Create a temporary file..

Question

Hi guys,
i've an easy question for you. I've a jsf application, when i click on a button a method starts that creates a temporary file, run an applet that loads this file and when the applet ends the temporary file has to be deleted.
What is my problem?
I've tried to create the temporary file with
String y="good";
File w=File.createTempFile("giu",".txt");
          BufferedWriter b;
          b = new BufferedWriter(new FileWriter(w));
b.write(y);i've searched a giu.txt file but it doesn't exists!!!
Please help me to understand where is my error,thanks

Answer 1

thanks guys for your help but it doesn't work!!
This is my simple method
public String go()throws IOException{
          try {
               System.out.println("hi");
             // Create temp file.
             File temp = File.createTempFile("aaaaa",.txt );
             System.out.println("hi1");
             // Write to temp file
             BufferedWriter out = new BufferedWriter(new FileWriter(temp));
             System.out.println("hi2");
             out.write("aString");
             System.out.println("hi3");
             out.close();
         } catch (IOException e) {
              System.out.println("hi100");
          return "greeting";
     }when i run it all try code is correctl executed without throwing exceptions but aaaaa.txt isn't created!!
How can i do?
Please help me