/rt.jar" and "JAVA_INSTALL_DIR/lib/something.jar" (i don't recall right now which one) are in the CLASSPATH.

On Windows:
set CLASSPATH=path_to_rt.jar;path_to_something.jar

On Linux:

export CLASSPATH=path1:path2

If it fails, post here the configuration of your JDK installation (OS, path of installation etc)

HIH,
mGaurav

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s_lavie

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Judy Deo

ASKER

why doesn't the JDK automatically create these settings when it installs? also is there a visual studio version for Java (i.e like microsoft's Visual Studio) created by SUN or some other company?

Judy Deo

ASKER

quick question about experts exchange. why doesn't it let you assign partial points? i am going to give the points to "s_lavie" because the link he provided was for an excellent tutorial but "mgaurav" also gave a good answer.

s_lavie

There are plenty.
MS has the VJ++
Borland has the JBuilder
And many more...

There is one for free: http://www.netbeans.org/

Judy Deo

ASKER

led me to the perfect tutorial. very good answer.

s_lavie

Thanks!