CODE NEEDS TO BE IN JAVA and please read everything down below in its entirety. Create a GUI calculator that meets any o

[answerhappygod]

CODE NEEDS TO BE IN JAVA and please read everything down below
in its entirety.
Create a GUI calculator that meets any of the follow themes for
a calculator that mimics the behavior of a GUI calculator like the
Windows Calculator:
Please make sure the program displays:
1. Advanced string usage (String builder, RegEx, etc)
2. Files / Streams
3. Object Serialization
4. Databases
5. Concurrency
Please document in the code when your programming is showcasing
the skills above. It would be much appreciated if you could
document what you did in this code and any special instructions on
how to use the calculator. Please make sure your code works. I
realize this is asking for a lot so I will make sure to leave a
thumbs up.