Answer Posted / bharathi

In truth, they both meant the same..SUN decided to switch to
majar version as acclaimed with "marketing geniuses". so
changed java1.5 and java1.6 as java5 and java6 respectively.
As well as others java1.2, java1.3 and java1.4.. but java1.3
and java1.4 was pick up and is referred to java2 only. when
java used for context as a technology or platform it is
meant as java6(major version) but when speaking as product
for implementing the technology is meant as java1.6.

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