Need help -how to use a GUI to compile a file

Question

hello peeps,
I have this problem, let's get directly into it, i have a program that has GUI with a Text Area that im going to copy a text file into it (using JFileChooser FileReader and readLine() ...) so i have radio buttons like (view, compile and execute) and an OK button to get the selected option, what i want to know is how to compile the file that is in the text area, like how to get to the MS-dos console and javac to start. i hope this description is clear, and i'll be very appreciative for any help!

Answer 1

thanks for your response, but its not working it keeps on throwing IOException, i tried to put a direct string into it like (Runtime.getRuntime().exec("javac MyClass.java"); and same thing happend. Am i missing something? like is there something to add before calling that line of code? i did import Runtime
ok here is how my code looks like:
   if(compile.isSelected())
                   try
                   //name of the file im pasting into the text area  
                   String filename = file.getName();
                   Runtime.getRuntime().exec("javac" + filename);
                   catch (IOException e)
                     System.out.println("error compiling program");
               }