You can also use two IDEs that are freely available and not time limited if you agree with the liscence agreements. Oracle 10g JDeveloper from http://www.oracle.com and BEA Weblogic 8 SP 4 from http://www.bea.com.
Both provide excellent documentation and are quite easy to use, I am a C# consultant who works with Visual Studio 2003, but I find these IDES very easy to use although I am a Java outsider.
The Websphere however, last time I checked had a 90 day limit on it, but I believe it is the industry leader, the core IDE webshpere is based on, Eclipse, is available for a free download however the functionality will be dramatically reduced off course.
MCPD (Enterprise Application Developer, Windows Developer, Web Developer - .NET 2.0), MCTS (Windows Apps, Web Apps and Disbributed Applications - .NET 2.0), MCITP (Database Developer & Business Intelligence Developer - SQL Server 2005), MCAD, MSCD.net, SCJP 5, SCWCD 1.4, SCBCD, SCMAD, SCDJWS, SCJA
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