Simple CMD Problem... Please help!

Question

All I want to do is have my GUI .java program compile compile .java code to .class code from a UI form the fill out.
Process p = Runtime.getRuntime().exec("javac theirJavaFileName.java");
Whenever I run this, I simply get:
java.io.IOException: Cannot run program "javac theirJavaFileName.java" CreateProcess error=2, The system cannot find the file specified
When I run my commands (which are a little more complex in my program), the code compiles fine through CMD. What could be the problem?
Thanks!
PS all variables are defined correctly: My code looks like this:
Process p = Runtime.getRuntime().exec("javac -classpath \"" + fileSource + "\" \"" + file.getAbsolutePath() +"\"");
ToXSiK

Answer 1

Hello,
I see you have your problem sorted out.
As a support "tutorial", in order to understand the advices that you were given, I recommend you read the whole "mother of all Runtime.exec()" articles: http://www.javaworld.com/jw-12-2000/jw-1229-traps.html?page=1
Do insist reading it past the first page, you'll see your exact problem (and more) described, along with explanations as to why.
Process p = Runtime.getRuntime().exec("javac theirJavaFileName.java");And please learn how to use tags.
Regards,
    J.