Re: New VSI post on Youtube

On 8/20/2024 8:29 AM, Simon Clubley wrote:

At times, Java itself seems to "feel" like it has been designed by theorists
with little real-world experience. All the classes-upon-classes when doing
I/O come to mind here.

JCP is just like ANSI, ISO and ECMA.
Java is literally designed by committee.
And there are some horror decisions. The compiler API comes
to my mind - it takes 200 lines to do what you can do in 5 lines
in C#.
The java.io package may seem a bit complex, but it makes perfect
sense when you learn the structure.
The basics is:
InputStream - read bytes from anything
     FileInputStream - read bytes from file
     ByteArrayInputStream - read bytes from byte array
     ...
OutputStream - write bytes to anything
     FileOutputStream - write bytes to file
     ByteArrayOutputStream - write bytes to byte array
     ...
Reader - read chars according to encoding from anything
     FileReader - read chars according to encoding from file
     CharArrayReader - read chars according to encoding from char array
     ...
Writer - write chars according to encoding to anything
     FileWriter - write chars according to encoding to file
     CharArrayWriter - write chars according to encoding to char array
     ...
All very systematic.
On top of that there are two convenience classes to work with text
files:
* BufferedReader that wraps any Reader and provides a readLine method
* PrintWriter that wraps any Writer and provides print, println and
   printf methods
Remember that and you can handle 98% of cases.
For the last 2% reading the docs will be needed.
Arne