SimpleDateFormat incorrectly rolling year forward during format of Date [duplicate]

Answer 1

You have a typo use E d MMM yy instead of E d MMM YY.

From the docs :

y : year

Y : Week year

Answer 2

You have written YY which means week. You need the year, hence you will need to write yy

In case you need more details you can check all the meaning of the different variables in the documentation of SimpleDateFormat class.

y   Year            Year    1996; 96
Y   Week year       Year    2009; 09
M   Month in year   Month   July; Jul; 07
w   Week in year    Number  27
W   Week in month   Number  2
D   Day in year     Number  189
d   Day in month    Number  10