Also worthwhile is the Daily Cup of Tech’s PC System Repair System on a USB Key.

<value-of format="MM/dd/yyyy hh:mm:ss">new Date()</value-of>

More tips here.

$wgGroupPermissions['*']['edit'] = false;

This will remove the edit-permissions from users who have not yet logged in.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System

Add DisableLockWorkstation = 1 to disable.

In Eclipse… The list of tokens that can be used inside an SuppressWarning annotation is:

• all to suppress all warnings
• boxing to suppress warnings relative to boxing/unboxing operations
• cast to suppress warnings relative to cast operations
• dep-ann to suppress warnings relative to deprecated annotation
• deprecation to suppress warnings relative to deprecation
• fallthrough to suppress warnings relative to missing breaks in switch statements
• finally to suppress warnings relative to finally block that don’t return
• hiding to suppress warnings relative to locals that hide variable
• incomplete-switch to suppress warnings relative to missing entries in a switch statement (enum case)
• nls to suppress warnings relative to non-nls string literals
• null to suppress warnings relative to null analysis
• restriction to suppress warnings relative to usage of discouraged or forbidden references
• serial to suppress warnings relative to missing serialVersionUID field for a serializable class
• static-access to suppress warnings relative to incorrect static access
• synthetic-access to suppress warnings relative to unoptimized access from inner classes
• unchecked to suppress warnings relative to unchecked operations
• unqualified-field-access to suppress warnings relative to field access unqualified
• unused to suppress warnings relative to unused code

The Sun JDK has seven categories (as mentioned here): all, deprecation, unchecked, fallthrough, path, serial, and finally.

String clean = dirty.replaceAll("\\P{ASCII}+", "");

Sending Mail with the JavaMail API

You will need the JavaMail library (mail.jar) as well as the Java Activation Framework (activation.jar) to get it running…

	public MailSender() {
	    Properties props = new Properties();
	    props.put("mail.smtp.host", "mail.yourhostnamehere.com");
	    session = Session.getDefaultInstance(props, null);
	}

	public boolean sendEmail( String to, String from, String subject, String body ) {
		try {
			Message message = new MimeMessage( session );
			message.setFrom( new InternetAddress( from ) );
			message.addRecipient( RecipientType.TO, new InternetAddress( to ) );
			message.setSubject( subject );
			message.setText( body );

			Transport.send( message );
			return true;
		} catch( AddressException e ) {
			log.error( "ERROR Occurred:", e );
			e.printStackTrace();
		} catch( MessagingException e ) {
			log.error( "ERROR Occurred:", e );
			e.printStackTrace();
		}
		return false;
	}

If you need information on how to unzip files, go away and learn before you go anywhere near a development environment or the Internet in general. Seriously.

The most useful command line options:

• -a = show all network access
• -b = shows the process, or on windows the process id that is using the network (the process id can be matched up to a process via the task manager)
• -n = don’t do a dns lookup

You can obviously chain this command together with grep:

• netstat -anb | grep 80