J2SE 5.0 introduces a lot of radical language elements, these changes or less reduces some of our coding burdens, most of which will inevitably be applied to the upcoming J2EE 1.5.0 (J2EE 5.0?). The main new features include: 1-generic 2-enhanced for loop 3-automatic packing / unbox 4-type security enumeration 5-variable length parameter 6-static reference 7-metadata (annotation) 8- The formatting of the C style Input / output I will do more detailed descriptions of the above items respectively in the next topic.
