I/ The Historical Collection Classes
1/ Arrays. (Copy and Clone, Immutability, Reflection)
2/ The Vector and Stack (Immutability)
3/ The Enumeration Interface.
4/ The Dictionary, Hashtable, Properties classes.
5/ The BitSet classes.

II/ The Collections Framework
1/ Sets.
2/ Lists.
3/ Maps.
4/ Sorting.
5/ Special Collections Support.
6/ Array Algorithm Support.
7/ Custom Implements.
8/ Compatibility Issues.
9/ Advanced Usages.

III/ Alternative Collection Libraries
1/ JGL Libraries.
2/ util.concurrent.
3/ Colt.

1/ Arrays
a/ Copy
– System.arraycopy(Object src, int srcPos, Object dest, ...

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