How to use iterators in java?

I have implemented Priority Queue interface for making heap. Can you tell me how to implement an iterator on the top of that? point me to some apropriate tutorial,i am new to java and on a very short

Regular expression to match email addresses

I am trying to validate a TextEdit in order to contains a truly email address. I have a regular expression to do that, but it validates mor开发者_JAVA技巧e than one address, and I just want to validat

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Detect last login date/time in SQL Server 2000

Is there a way of determining when a given user last logged into SQL Server?We are about to carry out an audi开发者_开发问答t of our database server and would like to delete users that are redundant.

什么歌平调又火？

Apache crashes when php_apc extension is turned on when using symfony?

It\'s happenning in windows. PHP5.3.0 Apache2.2.11 Symfony 1.4.1 Is there a fix ? [apc-error] Cannot redeclare class sfeventdispatcher in D:\\wamp\\symfony-1.4.1\\lib\\event_dispatcher\\sfEventDi

data sync from rails with iphone sqlite db

I\'m wondering whether there is a bossibility to export some selected data from my rails mysql db to a other sqlite db. The aim is to send that sqlite file directly to my iPhone application... That wa

How to get started with Blueprint [CSS Framework]?

Is it worth adapting to a css framework开发者_运维知识库 or just use the css we all know? How to get started with Blueprint [CSS Framework]?

COM DLL - using Mono instead of MS .NET Framework

I have a DLL written in C# which is acessed by a native EXE (written in Delphi开发者_C百科) via COM. Now I was asked to make it work with Mono (on Windows, not Linux) instead of Microsoft .NET Framewo

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