Do you know how to print a single double-quote character?
The solution is that you have to escape certain "special characters" - the quote is one. so inside a pair of quote, you use a back-slash to tell
Java (and many other languages) "treat the next character different than normal".
So a single double-quote character could be printed like this:
Now try and extend that to print two double quotes.
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors