I like that you use +'s to concat strings, it shows a real lack of
experience doing optimizations since that is the very first thing on every
list.

>                 System.out.println(new Date() + ":" + new
Random().nextInt());

At least most of your code uses objects correctly I didn't find any
instances of places you did a type conversion functionally. That is usually
one of the lowest hanging fruits, because it creates additional objects, and
is a memory hog.



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