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Java's Versions

Java has had several releases in its early years and the language has quickly grown in size:

Version # classes # packages Released Comment
1.0 212 8 1996  
1.1 504 23 1997  
1.2 1520 59 1998 Also called "Java 2, Release 1.2"
1.3 1840 76 2000 Also called "Java 2, Release 1.3, Standard Edition".

Version 1.3 focused on speed improvements, while adding fewer enhancements than previous releases.

1.4 2991 135 2002 Also called "Java 2, Release 1.4, Standard Edition".

Version 1.4 focused on I/O and XML support .

5.0 3279 166 2004 Sometimes still referred to as "Java 2, Release 1.5, Standard Edition".

Version 5.0 focused on speed/memory improvements and several developer improvements like generics and enumerated types.

6.0 3793 203 2006 Version 6.0 focused on speed and web service improvements as well as language improvements such as the addition of annotations.


Java's Editions

Three editions for Java are:

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