Re: Itchy problem

From:

"Steve W. Jackson" <stevewjackson@knology.net>

Newsgroups:

comp.lang.java.help

Date:

Wed, 09 May 2007 14:33:16 -0500

Message-ID:

<stevewjackson-A6CE1E.14331509052007@individual.net>

In article <1178738486.158792.217130@e65g2000hsc.googlegroups.com>,
Ravi <ra.ravi.rav@gmail.com> wrote:

import java.io.*;

class DataIO {
        public static void main(String args[]) {
                FileOutputStream f;
                try {
                        f = new FileOutputStream("test");
                } catch (FileNotFoundException fe) {
                        System.out.println(fe);
                        System.exit(1);
                }
                DataOutputStream d = new DataOutputStream(f);
                try {
                        d.writeDouble(7.6d);
                        d.writeFloat(90.9f);
                        d.writeChars("Ravi");
                        d.close();
                        f.close();
                } catch (IOException ioe) {
                        System.out.println(ioe);
                        System.exit(2);
                }
        }
}

Gives the error:
  DataIO.java:12: variable f might not have been initialized
                DataOutputStream d = new DataOutputStream(f);
                                                          ^

How to resolve this problem.

The simplest way would be to add "= null" to the declaration, so that it
actually gets explicitly initialized at that point.
--
Steve W. Jackson
Montgomery, Alabama