For-each Loop
作用：if you need not operate the designated elements within the iterator or array, for-each loop will bring the beautiful code for you and reduce the error opportunities.
            eliminates the drudgery and error-proneness of iterators and index variables when iterating over collections and arrays.
Example: String[] stringArray;
            for (String individualString: stringArray) {...}

I noticed that most of Russian guys in TopCoder use the for-each loop.

Autoboxing/Unboxing
作用：automates to box/unbox between primitive types and the appropriate wrapper types.
Example:  ArrayList<Integer> intList = new ArrayList<Integer>();
              int total = intList.get(0);

Typesafe Enums
作用：replace int Enum Pattern (e.g. public static final int XXX = 0;) to represent a fixed set of constants.
Example: public enum WEEKENDS { SAT, SUN };
             private final WEEKENDS weekend;

Varargs
作用：automates and hides the passing process in the case of the arbitrary number of parameters;
       eliminates the need for manually boxing up argument lists into an array when invoking methods that accept variable-length argument lists.
       Varargs can be used only in the final argument position.
Example: public static String format(String pattern, Object... arguments);

Static Import
作用：avoid qualifying static members with class names without the shortcomings of the "Constant Interface antipattern."
Once the static members have been imported, we don't have to use "ClassName.staticMemeber" in our classes.
Example: import static java.awt.Math.*; 

Metadata
作用：avoid writing boilerplate code by enabling tools to generate it from annotations in the source code.
Example: public @interface XXX {...}

More information about "J2SE 5.0 new features" could be found at java.sum.com.

Actuate 公司 在2005年9月27日正式推出Actuate BIRT1.0通用版, 它是Eclipse BIRT 的商用版。Actuate BIRT以收取年费的方式提供有保障的许可，为付费用户解决问题与错误，提供法律保障以及熟练的支持。

不过看起来没什么实质性的意义，有人会花$100去买一个可以Free download的open source software吗？至少中国人不会吧。 就算需要解决问题与错误， 也可以在Eclipse - BIRT newsgroup上提问或File a bug entry in Bugzilla。

Recently, BO is recuiting lots of developers and QA engineers in Shanghai R&D center.