/** * 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.awt.*; import java.io.*; import java.lang.*; import java.applet.*; 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); } } }