WriteFile.java Source code

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Here is the source code for WriteFile.java

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/* From http://java.sun.com/docs/books/tutorial/index.html */
/*
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *
 * -Redistribution in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
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 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
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 *
 * You acknowledge that this software is not designed, licensed or intended
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 */
/**
 * By default, this applet raises a security exception, unless you configure
 * your policy to allow applets from its location to write to the file
 * "writetest".
 */

import java.applet.Applet;
import java.awt.Graphics;
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class WriteFile extends Applet {
    String myFile = "writetest";

    File f = new File(myFile);

    DataOutputStream dos;

    public void init() {

        String osname = System.getProperty("os.name");
    }

    public void paint(Graphics g) {
        try {
            dos = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(myFile), 128));
            dos.writeChars("Cats can hypnotize you when you least expect it\n");
            dos.flush();
            g.drawString("Successfully wrote to the file named " + myFile + " -- go take a look at it!", 10, 10);
        } catch (SecurityException e) {
            g.drawString("writeFile: caught security exception: " + e, 10, 10);
        } catch (IOException ioe) {
            g.drawString("writeFile: caught i/o exception", 10, 10);
        }
    }
}