some java questions

[Manish Kumar Agarwal]

(1)   Best way of maintaining cache in java. ----Apart from hashmap , weakhashmap -- no third party APIs

(2)   How to clear cache at any time. -----Not just clearing hashmap.

(3)   Can we directly clear data from heap?

(4)   What is dynamic caching?

(5)   Why Sun (JCP) used hash in java. ---- Apart from things that we use it in hashmap and hashset for quick retrieval and apart from that bucket concepts.

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Thanks & Regards,
Manish Kumar Agarwal
http://www.javasociety.blogspot.com/